Le vendredi 07 ao?t 2009 ? 12:11 +0200, Julien Cornuwel a ?crit : > > I'm doing some performance tests with bonnie (1.03d) on GlusterFS 2.0.4 > > (Debian packages). > > > > Write tests went OK. > > But on the rewrite test, bonnie seemed to hang. Load average dropped to > > 0.00 on both nodes. Nothing in server or client logs. > > > > Any idea what could cause that ? > Write performances are surprisingly high, better than local disks ! I > guess writebehind translator is doing a great job. But reads are so > slow ! I will do another test with readahead enabled to see the > difference, hoping bonnie will survive it. Well, no luck. Adding the readahead translator made bonnie hang at the same moment : # bonnie -d /test -u user Using uid:1000, gid:1000. Writing with putc()...done Writing intelligently...done Rewriting... And nothing more : load average dropped at 0.00, 0.00, 0.00, so I guess bonnie is waiting for something that will never come... Client log says nothing except the attachment to remote volumes. Server log says nothing except initial client connections.
