[Gluster-users] Performance

Harshavardhana harsha at gluster.com
Mon Jun 7 23:03:51 UTC 2010

On 06/07/2010 02:36 PM, Todd Daugherty wrote:
> I included a bunch of other info. If there is anything else that will
> help solve this problem I am very interested in getting to the bottom
> of this. Side note I built a GlusterFS cluster (2.0.9) from RAM disks
> (10 gig /dev/ram0 bricks) That performs quite well but still much less
> than the backend /dev/ram0 bricks.
> Todd

      You need to increase the writebehind value to 8MB on each client 
volfile and read-ahead "page-count" to 8.

       Also set vm.swappiness = 0 through sysctl on both of the servers.

       Let us know how the performance shows, then we can tune things 


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