Date: Wed, 29 Sep 2010 12:42:30 +0100 From: Bruce Cran <bruce@cran.org.uk> To: Bas Smeelen <b.smeelen@ose.nl> Cc: freebsd-questions@freebsd.org, vyaaghrah-nix@yahoo.com Subject: Re: Cache Memory in top command Message-ID: <20100929124230.00004796@unknown> In-Reply-To: <4CA2E345.7070006@ose.nl> References: <800348.43799.qm@web113901.mail.gq1.yahoo.com> <AANLkTinxG2k082x=PQoHAq1d8h_Wn0vUwiXO1cssy4Er@mail.gmail.com> <246095.42115.qm@web113905.mail.gq1.yahoo.com> <4CA2E345.7070006@ose.nl>
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On Wed, 29 Sep 2010 08:57:09 +0200 Bas Smeelen <b.smeelen@ose.nl> wrote: > *Cache:* number of clean pages caching data that are available for > immediate reallocation > http://www.freebsd.org/cgi/man.cgi?query=top&sektion=1 > <http://www.freebsd.org/cgi/man.cgi?query=top&sektion=1>; I believe the "Cache" value is almost totally unrelated to the amount of memory used for caching: FreeBSD has a unified buffer cache so any memory is available for use as cache. Unlike Linux, you can't look at the line in 'top' to see how much memory is being used for buffers and cache. You can find more information about the VM architecture at http://www.freebsd.org/doc/en/books/arch-handbook/vm.html . -- Bruce Cran
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