On Nov 26, 2007 5:00 PM, Alexander Staubo <alex@xxxxxxxxxxxxxxx> wrote: > On 11/26/07, Damon Hart <dhcom@xxxxxxxxxxx> wrote: > > So, what's different between these tests? I'm seeing performance > > differences of between +65% to +90% transactions per second of the > > OpenVZ kernel running on the HN over the stock Fedora 8 kernel. Is > > this reflective of different emphasis between RHEL and Fedora kernel > > builds? Some OpenVZ optimization on top of the RHEL5 build? Something > > else? Where should I look? > > A recent FreeBSD benchmark (which also tested Linux performance) found > major performance differences between recent versions of the kernel, > possibly attributable to the new so-called completely fair scheduler: > > http://archives.postgresql.org/pgsql-performance/2007-11/msg00132.php Yeah, I wondered about that too, but thought the completely fair scheduler was not on by default so didn't mention it. Hmmm. I wonder. ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly
