[Gluster-devel] 3.7.8 client is slow

[Oleksandr Natalenko]

David,

could you please cross-post your observations to the following bugreport:

https://bugzilla.redhat.com/show_bug.cgi?id=1309462

?

It seems you have faced similar issue.

On понеділок, 22 лютого 2016 р. 16:46:01 EET David Robinson wrote:
> The 3.7.8 FUSE client is significantly slower than 3.7.6.  Is this
> related to some of the fixes that were done to correct memory leaks?  Is
> there anything that I can do to recover the performance of 3.7.6?
> 
> My testing involved creating a "bigfile" that is 20GB.  I then installed
> the 3.6.6 FUSE client and tested the copy of the bigfile from one
> gluster machine to another.  The test was repeated 2x to make sure cache
> wasn't affect performance.
> 
> Using Centos7.1
> FUSE 3.6.6 took 47-seconds and 38-seconds.
> FUSE 3.7.6 took 43-seconds and 34-seconds.
> FUSE 3.7.8 took 205-seconds and 224-seconds
> 
> I repeated the test on another machine that is running centos 6.7 and
> the results were even worse.  98-seconds for FUSE 3.6.6 versus
> 575-seconds for FUSE 3.7.8.
> 
> My server setup is:
> 
> Volume Name: gfsbackup
> Type: Distribute
> Volume ID: 29b8fae9-dfbf-4fa4-9837-8059a310669a
> Status: Started
> Number of Bricks: 2
> Transport-type: tcp
> Bricks:
> Brick1: ffib01bkp:/data/brick01/gfsbackup
> Brick2: ffib01bkp:/data/brick02/gfsbackup
> Options Reconfigured:
> performance.readdir-ahead: on
> cluster.rebal-throttle: aggressive
> diagnostics.client-log-level: WARNING
> diagnostics.brick-log-level: WARNING
> changelog.changelog: off
> client.event-threads: 8
> server.event-threads: 8
> 
> David
> 
> 
> 
> ========================
> 
> 
> 
> David F. Robinson, Ph.D.
> 
> President - Corvid Technologies
> 
> 145 Overhill Drive
> 
> Mooresville, NC 28117
> 
> 704.799.6944 x101   [Office]
> 
> 704.252.1310           [Cell]
> 
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> 
> david.robinson at corvidtec.com
> 
> http://www.corvidtec.com