From owner-freebsd-questions Sat Nov 16 10:25:33 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8A1C637B401 for ; Sat, 16 Nov 2002 10:25:32 -0800 (PST) Received: from rwcrmhc52.attbi.com (rwcrmhc52.attbi.com [216.148.227.88]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2244843E77 for ; Sat, 16 Nov 2002 10:25:32 -0800 (PST) (envelope-from swear@attbi.com) Received: from localhost.localdomain ([12.242.158.67]) by rwcrmhc52.attbi.com (InterMail vM.4.01.03.27 201-229-121-127-20010626) with ESMTP id <20021116182530.CBNX1052.rwcrmhc52.attbi.com@localhost.localdomain>; Sat, 16 Nov 2002 18:25:30 +0000 Received: from localhost.localdomain (localhost [127.0.0.1]) by localhost.localdomain (8.12.6/8.12.5) with ESMTP id gAGINFd8017975; Sat, 16 Nov 2002 10:23:16 -0800 (PST) (envelope-from swear@attbi.com) Received: (from jojo@localhost) by localhost.localdomain (8.12.6/8.12.5/Submit) id gAGIN9E2017972; Sat, 16 Nov 2002 10:23:09 -0800 (PST) (envelope-from swear@attbi.com) X-Authentication-Warning: localhost.localdomain: jojo set sender to swear@attbi.com using -f To: Jerry McAllister Cc: jonas@netwood.net (Jonas Fornander), FreeBSD-Questions@FreeBSD.ORG ('FreeBSD LIST') Subject: Re: Running out of swap space????? References: <200211152201.gAFM1ha27744@clunix.cl.msu.edu> From: swear@attbi.com (Gary W. Swearingen) Date: 16 Nov 2002 10:23:09 -0800 In-Reply-To: <200211152201.gAFM1ha27744@clunix.cl.msu.edu> Message-ID: Lines: 12 User-Agent: Gnus/5.0808 (Gnus v5.8.8) XEmacs/21.1 (Cuyahoga Valley) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Jerry McAllister writes: > Sort of true, though real memory is still different from swap and a > busy system wth a lot of processes hanging around can use a lot of swap > even when it isn't killing real memory. The fact that the system CAN or DOES use a lot of swap doesn't mean that it NEEDS to use a lot of swap or that it buys you much. It can just be hanging on to data in case it will need it in the future; often it will never need it and even when it does, the time saved is negligible in most cases and definitely so when devising rules of thumb (because you don't devise them to support efficient thrashing). To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message