[Bugs] [Bug 1309462] Upgrade from 3.7.6 to 3.7.8 causes massive drop in write performance. Fresh install of 3.7.8 also has low write performance

bugzilla at redhat.com bugzilla at redhat.com
Wed Feb 24 11:09:57 UTC 2016


Poornima G <pgurusid at redhat.com> changed:

           What    |Removed                     |Added
                 CC|                            |tavis at eventbase.com
              Flags|                            |needinfo?(tavis at eventbase.c
                   |                            |om)

--- Comment #17 from Poornima G <pgurusid at redhat.com> ---
If the performance didn't improve with the workaround suggested, then can you
provide us with the profile info of the volume, for the I/O workload you are
testing. Volume profile can be taken using the following command:

1. gluster vol profile <vol-name> start
2. IO from the mount point
/* server profile info */
3. gluster vol profile <vol-name> info
/* client profile info */
4. setfattr -n trusted.io-stats-dump -v /tmp/io-stats-pre.txt /your/mountpoint
5. gluster vol profile <vol-name> stop

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