Re: H800 + md1200 Performance problem

From: Claudio Freire <klaussfreire(at)gmail(dot)com>
To: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
Cc: Tomas Vondra <tv(at)fuzzy(dot)cz>, pgsql-performance(at)postgresql(dot)org
Subject: Re: H800 + md1200 Performance problem
Date: 2012-04-04 16:28:44
Message-ID: CAGTBQpYYP6bS8NN1M_VU-OpHAGuSf=uWP-v2D8f7jMgCFJD9Sg@mail.gmail.com
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On Wed, Apr 4, 2012 at 1:22 PM, Scott Marlowe <scott(dot)marlowe(at)gmail(dot)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?

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