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Date:      Sat, 02 Oct 2010 13:56:46 +0200
From:      "Bas Smeelen" <b.smeelen@ose.nl>
To:        freebsd-questions@freebsd.org
Subject:   Re: Cache Memory in top command
Message-ID:  <20101002115646.12b2e032@mail.ose.nl>
In-Reply-To: <4CA48649.8090605@ose.nl>

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=5F=5F=5F=5F=5F =20

From=3A Bas Smeelen =5Bmailto=3Ab=2Esmeelen=40ose=2Enl=5D
To=3A freebsd-questions=40freebsd=2Eorg
Sent=3A Thu=2C 30 Sep 2010 14=3A44=3A57 +0200
Subject=3A Re=3A Cache Memory in top command

On 09/30/2010 01=3A37 PM=2C RW wrote=3A
  =3E On Thu=2C 30 Sep 2010 09=3A24=3A58 +0200
  =3E Bas Smeelen =3Cb=2Esmeelen=40ose=2Enl=3E wrote=3A
  =3E
  =3E
  =3E  =20
  =3E=3E *Wired=3A* number of pages wired down=2C including cached file dat=
a pages
  =3E=3E    =20
  =3E That refers to buffer pages =28displayed as Buf=29=2C which are a sub=
set of
  =3E the cached file data pages=2E
  =3E
  =3E The pages in the cache queue are not specifically cached file data
  =3E pages=2C they are clean pages from any source=2C including pages that=
 have
  =3E been written to swap=2E

  Thanks=2E I got this completely wrong=2C though I have read the FAQ a few=
 years ago=2E
http=3A//www=2Efreebsd=2Eorg/doc/en=5FUS=2EISO8859-1/books/faq/misc=2Ehtml=
=23TOP-FREEMEM
The values shown by top=281=29 labeled as Inact=2C Cache=2C and Buf are all=
 cached data at different aging levels=2E =20


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