From: | Michael Monnerie <michael(dot)monnerie(at)is(dot)it-management(dot)at> |
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To: | pgsql-admin(at)postgresql(dot)org |
Subject: | Re: Is IDLE session really idle? |
Date: | 2009-06-15 20:35:54 |
Message-ID: | 200906152235.55192@zmi.at |
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Lists: | pgsql-admin |
On Montag 15 Juni 2009 Igor Polishchuk wrote:
> I see two ways to solve the problem.:
Why not just increase
vm.swappiness = 100
in /etc/sysctl.conf, and/or use ramzswap? That will swap out unneeded
memory very fast, and free it for use by others.
There was an article on lwn.net recently:
http://lwn.net/SubscriberLink/334649/76bbe60a81cfc7f5/
( Compcache: in-memory compressed swapping )
If installed it on several servers, and my desktop. quite nice:
Compresses 2GB to 512MB on my desktop, or 494MB to 186MB on a server.
Even if staying with "normal" swap, increasing the swappiness can
quickly free memory, but swap I/O might slow things down, depending on
your setup.
mfg zmi
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