[Gluster-users] Possible SHD stalling

Jaco Kroon jaco at uls.co.za
Thu May 7 19:40:54 UTC 2020


Hi,

So upgrading to 7.5 made a difference in that it takes a bit longer to
cause chaos, but it still does the exact same thing.

To be precise:

I've now had to set:

gluster volume set vpbx_shared cluster.heal-wait-queue-length 1
gluster volume set vpbx_shared cluster.shd-wait-qlength 1
gluster volume set vpbx_shared cluster.shd-max-threads 1

With any of these settings >1 I end up in a situation where simple
directory listings of < 100 entries in a folder takes upwards of a
minute to complete *from time to time*.

It seems that when the logs

With these the maximum stall I can reproduce is usually around 3 seconds
before the directory listing will complete, but about 5s worst case. 
I've now reverted these as well, which are known for us to cause issues
under heal required conditions:

cluster.metadata-self-heal             
on                                     
cluster.data-self-heal                 
on                                     
cluster.entry-self-heal                
on                                     

Not sure if I need to remount for these to become effective but I've
done so just to be on the safe side.

I'm still seeing these errors:

[2020-05-07 19:20:12.763311] W [MSGID: 114031]
[client-rpc-fops_v2.c:1983:client4_0_setattr_cbk]
0-vpbx_shared-client-1: remote operation failed [Invalid argument]
[2020-05-07 19:20:12.995675] W [MSGID: 114031]
[client-rpc-fops_v2.c:1983:client4_0_setattr_cbk]
0-vpbx_shared-client-1: remote operation failed [Invalid argument]
[2020-05-07 19:20:59.199776] W [MSGID: 114031]
[client-rpc-fops_v2.c:1983:client4_0_setattr_cbk]
0-vpbx_shared-client-1: remote operation failed [Invalid argument]

And the start of my issues still seem to co-incide with that.  Sample case:

# time ls
...
real    0m5.140s
user    0m0.009s
sys    0m0.000s
# f=(*); echo "${#f[@]}"
165

This just does not seem right.  Note, again, if I set *any* of the above
parameters >1 these delays get far, far worse (I've had over a minute
for this exact same ls).

Any advise would be greatly appreciated.  To me, it looks like some lock
is being taken somewhere, and takes a while to release.  I don't
understand the glusterfs internals nearly well enough to understand
exactly what's going on here, nor do I know what information to provide
to help drill down on this.  Happy to go look at code, if I can get
pointed in a direction.

Kind Regards,
Jaco

On 2020/05/05 08:43, Jaco Kroon wrote:
>
> Hi Artem,
>
> I'll do that.  In the meantime consider this (inferred from the
> changelogs).
>
> It seems like glusterfs SHD is queueing into a bounded queue under
> lock conditions, and waiting for space to open up.  At least, this is
> what's hinted in the changelogs, I've been trying to grasp the SHD
> code for two days now and am not getting to wrap my head around that. 
> If this is true, then the only way to avoid lock-ups are to ensure
> that the queue is larger than the total number of files that can ever
> require healing (effectively making the queue unbounded).
>
> Kind Regards,
> Jaco
>
> On 2020/05/04 21:56, Artem Russakovskii wrote:
>> I reported something similar recently to this list, and I highly
>> advise you to update to 7.5 (in my case it was 5.11 -> 5.13), then
>> see if it keeps happening. The self heal issues should be fixed there
>> properly at least.
>>
>> Sincerely,
>> Artem
>>
>> --
>> Founder, Android Police <http://www.androidpolice.com>, APK Mirror
>> <http://www.apkmirror.com/>, Illogical Robot LLC
>> beerpla.net <http://beerpla.net/> | @ArtemR <http://twitter.com/ArtemR>
>>
>>
>> On Sat, May 2, 2020 at 2:04 PM Jaco Kroon <jaco at uls.co.za
>> <mailto:jaco at uls.co.za>> wrote:
>>
>>     Hi All,
>>
>>     So we've got a cluster currently running on glusterfs 7.3
>>
>>     Heal performance is absolutely terrible (it starts of great, runs
>>     for a while then completely trips up).
>>
>>     Once the SHD trips up, access speeds to the cluster also becomes
>>     poor.  And with poor I mean directory listings that normally
>>     takes well under 500ms takes upwards of 10s, but I've seen
>>     upwards of 40s (although a follow up ls immediately after is nice
>>     and fast again, temporarily).  With all SHDs killed this
>>     particular ls is as per normal (around 30-50ms).
>>
>>     The SHD logs doesn't provide any usable clues, the only variance
>>     in logs is this, just before all daemons across the cluster
>>     crawls to a near halt.
>>
>>     [2020-05-02 19:55:58.627036] I [MSGID: 108026]
>>     [afr-self-heal-common.c:1747:afr_log_selfheal]
>>     0-vpbx_shared-replicate-0: Completed entry selfheal on
>>     5b9aa3d8-5085-46e2-9500-145b8cbf9a61. sources= sinks=0 1  
>>     [2020-05-02 19:55:58.627058] I [MSGID: 108026]
>>     [afr-self-heal-common.c:1747:afr_log_selfheal]
>>     0-vpbx_shared-replicate-0: Completed entry selfheal on
>>     c736c9b6-f116-468b-adbc-f102f5b57d01. sources= sinks=0 1  
>>      
>>     [2020-05-02 19:55:59.125001] W [MSGID: 114031]
>>     [client-rpc-fops_v2.c:1983:client4_0_setattr_cbk]
>>     0-vpbx_shared-client-1: remote operation failed [Invalid argument]
>>      
>>     [2020-05-02 19:55:59.339803] I [MSGID: 108026]
>>     [afr-self-heal-common.c:1747:afr_log_selfheal]
>>     0-vpbx_shared-replicate-0: Completed entry selfheal on
>>     2e128eeb-e991-4544-8316-4ddfcb4942da. sources= sinks=0 1 
>>     [2020-05-02 19:55:59.490387] I [MSGID: 108026]
>>     [afr-self-heal-metadata.c:51:__afr_selfheal_metadata_do]
>>     0-vpbx_shared-replicate-0: performing metadata selfheal on
>>     527a63a3-9acd-4c3f-b95c-5c719325c973
>>
>>     A few more entries will complete overall and then it'll be a file
>>     every other second.  Once I saw this I ran a few more tests, and
>>     on every test just prior to slowing to a crawl, that entry is there.
>>
>>     There is a perceived improvement when lowering the thread count,
>>     but not significant enough to confirm a correlation.  Even
>>     with**cluster.shd-max-threads=1 this still happens (gets a few
>>     tens thousand files completed instead of few hundred, at 32 it
>>     gets to maybe 400 to 500 before it stalls, 16 does maybe a
>>     thousand).*
>>     *
>>
>>     There are probably performant bursts hereafter, because from
>>     experience we know this process takes about two months.  But this
>>     time around it seems to be much, much worse.  Might be because
>>     that was healing a single brick to another brick, so less locking
>>     going?  At the moment the replicas are basically trying to
>>     populate the newly added arbiters.  Also, we haven't messed as
>>     greatly with the health check settings (queues and threads and
>>     locks nearly as much as since the arbiter addition because
>>     performance has simply dropped to non-acceptable levels.
>>
>>     Unfortunately granular entry heal isn't on at the moment (nor can
>>     I switch it on due to a few million outstanding heals).  This
>>     used to be a 2x2 cluster.  We then moved one of the bricks to a
>>     newly added server using replace-brick.  What a frightening
>>     process this is.  We then proceeded to add the arbiters.
>>
>>     Some of the settings below was absolute shots in the dark, based
>>     on the little information we've been able to track down so far.
>>
>>     Kind Regards,
>>     Jaco
>>
>>     The current gluster volume info (this used to be 2x2
>>     distributed-replicate, aiming to get it to 3x (2 + 1) ... at
>>     current rates we might get there by 2021):
>>
>>     Volume Name: glvol
>>     Type: Distributed-Replicate
>>     Volume ID: 87cfd38f-d72e-4cc2-b644-9e772d2059bb
>>     Status: Started
>>     Snapshot Count: 0
>>     Number of Bricks: 2 x (2 + 1) = 6
>>     Transport-type: tcp
>>     Bricks:
>>     Brick1: zoidberg:/mnt/gluster/a
>>     Brick2: flexo:/mnt/gluster/b
>>     Brick3: bender:/mnt/gluster/c (arbiter)
>>     Brick4: bender:/mnt/gluster/a
>>     Brick5: zoidberg:/mnt/gluster/b
>>     Brick6: flexo:/mnt/gluster/c (arbiter)
>>     Options Reconfigured:
>>     *cluster.heal-timeout: 5 <-- hoping this would at least shorten
>>     the blockages.*
>>     cluster.locking-scheme: granular
>>     cluster.heal-wait-queue-length: 10240
>>     *diagnostics.count-fop-hits: on**
>>     **diagnostics.latency-measurement: on <-- was hoping profiling
>>     might provide some insight.  Going to switch this off now.*
>>     cluster.background-self-heal-count: 128
>>     *cluster.shd-wait-qlength: 131072**
>>     **cluster.shd-max-threads: 32  <-- even with this disk IO never
>>     goes over 10% utilization.  CPU goes to about 2 cores.  So it's
>>     lock contention that's slowing it down we reckon.*
>>     *cluster.metadata-self-heal: off**
>>     **cluster.entry-self-heal: off**
>>     **cluster.data-self-heal: off**<-- these kill performance.
>>     *transport.address-family: inet
>>     nfs.disable: on
>>     performance.client-io-threads: on
>>     features.cache-invalidation: on
>>     features.cache-invalidation-timeout: 600
>>     performance.stat-prefetch: on
>>     performance.cache-invalidation: on
>>     performance.md-cache-timeout: 600
>>     *cluster.self-heal-daemon: yes <-- disabling/enabling this
>>     doesn't help, have to kill the shd and start ... force to get
>>     things moving along again.*
>>     performance.io-thread-count: 16
>>     performance.high-prio-threads: 16
>>     performance.normal-prio-threads: 16
>>     performance.low-prio-threads: 16
>>     performance.least-prio-threads: 4
>>     cluster.self-heal-window-size: 512
>>     cluster.self-heal-readdir-size: 131072
>>     client.event-threads: 8
>>     server.event-threads: 16
>>     network.ping-timeout: 2
>>     *cluster.data-self-heal-algorithm: full <-- most files are small
>>     (<1MB), on dual 1gbit links (so up to 2gbit, but b/w never goes
>>     over 5mbit anyway).*
>>
>>     performance info:
>>
>>     Brick: zoidberg:/mnt/gluster/a
>>     -----------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+                  
>>     8b+                  16b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                  117                  
>>     195                   367
>>      
>>        Block Size:                 32b+                 
>>     64b+                 128b+
>>      No. of Reads:                  306                    
>>     0                     6
>>     No. of Writes:                 1016                    
>>     9                   134
>>      
>>        Block Size:                256b+                
>>     512b+                1024b+
>>      No. of Reads:                  107                   
>>     58                   485
>>     No. of Writes:                  731                   
>>     73                   168
>>      
>>        Block Size:               2048b+               
>>     4096b+                8192b+
>>      No. of Reads:                   43                   
>>     59                   383
>>     No. of Writes:                  295                  
>>     475                 10562
>>      
>>        Block Size:              16384b+              
>>     32768b+               65536b+
>>      No. of Reads:                  347                  
>>     380                   634
>>     No. of Writes:                 1487                 
>>     6369                  3970
>>      
>>        Block Size:             131072b+
>>      No. of Reads:                35704
>>     No. of Writes:                12398
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     957293      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1455091     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     69951  RELEASEDIR
>>           0.00      16.20 us       5.43 us     100.95 us           
>>     113         IPC
>>           0.00     687.33 us      80.53 us   15414.03 us            
>>     30 REMOVEXATTR
>>           0.00     840.76 us      72.71 us   37648.39 us            
>>     52   FTRUNCATE
>>           0.00     138.49 us      36.66 us   25280.24 us          
