On Mon, 2009-05-11 at 13:35 -0700, Hayes, Robert N wrote: > While performing a single copy, single client write/read test using > dd, we are finding that our Nehalem clients running > > 2.6.18-92.1.10.el5-lustre-1.6.5.1 > > write about half the speed of our Nehalem clients running > > 2.6.18-53.1.13.el5_lustre.1.6.4.3 to three different lustre file > systems.
We've seen a fairly substantial block-level device throughput regression going from -53 to -92 without involving Lustre, but I've not yet had time to run down the changes to see what could be causing it. -- Dave Dillow National Center for Computational Science Oak Ridge National Laboratory (865) 241-6602 office _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
