[Gluster-users] GlusterFS performance

[John Smith]

For what its worth : This is what I get in a 1CPU 2GBRAM Vmware guest
VM thats running on my desktop. '/tmp' is a 'local' xfs lvm2 fs, and
'/mnt/glusterfs/0/' is a glusterfs mountpoint, where servernode and
clientnode are the same vm. Not blazingly fast as its a vm on a
desktop, but noticably slower than doing a comparable 'cp' on a
non-glusterfs mountpoint.

- John Smith


# gluster volume profile patchy start
Starting volume profile on patchy has been successful
[root at host1 glusterfs]# dd if=/dev/zero of=/tmp/1GB bs=1GB count=1
1+0 records in
1+0 records out
1000000000 bytes (1.0 GB) copied, 12.7146 s, 78.6 MB/s
# time cp /tmp/1GB /tmp/1GB.1

real    0m17.574s
user    0m0.014s
sys     0m6.142s
# time cp /tmp/1GB /mnt/glusterfs/0/

real    0m24.628s
user    0m0.019s
sys     0m7.736s
[root at host1 glusterfs]# gluster volume profile patchy info
Brick: host1.localdomain:/d/backends/patchy
-------------------------------------------
Cumulative Stats:
   Block Size:              32768b+              131072b+              262144b+
 No. of Reads:                    0                     0                     0
No. of Writes:                    1                  7625                     2

 %-latency   Avg-latency   Min-Latency   Max-Latency   No. of calls         Fop
 ---------   -----------   -----------   -----------   ------------        ----
      0.00       0.00 us       0.00 us       0.00 us              1     RELEASE
      0.00       0.00 us       0.00 us       0.00 us              1  RELEASEDIR
      0.00      58.00 us      56.00 us      60.00 us              2      STATFS
      0.00     177.00 us     177.00 us     177.00 us              1       FLUSH
      0.01     793.00 us     793.00 us     793.00 us              1      CREATE
      0.01     127.22 us      45.00 us     394.00 us              9      LOOKUP
     99.98    1292.19 us     177.00 us  200453.00 us           7628       WRITE

    Duration: 76 seconds
   Data Read: 0 bytes
Data Written: 1000000000 bytes

Interval 0 Stats:
   Block Size:              32768b+              131072b+              262144b+
 No. of Reads:                    0                     0                     0
No. of Writes:                    1                  7625                     2

 %-latency   Avg-latency   Min-Latency   Max-Latency   No. of calls         Fop
 ---------   -----------   -----------   -----------   ------------        ----
      0.00       0.00 us       0.00 us       0.00 us              1     RELEASE
      0.00       0.00 us       0.00 us       0.00 us              1  RELEASEDIR
      0.00      58.00 us      56.00 us      60.00 us              2      STATFS
      0.00     177.00 us     177.00 us     177.00 us              1       FLUSH
      0.01     793.00 us     793.00 us     793.00 us              1      CREATE
      0.01     127.22 us      45.00 us     394.00 us              9      LOOKUP
     99.98    1292.19 us     177.00 us  200453.00 us           7628       WRITE

    Duration: 76 seconds
   Data Read: 0 bytes
Data Written: 1000000000 bytes