>>     1385        STAT
>>           0.00     364.93 us      63.45 us   15957.66 us           
>>     810   FGETXATTR
>>           0.00    2208.82 us     127.23 us  267092.17 us           
>>     137        LINK
>>           0.00   37595.33 us    1677.46 us  218313.32 us            
>>     12       FSYNC
>>           0.00     675.61 us     106.82 us  114351.01 us           
>>     698    TRUNCATE
>>           0.00    3995.66 us     147.00 us  109544.46 us           
>>     188      RENAME
>>           0.00     453.11 us      53.37 us  104848.94 us          
>>     1680     SETATTR
>>           0.00    6004.32 us     229.33 us  151322.58 us           
>>     127       MKNOD
>>           0.00      68.74 us      16.11 us   61050.93 us         
>>     11412    FINODELK
>>           0.00    3793.44 us      68.61 us  411523.70 us           
>>     221    SETXATTR
>>           0.00   28669.99 us     227.28 us  138988.41 us            
>>     30     SYMLINK
>>           0.00      56.18 us       7.31 us   41484.37 us         
>>     22640       FLUSH
>>           0.00     105.64 us      19.34 us  351055.72 us         
>>     21693      STATFS
>>           0.00   23642.90 us     244.19 us  234912.25 us           
>>     178       MKDIR
>>           0.00     537.38 us      31.73 us  296911.67 us          
>>     9653       FSTAT
>>           0.00     214.87 us      25.71 us 1712020.99 us         
>>     39054        READ
>>           0.01     147.08 us       1.47 us  241611.80 us         
>>     69951     OPENDIR
>>           0.01    3899.84 us     117.22 us  503422.21 us          
>>     3180       RMDIR
>>           0.01     327.08 us      55.69 us  420376.80 us         
>>     38366       WRITE
>>           0.02    5580.36 us     210.11 us 1029702.30 us          
>>     6169      CREATE
>>           0.05      92.69 us      29.94 us  687955.86 us       
>>     1159936    READLINK
>>           0.40     543.50 us      36.45 us 2430653.54 us       
>>     1449307        OPEN
>>           0.48   87643.67 us      70.20 us  661999.51 us         
>>     10787    FXATTROP
>>           0.53    2342.72 us      20.91 us 4157542.43 us        
>>     447821      UNLINK
>>           0.53  558734.79 us      24.40 us 1399487.63 us          
>>     1889          LK
>>           0.78  145786.31 us      19.06 us 37490825.73 us         
>>     10687     READDIR
>>           0.99    2426.23 us      12.47 us 24176123.13 us        
>>     809430    GETXATTR
>>           1.45     676.83 us       9.30 us 193177067.25 us       
>>     4260021     ENTRYLK
>>           1.76   38325.38 us      21.44 us 46693575.93 us         
>>     91439    READDIRP
>>           4.44    1200.31 us       9.10 us 2559377.90 us       
>>     7352811     INODELK
>>           9.30    1849.24 us       9.28 us 35299050.00 us       
>>     9989221      LOOKUP
>>          79.24   47791.46 us      76.77 us 10488824.26 us       
>>     3294642     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3194806      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     5311     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     54    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1907   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3189457   CI_FORGET
>>      
>>         Duration: 209524 seconds
>>        Data Read: 4775365531 bytes
>>     Data Written: 2354108664 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+                  
>>     8b+                  16b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                  117                  
>>     195                   367
>>      
>>        Block Size:                 32b+                 
>>     64b+                 128b+
>>      No. of Reads:                  306                    
>>     0                     6
>>     No. of Writes:                 1016                    
>>     9                   134
>>      
>>        Block Size:                256b+                
>>     512b+                1024b+
>>      No. of Reads:                  107                   
>>     58                   485
>>     No. of Writes:                  731                   
>>     73                   168
>>      
>>        Block Size:               2048b+               
>>     4096b+                8192b+
>>      No. of Reads:                   43                   
>>     59                   383
>>     No. of Writes:                  295                  
>>     475                 10562
>>      
>>        Block Size:              16384b+              
>>     32768b+               65536b+
>>      No. of Reads:                  347                  
>>     380                   634
>>     No. of Writes:                 1487                 
>>     6369                  3970
>>      
>>        Block Size:             131072b+
>>      No. of Reads:                35704
>>     No. of Writes:                12398
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     957293      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1455091     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     69951  RELEASEDIR
>>           0.00      16.20 us       5.43 us     100.95 us           
>>     113         IPC
>>           0.00     687.33 us      80.53 us   15414.03 us            
>>     30 REMOVEXATTR
>>           0.00     840.76 us      72.71 us   37648.39 us            
>>     52   FTRUNCATE
>>           0.00     138.49 us      36.66 us   25280.24 us          
>>     1385        STAT
>>           0.00     363.20 us      63.45 us   15957.66 us           
>>     810   FGETXATTR
>>           0.00    2208.82 us     127.23 us  267092.17 us           
>>     137        LINK
>>           0.00   37595.33 us    1677.46 us  218313.32 us            
>>     12       FSYNC
>>           0.00     675.61 us     106.82 us  114351.01 us           
>>     698    TRUNCATE
>>           0.00    3995.66 us     147.00 us  109544.46 us           
>>     188      RENAME
>>           0.00     453.11 us      53.37 us  104848.94 us          
>>     1680     SETATTR
>>           0.00    6004.32 us     229.33 us  151322.58 us           
>>     127       MKNOD
>>           0.00      68.74 us      16.11 us   61050.93 us         
>>     11412    FINODELK
>>           0.00    3793.44 us      68.61 us  411523.70 us           
>>     221    SETXATTR
>>           0.00   28669.99 us     227.28 us  138988.41 us            
>>     30     SYMLINK
>>           0.00      56.19 us       7.31 us   41484.37 us         
>>     22640       FLUSH
>>           0.00     105.61 us      19.34 us  351055.72 us         
>>     21693      STATFS
>>           0.00   23642.90 us     244.19 us  234912.25 us           
>>     178       MKDIR
>>           0.00     537.38 us      31.73 us  296911.67 us          
>>     9653       FSTAT
>>           0.00     214.91 us      25.71 us 1712020.99 us         
>>     39054        READ
>>           0.01     147.08 us       1.47 us  241611.80 us         
>>     69951     OPENDIR
>>           0.01    3899.84 us     117.22 us  503422.21 us          
>>     3180       RMDIR
>>           0.01     327.13 us      55.69 us  420376.80 us         
>>     38366       WRITE
>>           0.02    5580.36 us     210.11 us 1029702.30 us          
>>     6169      CREATE
>>           0.05      92.69 us      29.94 us  687955.86 us       
>>     1159936    READLINK
>>           0.40     543.49 us      36.45 us 2430653.54 us       
>>     1449307        OPEN
>>           0.48   87643.67 us      70.20 us  661999.51 us         
>>     10787    FXATTROP
>>           0.53    2342.57 us      20.91 us 4157542.43 us        
>>     447821      UNLINK
>>           0.53  558416.10 us      24.40 us 1399487.63 us          
>>     1889          LK
>>           0.78  145786.31 us      19.06 us 37490825.73 us         
>>     10687     READDIR
>>           0.99    2426.24 us      12.47 us 24176123.13 us        
>>     809430    GETXATTR
>>           1.45     676.75 us       9.30 us 193177067.25 us       
>>     4260021     ENTRYLK
>>           1.76   38324.59 us      21.44 us 46693575.93 us         
>>     91439    READDIRP
>>           4.44    1200.37 us       9.10 us 2559377.90 us       
>>     7352811     INODELK
>>           9.29    1848.94 us       9.28 us 35299050.00 us       
>>     9989221      LOOKUP
>>          79.24   47792.42 us      76.77 us 10488824.26 us       
>>     3294642     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3194806      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     5311     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     54    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1907   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3189457   CI_FORGET
>>      
>>         Duration: 209524 seconds
>>        Data Read: 4775365531 bytes
>>     Data Written: 2354108664 bytes
>>      
>>     Brick: zoidberg:/mnt/gluster/b
>>     -----------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+                  
>>     2b+                   8b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                   53                    
>>     1                    60
>>      
>>        Block Size:                 16b+                 
>>     32b+                  64b+
>>      No. of Reads:                    0                  
>>     213                     2
>>     No. of Writes:                   14                 
>>     1057                    15
>>      
>>        Block Size:                128b+                
>>     256b+                 512b+
>>      No. of Reads:                    0                   
>>     41                   146
>>     No. of Writes:                   59                  
