Re: can shared cache be swapped to disk?

From: Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr>
To: Jeff Janes <jeff(dot)janes(at)gmail(dot)com>
Cc: Martijn van Oosterhout <kleptog(at)svana(dot)org>, flyusa2010 fly <flyusa2010(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: can shared cache be swapped to disk?
Date: 2011-01-05 21:25:22
Message-ID: m2tyhnhwl9.fsf@2ndQuadrant.fr
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Jeff Janes <jeff(dot)janes(at)gmail(dot)com> writes:
> ("top" doesn't distinguish between memory that has been requested but
> never accessed, versus memory that has been accessed and then truly
> swapped out to disk. So unless you first let it run to steady-state
> before applying pressure, it is hard to interpret the results.)

Would exmap be helping you here?

http://www.berthels.co.uk/exmap/

Regards,
--
Dimitri Fontaine
http://2ndQuadrant.fr PostgreSQL : Expertise, Formation et Support

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