Re: H800 + md1200 Performance problem - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: H800 + md1200 Performance problem
Date
Msg-id CAOR=d=193fmu6=H0Um-OxMTVbNxBK9ucSoqyyExQSRJ-LJ++cQ@mail.gmail.com
Whole thread Raw
In response to Re: H800 + md1200 Performance problem  (Claudio Freire <klaussfreire@gmail.com>)
Responses Re: H800 + md1200 Performance problem
List pgsql-performance
On Wed, Apr 4, 2012 at 10:28 AM, Claudio Freire <klaussfreire@gmail.com> wrote:
> On Wed, Apr 4, 2012 at 1:22 PM, Scott Marlowe <scott.marlowe@gmail.com> wrote:
>> Even with fairly late model linux kernels (i.e.
>> 10.04 LTS through 11.04) I've watched the kswapd start up swapping
>> hard on a machine with zero memory pressure and no need for swap.
>> Took about 2 weeks of hard running before kswapd decided to act
>> pathological.
>
> Perhaps you had some overfull partitions in tmpfs?

Nope.  Didn't use tmpfs for anything on that machine.  Stock Ubuntu
10.04 with Postgres just doing simple but high traffic postgres stuff.

pgsql-performance by date:

Previous
From: Claudio Freire
Date:
Subject: Re: H800 + md1200 Performance problem
Next
From: Tomas Vondra
Date:
Subject: Re: about multiprocessingmassdata