On Thu, Oct 08, 2009 at 03:37:39PM -0500, Kevin Grittner wrote: > Justin T Pryzby <justinp@xxxxxxxxxxxxxx> wrote: > > On Thu, Oct 08, 2009 at 10:49:37AM -0700, Joshua D. Drake wrote: > >> Did your scheduler change between the kernel versions? > > No, it's deadline for both. > > How about write barriers? I had a kernel upgrade which turned them on Doesn't seem to be that either :( [ 55.120073] Filesystem "dm-0": Disabling barriers, trial barrier write failed crb2-db2 (254, 0) /dev/mapper/crb2-db2 on /media/database Justin -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance