Cache Memory in top command
b.smeelen at ose.nl
Sat Oct 2 11:56:50 UTC 2010
From: Bas Smeelen [mailto:b.smeelen at ose.nl]
To: freebsd-questions at freebsd.org
Sent: Thu, 30 Sep 2010 14:44:57 +0200
Subject: Re: Cache Memory in top command
On 09/30/2010 01:37 PM, RW wrote:
> On Thu, 30 Sep 2010 09:24:58 +0200
> Bas Smeelen <b.smeelen at ose.nl> wrote:
>> *Wired:* number of pages wired down, including cached file data pages
> That refers to buffer pages (displayed as Buf), which are a subset of
> the cached file data pages.
> The pages in the cache queue are not specifically cached file data
> pages, they are clean pages from any source, including pages that have
> been written to swap.
Thanks. I got this completely wrong, though I have read the FAQ a few years ago.
The values shown by top(1) labeled as Inact, Cache, and Buf are all cached data at different aging levels.
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