>>     715                    80
>>      
>>        Block Size:               1024b+               
>>     2048b+                4096b+
>>      No. of Reads:                  224                    
>>     9                    15
>>     No. of Writes:                  163                  
>>     282                   404
>>      
>>        Block Size:               8192b+              
>>     16384b+               32768b+
>>      No. of Reads:                   52                   
>>     74                   210
>>     No. of Writes:                 7415                 
>>     1430                  6860
>>      
>>        Block Size:              65536b+             
>>     131072b+              262144b+
>>      No. of Reads:                  299                
>>     15313                     1
>>     No. of Writes:                 2458                
>>     12378                     1
>>      
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     686733      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     837434     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     87338  RELEASEDIR
>>           0.00      22.69 us       7.16 us     332.61 us           
>>     116         IPC
>>           0.00     119.93 us      70.56 us     272.28 us            
>>     57   FTRUNCATE
>>           0.00     152.25 us      86.82 us     340.63 us            
>>     65   FGETXATTR
>>           0.00    2336.06 us      90.05 us   20509.81 us            
>>     23 REMOVEXATTR
>>           0.00     631.26 us     123.17 us   51803.77 us           
>>     121        LINK
>>           0.00     369.27 us      22.64 us  145090.48 us           
>>     490          LK
>>           0.00     360.85 us      45.14 us   46846.98 us           
>>     540        STAT
>>           0.00    1190.96 us     117.40 us   69781.85 us           
>>     200    TRUNCATE
>>           0.00     245.72 us      54.91 us  123985.76 us          
>>     1482     SETATTR
>>           0.00   42139.10 us    3313.56 us  312273.21 us            
>>     12       FSYNC
>>           0.00      55.83 us       8.26 us   49649.35 us         
>>     10047       FLUSH
>>           0.00      57.52 us      14.62 us     820.59 us          
>>     9977    FINODELK
>>           0.00    3191.60 us     143.06 us   96214.75 us           
>>     188      RENAME
>>           0.00   32862.86 us     215.38 us   83851.13 us            
>>     25     SYMLINK
>>           0.00   11392.03 us     230.70 us  105471.90 us           
>>     118       MKNOD
>>           0.00     134.63 us      28.08 us   36326.43 us         
>>     12587       FSTAT
>>           0.00     112.32 us      19.91 us  381241.34 us         
>>     21695      STATFS
>>           0.00     307.86 us      28.00 us  292666.83 us         
>>     16841        READ
>>           0.00   29625.60 us     239.57 us  239532.26 us           
>>     178       MKDIR
>>           0.00     319.24 us      51.19 us  136353.39 us         
>>     33445       WRITE
>>           0.01     175.83 us       1.57 us  513635.22 us         
>>     87338     OPENDIR
>>           0.01     249.96 us      58.42 us  594774.86 us         
>>     85089    SETXATTR
>>           0.01   11001.25 us     119.87 us  612765.03 us          
>>     3180       RMDIR
>>           0.04   14240.66 us     203.89 us 1376758.99 us          
>>     6067      CREATE
>>           0.05      89.45 us      30.14 us  687961.60 us       
>>     1219542    READLINK
>>           0.39    1114.30 us      44.29 us 2412169.89 us        
>>     831371        OPEN
>>           0.51  127078.45 us      78.55 us  694364.09 us          
>>     9493    FXATTROP
>>           0.63     399.16 us       8.43 us 3815689.36 us       
>>     3764714     ENTRYLK
>>           0.86   91973.00 us      19.89 us 24258016.33 us         
>>     22253     READDIR
>>           1.06    6913.71 us      11.58 us 36968532.72 us        
>>     364963    GETXATTR
>>           1.29   62130.12 us      36.89 us 8649871.11 us         
>>     49472    READDIRP
>>           2.89    1477.53 us      11.10 us 2807637.64 us       
>>     4650500     INODELK
>>           4.12   23681.31 us      20.98 us 23291414.50 us        
>>     414352      UNLINK
>>          16.09    5000.31 us       9.04 us 23866016.88 us       
>>     7655621      LOOKUP
>>          72.04   68953.31 us      68.40 us 27542499.65 us       
>>     2486126     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2433405      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     2453     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     69    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1544   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2430885   CI_FORGET
>>      
>>         Duration: 209524 seconds
>>        Data Read: 2051388524 bytes
>>     Data Written: 2208261499 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+                  
>>     2b+                   8b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                   53                    
>>     1                    60
>>      
>>        Block Size:                 16b+                 
>>     32b+                  64b+
>>      No. of Reads:                    0                  
>>     213                     2
>>     No. of Writes:                   14                 
>>     1057                    15
>>      
>>        Block Size:                128b+                
>>     256b+                 512b+
>>      No. of Reads:                    0                   
>>     41                   146
>>     No. of Writes:                   59                  
>>     715                    80
>>      
>>        Block Size:               1024b+               
>>     2048b+                4096b+
>>      No. of Reads:                  224                    
>>     9                    15
>>     No. of Writes:                  163                  
>>     282                   404
>>      
>>        Block Size:               8192b+              
>>     16384b+               32768b+
>>      No. of Reads:                   52                   
>>     74                   210
>>     No. of Writes:                 7415                 
>>     1430                  6860
>>      
>>        Block Size:              65536b+             
>>     131072b+              262144b+
>>      No. of Reads:                  299                
>>     15313                     1
>>     No. of Writes:                 2458                
>>     12378                     1
>>      
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     686733      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     837434     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     87338  RELEASEDIR
>>           0.00      22.69 us       7.16 us     332.61 us           
>>     116         IPC
>>           0.00     119.93 us      70.56 us     272.28 us            
>>     57   FTRUNCATE
>>           0.00     152.25 us      86.82 us     340.63 us            
>>     65   FGETXATTR
>>           0.00    2336.06 us      90.05 us   20509.81 us            
>>     23 REMOVEXATTR
>>           0.00     631.26 us     123.17 us   51803.77 us           
>>     121        LINK
>>           0.00     369.27 us      22.64 us  145090.48 us           
>>     490          LK
>>           0.00     360.85 us      45.14 us   46846.98 us           
>>     540        STAT
>>           0.00    1190.96 us     117.40 us   69781.85 us           
>>     200    TRUNCATE
>>           0.00     245.72 us      54.91 us  123985.76 us          
>>     1482     SETATTR
>>           0.00   42139.10 us    3313.56 us  312273.21 us            
>>     12       FSYNC
>>           0.00      55.83 us       8.26 us   49649.35 us         
>>     10047       FLUSH
>>           0.00      57.52 us      14.62 us     820.59 us          
>>     9977    FINODELK
>>           0.00    3191.60 us     143.06 us   96214.75 us           
>>     188      RENAME
>>           0.00   32862.86 us     215.38 us   83851.13 us            
>>     25     SYMLINK
>>           0.00   11392.03 us     230.70 us  105471.90 us           
>>     118       MKNOD
>>           0.00     134.63 us      28.08 us   36326.43 us         
>>     12587       FSTAT
>>           0.00     112.32 us      19.91 us  381241.34 us         
>>     21695      STATFS
>>           0.00     307.91 us      28.00 us  292666.83 us         
>>     16841        READ
>>           0.00   29625.60 us     239.57 us  239532.26 us           
>>     178       MKDIR
>>           0.00     319.22 us      51.19 us  136353.39 us         
>>     33445       WRITE
>>           0.01     175.83 us       1.57 us  513635.22 us         
>>     87338     OPENDIR
>>           0.01     249.95 us      58.42 us  594774.86 us         
>>     85089    SETXATTR
>>           0.01   11001.25 us     119.87 us  612765.03 us          
>>     3180       RMDIR
>>           0.04   14240.66 us     203.89 us 1376758.99 us          
>>     6067      CREATE
>>           0.05      89.46 us      30.14 us  687961.60 us       
>>     1219542    READLINK
>>           0.39    1114.30 us      44.29 us 2412169.89 us        
>>     831371        OPEN
>>           0.51  127078.45 us      78.55 us  694364.09 us          
>>     9493    FXATTROP
>>           0.63     399.16 us       8.43 us 3815689.36 us       
>>     3764714     ENTRYLK
>>           0.86   91973.00 us      19.89 us 24258016.33 us         
>>     22253     READDIR
>>           1.06    6913.26 us      11.58 us 36968532.72 us        
>>     364963    GETXATTR
>>           1.29   62121.95 us      36.89 us 8649871.11 us         
