On Thu, May 28, 2009 at 7:04 PM, Fabrix <fabrixio1@xxxxxxxxx> wrote: >> I would ask for your kernel version. uname -a please? > > sure, and thanks for you answer Flavio... > > uname -a > Linux SERVIDOR-A 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:15 EDT 2008 x86_64 > x86_64 x86_64 GNU/Linux > > cat /etc/redhat-release > Red Hat Enterprise Linux Server release 5.2 (Tikanga) I'm running the same thing for an 8 core opteron (dual x4) and I have gotten better numbers from later distros (ubuntu 8.04 and 8.10) but I just don't trust them yet as server OSes for a database. >> It was possible to make the context work better with 2.4.24 with kswapd >> patched around here. 1600 connections working fine at this moment. > > 2.4 is very old, or not? I'm sure he meant 2.6.24 There's been a LOT of work on the stuff that was causing context swtich storms from the 2.6.18 to the latest 2.6 releases. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance