[Gluster-users] GlusterFS performance
John Smith
lbalbalba at gmail.com
Thu May 23 18:36:08 UTC 2013
crap i messed up the cut n paste... nevermind...
the summary: dd 'local' to 'local' vs cp 'local' to 'glusterfs', on
the same machine: local was seconds faster.
- John Smith
On Thu, May 23, 2013 at 4:40 PM, John Smith <lbalbalba at gmail.com> wrote:
> 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
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