done
------ Original Message ------
From: "Oleksandr Natalenko" <oleksandr@xxxxxxxxxxxxxx>
To: gluster-users@xxxxxxxxxxx; "David Robinson"
<drobinson@xxxxxxxxxxxxx>
Cc: "Gluster Devel" <gluster-devel@xxxxxxxxxxx>
Sent: 2/22/2016 1:12:01 PM
Subject: Re: [Gluster-devel] 3.7.8 client is slow
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]
704.799.7974 [Fax]
david.robinson@xxxxxxxxxxxxx
http://www.corvidtec.com
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