>>     49472    READDIRP
>>           2.89    1477.58 us      11.10 us 2807637.64 us       
>>     4650500     INODELK
>>           4.12   23681.29 us      20.98 us 23291414.50 us        
>>     414352      UNLINK
>>          16.09    5000.02 us       9.04 us 23866016.88 us       
>>     7655621      LOOKUP
>>          72.04   68956.14 us      68.40 us 27542499.65 us       
>>     2486126     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2433405      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     2453     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     69    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1544   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2430885   CI_FORGET
>>      
>>         Duration: 209524 seconds
>>        Data Read: 2051388524 bytes
>>     Data Written: 2208261499 bytes
>>      
>>     Brick: flexo:/mnt/gluster/b
>>     --------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+                  
>>     8b+                  16b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                  117                  
>>     195                   367
>>      
>>        Block Size:                 32b+                 
>>     64b+                 128b+
>>      No. of Reads:                  130                    
>>     0                     3
>>     No. of Writes:                 1012                    
>>     9                   134
>>      
>>        Block Size:                256b+                
>>     512b+                1024b+
>>      No. of Reads:                   47                    
>>     8                   257
>>     No. of Writes:                  729                   
>>     73                   168
>>      
>>        Block Size:               2048b+               
>>     4096b+                8192b+
>>      No. of Reads:                   10                   
>>     27                   240
>>     No. of Writes:                  294                  
>>     466                 10472
>>      
>>        Block Size:              16384b+              
>>     32768b+               65536b+
>>      No. of Reads:                  139                  
>>     119                   135
>>     No. of Writes:                 1480                 
>>     6273                  3935
>>      
>>        Block Size:             131072b+
>>      No. of Reads:                 7892
>>     No. of Writes:                12327
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     955058      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1450749     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     81377  RELEASEDIR
>>           0.00      15.55 us       5.35 us      31.88 us           
>>     108         IPC
>>           0.00     125.85 us      59.77 us     224.15 us            
>>     44   FTRUNCATE
>>           0.00     198.38 us      81.68 us    1332.45 us            
>>     30 REMOVEXATTR
>>           0.00    4254.16 us     621.52 us   10602.99 us             
>>     4       FSYNC
>>           0.00     795.08 us     190.30 us   16518.64 us            
>>     30     SYMLINK
>>           0.00     195.90 us     111.02 us     953.39 us           
>>     137        LINK
>>           0.00     286.07 us     179.64 us     437.82 us           
>>     119       MKNOD
>>           0.00     162.61 us      65.62 us    3864.77 us           
>>     221    SETXATTR
>>           0.00     117.29 us      48.50 us     317.17 us           
>>     354        STAT
>>           0.00      70.35 us      23.10 us     317.32 us           
>>     777          LK
>>           0.00     461.72 us     114.54 us   16013.81 us           
>>     188      RENAME
>>           0.00     150.40 us      75.59 us     749.54 us           
>>     810   FGETXATTR
>>           0.00     267.80 us      99.67 us     994.58 us           
>>     698    TRUNCATE
>>           0.00    1176.00 us     194.89 us   78261.12 us           
>>     178       MKDIR
>>           0.00     439.83 us      54.38 us   75270.51 us          
>>     1665     SETATTR
>>           0.00      65.89 us      17.39 us     354.77 us         
>>     11372    FINODELK
>>           0.00     131.57 us      32.68 us    2107.52 us          
>>     7398       FSTAT
>>           0.00     120.71 us      31.43 us     847.97 us          
>>     9094        READ
>>           0.00      60.75 us       7.25 us   22520.98 us         
>>     22614       FLUSH
>>           0.00      73.03 us      22.41 us     750.17 us         
>>     21656      STATFS
>>           0.00     323.63 us     166.56 us   23034.44 us          
>>     6145      CREATE
>>           0.00     217.55 us      50.60 us   30734.99 us         
>>     38051       WRITE
>>           0.01     146.39 us       1.80 us  318612.45 us         
>>     81377     OPENDIR
>>           0.01    5641.37 us     108.84 us  468960.33 us          
>>     3177       RMDIR
>>           0.03     100.05 us      30.93 us   49756.93 us        
>>     432439    READLINK
>>           0.13     483.47 us      16.81 us 2608013.14 us        
>>     448381      UNLINK
>>           0.21    7101.56 us      22.26 us 2554390.49 us         
>>     52185    READDIRP
>>           0.35     414.05 us      36.58 us 1038229.93 us       
>>     1444606        OPEN
>>           0.49   78518.02 us      73.39 us  373999.31 us         
>>     10745    FXATTROP
>>           0.72     776.21 us      11.24 us 4271792.57 us       
>>     1605822    GETXATTR
>>           0.77   97829.38 us      18.84 us 9477446.11 us         
>>     13532     READDIR
>>           0.79     320.44 us       7.71 us 2369511.06 us       
>>     4257297     ENTRYLK
>>           1.97     464.02 us       9.38 us 1038460.80 us       
>>     7333722     INODELK
>>          13.73    2372.50 us       8.33 us 6258159.87 us       
>>     9979799      LOOKUP
>>          80.79   42372.04 us      61.49 us 2238308.13 us       
>>     3289103     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2250268      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     3756     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     167    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1908   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2246352   CI_FORGET
>>      
>>         Duration: 209334 seconds
>>        Data Read: 1059777395 bytes
>>     Data Written: 2336921014 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+                  
>>     8b+                  16b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                  117                  
>>     195                   367
>>      
>>        Block Size:                 32b+                 
>>     64b+                 128b+
>>      No. of Reads:                  130                    
>>     0                     3
>>     No. of Writes:                 1012                    
>>     9                   134
>>      
>>        Block Size:                256b+                
>>     512b+                1024b+
>>      No. of Reads:                   47                    
>>     8                   257
>>     No. of Writes:                  729                   
>>     73                   168
>>      
>>        Block Size:               2048b+               
>>     4096b+                8192b+
>>      No. of Reads:                   10                   
>>     27                   240
>>     No. of Writes:                  294                  
>>     466                 10472
>>      
>>        Block Size:              16384b+              
>>     32768b+               65536b+
>>      No. of Reads:                  139                  
>>     119                   135
>>     No. of Writes:                 1480                 
>>     6273                  3935
>>      
>>        Block Size:             131072b+
>>      No. of Reads:                 7892
>>     No. of Writes:                12327
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     955058      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1450749     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     81377  RELEASEDIR
>>           0.00      15.55 us       5.35 us      31.88 us           
>>     108         IPC
>>           0.00     125.85 us      59.77 us     224.15 us            
>>     44   FTRUNCATE
>>           0.00     198.38 us      81.68 us    1332.45 us            
>>     30 REMOVEXATTR
>>           0.00    4254.16 us     621.52 us   10602.99 us             
>>     4       FSYNC
>>           0.00     795.08 us     190.30 us   16518.64 us            
>>     30     SYMLINK
>>           0.00     195.90 us     111.02 us     953.39 us           
>>     137        LINK
>>           0.00     286.07 us     179.64 us     437.82 us           
>>     119       MKNOD
>>           0.00     162.61 us      65.62 us    3864.77 us           
>>     221    SETXATTR
>>           0.00     117.29 us      48.50 us     317.17 us           
>>     354        STAT
>>           0.00      70.35 us      23.10 us     317.32 us           
>>     777          LK
>>           0.00     461.72 us     114.54 us   16013.81 us           
>>     188      RENAME
>>           0.00     150.43 us      75.59 us     749.54 us           
>>     810   FGETXATTR
>>           0.00     267.80 us      99.67 us     994.58 us           
>>     698    TRUNCATE
>>           0.00    1176.00 us     194.89 us   78261.12 us           
>>     178       MKDIR
>>           0.00     439.83 us      54.38 us   75270.51 us          
>>     1665     SETATTR
>>           0.00      65.89 us      17.39 us     354.77 us         
>>     11372    FINODELK
>>           0.00     131.57 us      32.68 us    2107.52 us          
>>     7398       FSTAT
>>           0.00     120.74 us      31.43 us     847.97 us          
>>     9094        READ
>>           0.00      60.75 us       7.25 us   22520.98 us         
>>     22614       FLUSH
>>           0.00      73.03 us      22.41 us     750.17 us         
>>     21656      STATFS
>>           0.00     323.63 us     166.56 us   23034.44 us          
>>     6145      CREATE
>>           0.00     217.50 us      50.60 us   30734.99 us         
>>     38051       WRITE
>>           0.01     146.39 us       1.80 us  318612.45 us         
>>     81377     OPENDIR
>>           0.01    5641.37 us     108.84 us  468960.33 us          
>>     3177       RMDIR
>>           0.03     100.06 us      30.93 us   49756.93 us        
>>     432439    READLINK
>>           0.13     483.47 us      16.81 us 2608013.14 us        
>>     448381      UNLINK
>>           0.21    7101.56 us      22.26 us 2554390.49 us         
>>     52185    READDIRP
>>           0.35     414.01 us      36.58 us 1038229.93 us       
>>     1444606        OPEN
>>           0.49   78518.02 us      73.39 us  373999.31 us         
>>     10745    FXATTROP
>>           0.72     776.24 us      11.24 us 4271792.57 us       
>>     1605822    GETXATTR
>>           0.77   97829.38 us      18.84 us 9477446.11 us         
>>     13532     READDIR
>>           0.79     320.45 us       7.71 us 2369511.06 us       
>>     4257297     ENTRYLK
>>           1.97     464.07 us       9.38 us 1038460.80 us       
>>     7333722     INODELK
>>          13.72    2372.42 us       8.33 us 6258159.87 us       
>>     9979799      LOOKUP
>>          80.79   42373.50 us      61.49 us 2238308.13 us       
>>     3289103     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2250268      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     3756     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     167    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1908   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     2246352   CI_FORGET
>>      
>>         Duration: 209334 seconds
>>        Data Read: 1059777395 bytes
>>     Data Written: 2336921014 bytes
>>      
>>     Brick: flexo:/mnt/gluster/c
>>     --------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+
>>      No. of Reads:                    0
>>     No. of Writes:                32843
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     686562      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     834596     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     93757  RELEASEDIR
>>           0.00      18.50 us       8.21 us      50.20 us           
>>     107         IPC
>>           0.00     205.83 us     126.30 us     412.06 us            
>>     36        LINK
>>           0.00     167.33 us      75.01 us     272.47 us            
>>     65   FGETXATTR
>>           0.00     203.58 us     117.35 us     648.28 us            
>>     88      RENAME
>>           0.00     203.20 us      66.60 us     809.96 us           
>>     153    TRUNCATE
>>           0.00      67.06 us      23.64 us     555.59 us           
>>     491          LK
>>           0.01      51.73 us       7.70 us    1174.64 us          
>>     9339       FLUSH
>>           0.01      62.41 us      15.13 us     636.35 us          
>>     9011    FINODELK
>>           0.03     126.23 us      43.15 us    4760.14 us         
>>     10824       FSTAT
>>           0.03     571.94 us      94.85 us   51697.03 us          
>>     2594       MKDIR
>>           0.05     264.87 us      81.58 us   53152.06 us          
>>     9009    FXATTROP
>>           0.05     423.05 us      38.26 us  548686.55 us          
>>     5754      CREATE
>>           0.05      78.14 us      19.17 us     678.32 us         
>>     32843       WRITE
>>           0.06     526.39 us     130.84 us   41405.46 us          
>>     5798     SYMLINK
>>           0.10     133.73 us      16.25 us  676494.72 us         
>>     34904     READDIR
>>           0.12    2054.48 us      99.28 us   88061.83 us          
>>     2732       RMDIR
>>           0.21     110.60 us       1.19 us   16833.78 us         
>>     93757     OPENDIR
>>           0.72     205.89 us      33.28 us  261023.99 us        
>>     170292      UNLINK
>>           0.85    2971.45 us      21.24 us  257839.19 us         
>>     13840    READDIRP
>>           1.94     200.88 us      25.49 us  461654.32 us        
>>     468842   FTRUNCATE
>>           2.13     212.44 us      54.02 us  461878.34 us        
>>     486882 REMOVEXATTR
>>           2.27     223.01 us      52.03 us  178897.40 us        
>>     493240    SETXATTR
>>           3.53     155.31 us       7.96 us   67873.00 us       
>>     1101338    GETXATTR
>>           3.63     212.32 us      44.42 us  551264.02 us        
>>     829002        OPEN
>>           5.77      76.36 us       7.76 us  962634.73 us       
>>     3660425     ENTRYLK
>>           6.23     304.93 us      42.51 us  661394.43 us        
>>     990644     SETATTR
>>           7.81     382.20 us     107.42 us  846502.78 us        
>>     990766     XATTROP
>>          12.39     549.11 us     135.57 us 1659697.83 us       
>>     1093387       MKNOD
>>          12.47     139.78 us       9.76 us  552067.56 us       
>>     4325281     INODELK
>>          39.53     206.94 us       8.56 us  964823.33 us       
>>     9259429      LOOKUP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1856377      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     933300     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     251    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     293   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     923077   CI_FORGET
>>      
>>         Duration: 209334 seconds
>>        Data Read: 0 bytes
>>     Data Written: 32843 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+
>>      No. of Reads:                    0
>>     No. of Writes:                32843
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     686562      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     834596     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     93757  RELEASEDIR
>>           0.00      18.50 us       8.21 us      50.20 us           
>>     107         IPC
>>           0.00     205.83 us     126.30 us     412.06 us            
>>     36        LINK
>>           0.00     167.33 us      75.01 us     272.47 us            
>>     65   FGETXATTR
>>           0.00     203.58 us     117.35 us     648.28 us            
>>     88      RENAME
>>           0.00     203.20 us      66.60 us     809.96 us           
>>     153    TRUNCATE
>>           0.00      67.06 us      23.64 us     555.59 us           
>>     491          LK
>>           0.01      51.71 us       7.70 us    1174.64 us          
>>     9339       FLUSH
>>           0.01      62.41 us      15.13 us     636.35 us          
>>     9011    FINODELK
>>           0.03     126.23 us      43.15 us    4760.14 us         
>>     10824       FSTAT
>>           0.03     571.94 us      94.85 us   51697.03 us          
>>     2594       MKDIR
>>           0.05     264.87 us      81.58 us   53152.06 us          
>>     9009    FXATTROP
>>           0.05     423.05 us      38.26 us  548686.55 us          
>>     5754      CREATE
>>           0.05      78.14 us      19.17 us     678.32 us         
>>     32843       WRITE
>>           0.06     526.39 us     130.84 us   41405.46 us          
>>     5798     SYMLINK
>>           0.10     133.73 us      16.25 us  676494.72 us         
>>     34904     READDIR
>>           0.12    2054.48 us      99.28 us   88061.83 us          
>>     2732       RMDIR
>>           0.21     110.60 us       1.19 us   16833.78 us         
>>     93757     OPENDIR
>>           0.72     205.89 us      33.28 us  261023.99 us        
>>     170292      UNLINK
>>           0.85    2971.45 us      21.24 us  257839.19 us         
>>     13840    READDIRP
>>           1.94     200.87 us      25.49 us  461654.32 us        
>>     468842   FTRUNCATE
>>           2.13     212.44 us      54.02 us  461878.34 us        
>>     486882 REMOVEXATTR
>>           2.27     223.00 us      52.03 us  178897.40 us        
>>     493240    SETXATTR
>>           3.53     155.32 us       7.96 us   67873.00 us       
>>     1101338    GETXATTR
>>           3.63     212.32 us      44.42 us  551264.02 us        
>>     829002        OPEN
>>           5.77      76.36 us       7.76 us  962634.73 us       
>>     3660425     ENTRYLK
>>           6.23     304.88 us      42.51 us  661394.43 us        
>>     990644     SETATTR
>>           7.81     382.20 us     107.42 us  846502.78 us        
>>     990766     XATTROP
>>          12.39     549.25 us     135.57 us 1659697.83 us       
>>     1093387       MKNOD
>>          12.47     139.78 us       9.76 us  552067.56 us       
>>     4325281     INODELK
>>          39.53     206.95 us       8.56 us  964823.33 us       
>>     9259429      LOOKUP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1856377      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     933300     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     251    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     293   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     923077   CI_FORGET
>>      
>>         Duration: 209334 seconds
>>        Data Read: 0 bytes
>>     Data Written: 32843 bytes
>>      
>>     Brick: bender:/mnt/gluster/c
>>     ---------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+
>>      No. of Reads:                    0
>>     No. of Writes:                37050
