[Gluster-users] tuning glusterfs?

[Jiann-Ming Su]

I ran a simple bonnie++ benchmark on 3.0.0.  The read performance
through FUSE is horrible.  Are there some parameters that can be tuned
to improve read performance?

GlusterFS:

Version  1.96       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
localhost.loc 2000M     4  31 23901  30  1632  13     3  33  6289  11  68.9   8
Latency              7834ms     140ms     340ms    7767ms     543ms     757ms
Version  1.96       ------Sequential Create------ --------Random Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16   148  14  1365  27   234  18   123  16   350  18   134  10
Latency               123ms   22783us     123ms     297ms   19895us     157ms


Locate ext3 filesystem:

Version  1.96       ------Sequential Output------ --Sequential Input- --Random-
Concurrency   1     -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
localhost.loc 2000M    74  99 39432  12 27308  10   836  99 65104   9 351.5  11
Latency               179ms    1207ms     429ms     109ms     109ms     215ms
Version  1.96       ------Sequential Create------ --------Random Create--------
localhost.localdoma -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 23991  81 +++++ +++ +++++ +++ 17007  57 +++++ +++ +++++ +++
Latency              1276us    1189us     787us    1183us     438us    2813us


-- 
Jiann-Ming Su
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