From: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com> |
---|---|
To: | Fabrix <fabrixio1(at)gmail(dot)com> |
Cc: | Flavio Henrique Araque Gurgel <flavio(at)4linux(dot)com(dot)br>, pgsql-performance <pgsql-performance(at)postgresql(dot)org> |
Subject: | Re: Scalability in postgres |
Date: | 2009-05-29 01:16:27 |
Message-ID: | dcc563d10905281816y2814029en3b31e7ec8760434e@mail.gmail.com |
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Lists: | pgsql-performance |
On Thu, May 28, 2009 at 7:04 PM, Fabrix <fabrixio1(at)gmail(dot)com> 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.
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