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     928119      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1401524     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     70092  RELEASEDIR
>>           0.00      19.49 us       8.28 us     180.61 us           
>>     100         IPC
>>           0.00     238.88 us     163.97 us     486.93 us            
>>     38        LINK
>>           0.00     306.43 us     196.67 us     788.36 us            
>>     30     SYMLINK
>>           0.00    2670.18 us     765.93 us    4151.64 us             
>>     4       FSYNC
>>           0.00     350.65 us     141.92 us   10573.64 us           
>>     122      RENAME
>>           0.00      67.02 us      20.66 us     453.90 us           
>>     777          LK
>>           0.00     158.32 us      64.22 us     532.21 us           
>>     810   FGETXATTR
>>           0.00     229.87 us      66.47 us     826.31 us           
>>     603    TRUNCATE
>>           0.01    1742.85 us     202.81 us   47471.71 us           
>>     302       MKDIR
>>           0.01      59.05 us      15.40 us    1813.56 us         
>>     10060    FINODELK
>>           0.01     118.54 us      36.65 us    4002.58 us          
>>     6409       FSTAT
>>           0.01      49.38 us       8.08 us    1264.41 us         
>>     21719       FLUSH
>>           0.03      74.76 us      20.86 us    2008.41 us         
>>     37050       WRITE
>>           0.04     553.12 us      40.81 us  386485.29 us          
>>     5901      CREATE
>>           0.06     534.01 us     100.86 us  527770.44 us         
>>     10057    FXATTROP
>>           0.12     138.96 us       1.00 us  601208.70 us         
>>     70092     OPENDIR
>>           0.12     947.76 us      18.54 us  712568.33 us         
>>     10779     READDIR
>>           0.15    4099.07 us     124.69 us  421939.47 us          
>>     3008       RMDIR
>>           0.61     465.30 us      20.67 us  936959.86 us        
>>     109478      UNLINK
>>           1.57     182.41 us      49.54 us   73938.09 us        
>>     722669 REMOVEXATTR
>>           1.61     171.41 us       6.98 us   83809.88 us        
>>     789294    GETXATTR
>>           1.86     217.88 us      26.40 us  556446.19 us        
>>     718835   FTRUNCATE
>>           1.89     219.47 us      49.92 us  506767.78 us        
>>     722856    SETXATTR
>>           3.02     181.66 us      44.40 us  344656.69 us       
>>     1395957        OPEN
>>           5.56     322.08 us      43.37 us  634069.61 us       
>>     1450160     SETATTR
>>           5.84     115.88 us       7.67 us  747387.51 us       
>>     4233520     ENTRYLK
>>           6.53     378.33 us     122.84 us  766939.14 us       
>>     1449601     XATTROP
>>           9.75     115.48 us      10.70 us  556675.13 us       
>>     7097226     INODELK
>>          19.37    1104.98 us     101.28 us 1612346.75 us       
>>     1472813       MKNOD
>>          41.85     295.61 us       8.98 us  996805.54 us      
>>     11896091      LOOKUP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3531139      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1862470     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     244    CI_XATTR
>>      ��    0.00       0.00 us       0.00 us       0.00 us           
>>     632   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1668669   CI_FORGET
>>      
>>         Duration: 208643 seconds
>>        Data Read: 0 bytes
>>     Data Written: 37050 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+
>>      No. of Reads:                    0
>>     No. of Writes:                37050
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     928119      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1401524     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     70092  RELEASEDIR
>>           0.00      19.49 us       8.28 us     180.61 us           
>>     100         IPC
>>           0.00     238.88 us     163.97 us     486.93 us            
>>     38        LINK
>>           0.00     306.43 us     196.67 us     788.36 us            
>>     30     SYMLINK
>>           0.00    2670.18 us     765.93 us    4151.64 us             
>>     4       FSYNC
>>           0.00     350.65 us     141.92 us   10573.64 us           
>>     122      RENAME
>>           0.00      67.02 us      20.66 us     453.90 us           
>>     777          LK
>>           0.00     158.32 us      64.22 us     532.21 us           
>>     810   FGETXATTR
>>           0.00     229.87 us      66.47 us     826.31 us           
>>     603    TRUNCATE
>>           0.01    1742.85 us     202.81 us   47471.71 us           
>>     302       MKDIR
>>           0.01      59.05 us      15.40 us    1813.56 us         
>>     10060    FINODELK
>>           0.01     118.54 us      36.65 us    4002.58 us          
>>     6409       FSTAT
>>           0.01      49.39 us       8.08 us    1264.41 us         
>>     21719       FLUSH
>>           0.03      74.77 us      20.86 us    2008.41 us         
>>     37050       WRITE
>>           0.04     553.12 us      40.81 us  386485.29 us          
>>     5901      CREATE
>>           0.06     534.01 us     100.86 us  527770.44 us         
>>     10057    FXATTROP
>>           0.12     138.96 us       1.00 us  601208.70 us         
>>     70092     OPENDIR
>>           0.12     947.76 us      18.54 us  712568.33 us         
>>     10779     READDIR
>>           0.15    4099.07 us     124.69 us  421939.47 us          
>>     3008       RMDIR
>>           0.61     465.30 us      20.67 us  936959.86 us        
>>     109478      UNLINK
>>           1.57     182.41 us      49.54 us   73938.09 us        
>>     722669 REMOVEXATTR
>>           1.61     171.41 us       6.98 us   83809.88 us        
>>     789294    GETXATTR
>>           1.86     217.88 us      26.40 us  556446.19 us        
>>     718835   FTRUNCATE
>>           1.89     219.48 us      49.92 us  506767.78 us        
>>     722856    SETXATTR
>>           3.02     181.66 us      44.40 us  344656.69 us       
>>     1395957        OPEN
>>           5.56     322.09 us      43.37 us  634069.61 us       
>>     1450160     SETATTR
>>           5.84     115.88 us       7.67 us  747387.51 us       
>>     4233520     ENTRYLK
>>           6.53     378.33 us     122.84 us  766939.14 us       
>>     1449601     XATTROP
>>           9.75     115.48 us      10.70 us  556675.13 us       
>>     7097226     INODELK
>>          19.37    1105.06 us     101.28 us 1612346.75 us       
>>     1472813       MKNOD
>>          41.84     295.54 us       8.98 us  996805.54 us      
>>     11896091      LOOKUP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     3531139      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1862470     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     244    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us           
>>     632   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1668669   CI_FORGET
>>      
>>         Duration: 208643 seconds
>>        Data Read: 0 bytes
>>     Data Written: 37050 bytes
>>      
>>     Brick: bender:/mnt/gluster/a
>>     ---------------------------------------
>>     Cumulative Stats:
>>        Block Size:                  1b+                  
>>     2b+                   8b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                   53                    
>>     1                    60
>>      
>>        Block Size:                 16b+                 
>>     32b+                  64b+
>>      No. of Reads:                    0                  
>>     235                     4
>>     No. of Writes:                   14                 
>>     1033                    15
>>      
>>        Block Size:                128b+                
>>     256b+                 512b+
>>      No. of Reads:                    4                  
>>     115                    81
>>     No. of Writes:                   58                  
>>     703                    80
>>      
>>        Block Size:               1024b+               
>>     2048b+                4096b+
>>      No. of Reads:                  181                   
>>     26                    74
>>     No. of Writes:                  163                  
>>     278                   397
>>      
>>        Block Size:               8192b+              
>>     16384b+               32768b+
>>      No. of Reads:                  131                  
>>     161                   267
>>     No. of Writes:                 7264                 
>>     1398                  6742
>>      
>>        Block Size:              65536b+             
>>     131072b+              262144b+
>>      No. of Reads:                  443                
>>     25528                     0
>>     No. of Writes:                 2426                
>>     12240                     1
>>      
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     684942      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     837092     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     87297  RELEASEDIR
>>           0.00     219.22 us     121.08 us     306.12 us             
>>     8 REMOVEXATTR
>>           0.00      21.70 us       7.24 us     196.07 us            
>>     97         IPC
>>           0.00     152.77 us      78.90 us    1059.82 us            
>>     46   FTRUNCATE
>>           0.00     295.73 us     167.10 us     606.96 us            
>>     65   FGETXATTR
>>           0.00     243.66 us     140.50 us    3392.16 us           
>>     121        LINK
>>           0.00    1216.47 us     194.37 us   23411.42 us            
>>     25     SYMLINK
>>           0.00     327.87 us     234.27 us     551.71 us           
>>     107       MKNOD
>>           0.00   36094.61 us   36094.61 us   36094.61 us             
>>     1       FSYNC
>>           0.00     219.63 us     147.34 us     783.10 us           
>>     188      RENAME
>>           0.00     104.27 us      40.34 us     595.29 us           
>>     745        STAT
>>           0.00     531.71 us     113.57 us   53973.08 us           
>>     200    TRUNCATE
>>           0.00     289.05 us      63.10 us   70107.41 us          
>>     1444     SETATTR
>>           0.00    2430.15 us     232.78 us   68120.54 us           
>>     177       MKDIR
>>           0.00      52.68 us       7.28 us     826.01 us          
>>     9890       FLUSH
>>           0.00      60.96 us      17.54 us    1393.95 us          
>>     9792    FINODELK
>>           0.00      74.26 us      20.00 us    1522.39 us         
>>     21521      STATFS
>>           0.00     129.21 us      34.15 us    9068.67 us         
>>     13094       FSTAT
>>           0.00     456.99 us     195.50 us  130182.02 us          
>>     5967      CREATE
>>           0.00     112.06 us      28.14 us    9545.53 us         
>>     27474        READ
>>           0.01     313.76 us      52.98 us   71635.74 us         
>>     32926       WRITE
>>           0.01     135.84 us       1.52 us  671373.08 us         
>>     87297     OPENDIR
>>           0.01    5225.28 us     131.28 us  951323.69 us          
>>     3177       RMDIR
>>           0.01     203.34 us      56.13 us  486756.90 us         
>>     85073    SETXATTR
>>           0.03    3521.00 us     145.28 us 3396306.00 us         
>>     15090    READDIRP
>>           0.04  113758.50 us      26.72 us 1147074.44 us           
>>     564          LK
>>           0.05      92.18 us      29.71 us   39069.99 us        
>>     850938    READLINK
>>           0.23     453.79 us      41.84 us  655999.23 us        
>>     831212        OPEN
>>           0.41   29425.34 us      19.20 us 1526187.08 us         
>>     22482     READDIR
>>           0.50    1954.70 us      21.51 us 1526772.28 us        
>>     415226      UNLINK
>>           0.54    1272.83 us       9.66 us 1604368.93 us        
>>     686945    GETXATTR
>>           0.55     237.57 us       7.91 us 1277047.91 us       
>>     3739718     ENTRYLK
>>           0.60  103888.49 us      89.32 us  761509.35 us          
>>     9311    FXATTROP
>>           2.60     909.04 us       9.68 us 2272778.49 us       
>>     4649291     INODELK
>>           5.82    1240.20 us       8.78 us 1526868.50 us       
>>     7625383      LOOKUP
>>          88.60   58005.98 us      67.31 us 1448810.06 us       
>>     2481914     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1396875      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1854     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     28    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1051   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1394996   CI_FORGET
>>      
>>         Duration: 208643 seconds
>>        Data Read: 3409342848 bytes
>>     Data Written: 2180686507 bytes
>>      
>>     Interval 0 Stats:
>>        Block Size:                  1b+                  
>>     2b+                   8b+
>>      No. of Reads:                    0                    
>>     0                     0
>>     No. of Writes:                   53                    
>>     1                    60
>>      
>>        Block Size:                 16b+                 
>>     32b+                  64b+
>>      No. of Reads:                    0                  
>>     235                     4
>>     No. of Writes:                   14                 
>>     1033                    15
>>      
>>        Block Size:                128b+                
>>     256b+                 512b+
>>      No. of Reads:                    4                  
>>     115                    81
>>     No. of Writes:                   58                  
>>     703                    80
>>      
>>        Block Size:               1024b+               
>>     2048b+                4096b+
>>      No. of Reads:                  181                   
>>     26                    74
>>     No. of Writes:                  163                  
>>     278                   397
>>      
>>        Block Size:               8192b+              
>>     16384b+               32768b+
>>      No. of Reads:                  131                  
>>     161                   267
>>     No. of Writes:                 7264                 
>>     1398                  6742
>>      
>>        Block Size:              65536b+             
>>     131072b+              262144b+
>>      No. of Reads:                  443                
>>     25528                     0
>>     No. of Writes:                 2426                
>>     12240                     1
>>      
>>      %-latency   Avg-latency   Min-Latency   Max-Latency   No. of
>>     calls         Fop
>>      ---------   -----------   -----------   -----------  
>>     ------------        ----
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     684942      FORGET
>>           0.00       0.00 us       0.00 us       0.00 us        
>>     837092     RELEASE
>>           0.00       0.00 us       0.00 us       0.00 us         
>>     87297  RELEASEDIR
>>           0.00     219.22 us     121.08 us     306.12 us             
>>     8 REMOVEXATTR
>>           0.00      21.70 us       7.24 us     196.07 us            
>>     97         IPC
>>           0.00     152.77 us      78.90 us    1059.82 us            
>>     46   FTRUNCATE
>>           0.00     295.73 us     167.10 us     606.96 us            
>>     65   FGETXATTR
>>           0.00     243.66 us     140.50 us    3392.16 us           
>>     121        LINK
>>           0.00    1216.47 us     194.37 us   23411.42 us            
>>     25     SYMLINK
>>           0.00     327.87 us     234.27 us     551.71 us           
>>     107       MKNOD
>>           0.00   36094.61 us   36094.61 us   36094.61 us             
>>     1       FSYNC
>>           0.00     219.63 us     147.34 us     783.10 us           
>>     188      RENAME
>>           0.00     104.27 us      40.34 us     595.29 us           
>>     745        STAT
>>           0.00     531.71 us     113.57 us   53973.08 us           
>>     200    TRUNCATE
>>           0.00     289.05 us      63.10 us   70107.41 us          
>>     1444     SETATTR
>>           0.00    2430.15 us     232.78 us   68120.54 us           
>>     177       MKDIR
>>           0.00      52.69 us       7.28 us     826.01 us          
>>     9890       FLUSH
>>           0.00      60.96 us      17.54 us    1393.95 us          
>>     9792    FINODELK
>>           0.00      74.25 us      20.00 us    1522.39 us         
>>     21521      STATFS
>>           0.00     129.23 us      34.15 us    9068.67 us         
>>     13094       FSTAT
>>           0.00     456.99 us     195.50 us  130182.02 us          
>>     5967      CREATE
>>           0.00     112.45 us      28.14 us    9545.53 us         
>>     27474        READ
>>           0.01     313.77 us      52.98 us   71635.74 us         
>>     32926       WRITE
>>           0.01     135.84 us       1.52 us  671373.08 us         
>>     87297     OPENDIR
>>           0.01    5225.28 us     131.28 us  951323.69 us          
>>     3177       RMDIR
>>           0.01     203.34 us      56.13 us  486756.90 us         
>>     85073    SETXATTR
>>           0.03    3521.00 us     145.28 us 3396306.00 us         
>>     15090    READDIRP
>>           0.04  113758.50 us      26.72 us 1147074.44 us           
>>     564          LK
>>           0.05      92.18 us      29.71 us   39069.99 us        
>>     850938    READLINK
>>           0.23     453.79 us      41.84 us  655999.23 us        
>>     831212        OPEN
>>           0.41   29425.34 us      19.20 us 1526187.08 us         
>>     22482     READDIR
>>           0.50    1954.70 us      21.51 us 1526772.28 us        
>>     415226      UNLINK
>>           0.54    1272.79 us       9.66 us 1604368.93 us        
>>     686945    GETXATTR
>>           0.55     237.57 us       7.91 us 1277047.91 us       
>>     3739718     ENTRYLK
>>           0.60  103888.49 us      89.32 us  761509.35 us          
>>     9311    FXATTROP
>>           2.60     909.04 us       9.68 us 2272778.49 us       
>>     4649291     INODELK
>>           5.82    1240.10 us       8.78 us 1526868.50 us       
>>     7625383      LOOKUP
>>          88.60   58006.02 us      67.31 us 1448810.06 us       
>>     2481914     XATTROP
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1396875      UPCALL
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1854     CI_IATT
>>           0.00       0.00 us       0.00 us       0.00 us            
>>     28    CI_XATTR
>>           0.00       0.00 us       0.00 us       0.00 us          
>>     1051   CI_UNLINK
>>           0.00       0.00 us       0.00 us       0.00 us       
>>     1394996   CI_FORGET
>>      
>>         Duration: 208643 seconds
>>        Data Read: 3409342848 bytes
>>     Data Written: 2180686507 bytes
>>      
>>
>>     ________
>>
>>
>>
>>     Community Meeting Calendar:
>>
>>     Schedule -
>>     Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC
>>     Bridge: https://bluejeans.com/441850968
>>
>>     Gluster-users mailing list
>>     Gluster-users at gluster.org <mailto:Gluster-users at gluster.org>
>>     https://lists.gluster.org/mailman/listinfo/gluster-users
>>
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