From owner-freebsd-questions@FreeBSD.ORG Tue May 28 18:47:21 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 900D88E2 for ; Tue, 28 May 2013 18:47:21 +0000 (UTC) (envelope-from fred.morcos@gmail.com) Received: from mail-wg0-x235.google.com (mail-wg0-x235.google.com [IPv6:2a00:1450:400c:c00::235]) by mx1.freebsd.org (Postfix) with ESMTP id 29478E98 for ; Tue, 28 May 2013 18:47:21 +0000 (UTC) Received: by mail-wg0-f53.google.com with SMTP id m15so5789535wgh.20 for ; Tue, 28 May 2013 11:47:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=8/SWjDFy1uW3TeGeCW9JznUqyv4p9rjPC7EBooEGDGc=; b=AsBO/rFY42C9z5mD4r1ToS3SVFkt7q/9yzF84cov+Fz61yujXd98txsvQSsWm5/BIA 70ag94q1hfU/nqmeTdYHdExYaesiBV9ClIDiwwG77PS5My0WP4VfAesHaI7X48p9Js57 DoKVkmBSwFquqwYQaxeNHvREWI80NOzjXhEYyxiiSQ3DW2Z/jVO5OjWmpq4mX7x+2OWx 1HOkUGf6RohrufCA2o3UizAEz+1edMYhEpUE0ly/1ZWUSW3EXhPBH6fbM+pHFkqO/CJb gHWKpVT5XQ9EYi5GHL4g/O0hkOmJ4P+P+yPd6imSLHrm0aEUqz3jWXMK1wmPdRJsB8iH 7uHQ== X-Received: by 10.180.39.233 with SMTP id s9mr13269134wik.25.1369766840191; Tue, 28 May 2013 11:47:20 -0700 (PDT) MIME-Version: 1.0 Received: by 10.216.193.138 with HTTP; Tue, 28 May 2013 11:46:49 -0700 (PDT) In-Reply-To: References: <1369558712.96152.YahooMailNeo@web165006.mail.bf1.yahoo.com> <1369644392.92027.YahooMailNeo@web165003.mail.bf1.yahoo.com> From: Fred Morcos Date: Tue, 28 May 2013 20:46:49 +0200 Message-ID: Subject: Re: "swap" partition leads to instability? To: jb Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: FreeBSD Questions 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: Tue, 28 May 2013 18:47:21 -0000 On Tue, May 28, 2013 at 8:42 PM, jb wrote: > Follow up comment. > > It has been pointed out to me that there is Varnish software taking > advantage > of system VMM and swap space. > > Well, there are cache-oblivious algorithms that perform as well, and so > they > make the above (disk access model; cache-aware model) unnecessary > (obsolete ?) and are superior in their generality. > > Note that such cache-oblivious algorithms cannot be trivially applied to any problem. Also, properly written cache-oblivious algorithms tend to recursively decompose the problem until it is small enough to fit in a cache and solve each part iteratively. The improvement effect can be noticed on large inputs. These algorithms will most probably perform quite badly on small inputs. > jb > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >