X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [64.117.224.193]) by svr1.postgresql.org (Postfix) with ESMTP id E7E9E3109F7 for ; Mon, 30 Jun 2003 16:02:32 +0000 (GMT) Received: from svr1.postgresql.org ([64.117.224.193]) by localhost (svr1.postgresql.org [64.117.224.193]) (amavisd-new, port 10024) with ESMTP id 07396-06 for ; Mon, 30 Jun 2003 13:02:22 -0300 (ADT) Received: from irko.smoothcorp.com (unknown [208.49.241.41]) by svr1.postgresql.org (Postfix) with ESMTP id CD052310958 for ; Mon, 30 Jun 2003 13:02:21 -0300 (ADT) Received: from jgardner.ifloor.com ([10.0.1.63]) by irko.smoothcorp.com with esmtp (Exim 4.12) id 19X16b-0004pF-00; Mon, 30 Jun 2003 09:02:13 -0700 Received: from jgardner.ifloor.com (localhost.localdomain [127.0.0.1]) by jgardner.ifloor.com (8.12.8/8.12.8) with ESMTP id h5UG2EHK021969; Mon, 30 Jun 2003 09:02:14 -0700 Received: from localhost (localhost [[UNIX: localhost]]) by jgardner.ifloor.com (8.12.8/8.12.8/Submit) id h5UG2DWq021967; Mon, 30 Jun 2003 09:02:13 -0700 From: Jonathan Gardner To: "scott.marlowe" , Patrick Hatcher Subject: Re: Memory question Date: Mon, 30 Jun 2003 09:02:12 -0700 User-Agent: KMail/1.5 Cc: References: In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Description: clearsigned data Content-Disposition: inline Message-Id: <200306300902.13161.jgardner@jonathangardner.net> X-SA-Exim-Rcpt-To: scott.marlowe@ihs.com, PHatcher@macys.com, pgsql-performance@postgresql.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Archive-Number: 200306/206 X-Sequence-Number: 2290 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Friday 27 June 2003 12:44, scott.marlowe wrote: > This is actually normal. Look at the amount cached: 6257620K. That's > 6.2Gig of cache. Linux is using only 6517776k - 6257620k of memory, the > rest is just acting as kernel cache. If anything tries to allocate a bit > of memory, linux will flush enough cache to give the memory to the > application that needs it. > I think it is appropriate to add that the Linux kernel does this in an=20 extremely innovative and intelligent way. The more room you give your kerne= l=20 to cache, the more responsive it is going to be. - --=20 Jonathan Gardner (was jgardn@alumni.washington.edu) Live Free, Use Linux! -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQE/AF8EWgwF3QvpWNwRArmVAJwK5C2ExmS8Rayrne33UJ0KZZM4UgCgq7b5 3J1LGtofgtnKq/bPtF75lNI=3D =3D4Not -----END PGP SIGNATURE-----