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 > 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 further. Regards -- Harshavardhana Gluster Inc - http://www.gluster.com +1(408)-770-1887, Ext-113 +1(408)-480-1730