From owner-freebsd-questions@FreeBSD.ORG Thu May 30 19:38:44 2013 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 5AC02D48 for ; Thu, 30 May 2013 19:38:44 +0000 (UTC) (envelope-from freebsd-questions@m.gmane.org) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) by mx1.freebsd.org (Postfix) with ESMTP id 1E852C2 for ; Thu, 30 May 2013 19:38:43 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Ui8gM-0004D4-TD for freebsd-questions@freebsd.org; Thu, 30 May 2013 21:38:42 +0200 Received: from 79-139-19-75.prenet.pl ([79.139.19.75]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 May 2013 21:38:42 +0200 Received: from jb.1234abcd by 79-139-19-75.prenet.pl with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 30 May 2013 21:38:42 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-questions@freebsd.org From: jb Subject: Re: "swap" partition leads to instability? Date: Thu, 30 May 2013 19:38:25 +0000 (UTC) Lines: 21 Message-ID: References: <1369558712.96152.YahooMailNeo@web165006.mail.bf1.yahoo.com> <20130529133516.295084a6@gumby.homeunix.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: sea.gmane.org User-Agent: Loom/3.14 (http://gmane.org/) X-Loom-IP: 79.139.19.75 (Mozilla/5.0 (X11; Linux i686; rv:21.0) Gecko/20100101 Firefox/21.0) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 30 May 2013 19:38:44 -0000 RW googlemail.com> writes: > > On Sun, 26 May 2013 12:36:42 +0000 (UTC) > jb wrote: > > > But, swapping is also a symptom, not a problem. > > It is never a good idea to let it get to that point. > > No, there are thing that are better on disk than in memory. The most > common example is tmpfs. It's much better that files left on tmpfs can > sent to disk rather tying up physical memory indefinitely. Yup, tmpfs - in virtual memory. That's an unfortunate excuse. But before its content are swapped out, the critical system like a server will be destabilized and show lame performance. The tmp-on-tmpfs has so many disadvantages that it is difficult to count and follow all of them. jb