From: Jon Brisbin <jon.brisbin@npcinternational.com>
To: pgsql-performance@postgresql.org
Subject: Re: Performance on SUSE w/ reiserfs
Date: Mon, 10 Oct 2005 17:15:27 -0500
Message-ID: <434AE7FF.4000705@npcinternational.com> (raw)
In-Reply-To: <6247.1128981289@sss.pgh.pa.us>
References: <434ADD46.5060206@npcinternational.com>
<6247.1128981289@sss.pgh.pa.us>
Tom Lane wrote:
>
> Are you sure it's not cached data pages, rather than cached inodes?
> If so, the above behavior is *good*.
>
> People often have a mistaken notion that having near-zero free RAM means
> they have a problem. In point of fact, that is the way it is supposed
> to be (at least on Unix-like systems). This is just a reflection of the
> kernel doing what it is supposed to do, which is to use all spare RAM
> for caching recently accessed disk pages. If you're not swapping then
> you do not have a problem.
Except for the fact that my Java App server crashes when all the
available memory is being used by caching and not reclaimed :-)
If it wasn't for the app server going down, I probably wouldn't care.
--
Jon Brisbin
Webmaster
NPC International, Inc.
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To: pgsql-performance@postgresql.org
Cc: jon.brisbin@npcinternational.com
Subject: Re: Performance on SUSE w/ reiserfs
In-Reply-To: <434AE7FF.4000705@npcinternational.com>
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