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Re: BUG #4575: All page cache in shared_buffers pinned (duplicated by OS, always)

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Scott Carey" <scott(at)richrelevance(dot)com>
Cc: pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #4575: All page cache in shared_buffers pinned (duplicated by OS, always)
Date: 2008-12-11 13:57:44
Message-ID: 6296.1229003864@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-bugs
"Scott Carey" <scott(at)richrelevance(dot)com> writes:
> I have determined that nearly every cached page within shared_buffers is
> being pinned in memory, preventing the OS from dropping any such pages from
> its page cache.

Shouldn't you be complaining to kernel folk rather than here?
What do you think we could do about it?

(I'm not convinced that you're seeing anything except a
platform-specific vagary in how "top" counts things, anyway.)

			regards, tom lane

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Next:From: Scott CareyDate: 2008-12-11 16:31:21
Subject: Re: BUG #4575: All page cache in shared_buffers pinned (duplicated by OS, always)
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Subject: Re: BUG #4575: All page cache in shared_buffers pinned (duplicated by OS, always)

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