From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261203AbVF0PCb (ORCPT ); Mon, 27 Jun 2005 11:02:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261742AbVF0O6A (ORCPT ); Mon, 27 Jun 2005 10:58:00 -0400 Received: from dtp.xs4all.nl ([80.126.206.180]:36429 "HELO abra2.bitwizard.nl") by vger.kernel.org with SMTP id S261662AbVF0N1M (ORCPT ); Mon, 27 Jun 2005 09:27:12 -0400 Date: Mon, 27 Jun 2005 15:27:05 +0200 From: Rogier Wolff To: Naoaki Maeda Cc: Gerrit Huizenga , Andrew Morton , linux-kernel@vger.kernel.org, ckrm-tech@lists.sourceforge.net, Matt Helsley Subject: Re: [ckrm-tech] [patch 25/38] CKRM e18: Add fork rate control to the numtasks controller Message-ID: <20050627132704.GA3555@bitwizard.nl> References: <20050623061552.833852000@w-gerrit.beaverton.ibm.com> <20050623061759.325157000@w-gerrit.beaverton.ibm.com> <42BFA5C6.9040604@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <42BFA5C6.9040604@jp.fujitsu.com> Organization: BitWizard.nl User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 27, 2005 at 04:07:50PM +0900, Naoaki Maeda wrote: > Gerrit Huizenga wrote:> > +By default, the sys_total_tasks is set to 131072(128k), and forkrate is set > > +to 1 million and forkrate_interval is set to 3600 seconds. Which means the > > +total number of tasks in a system is limited to 131072 and the forks are > > +limited to 1 million per hour. > > From the same point of view, the default value of forkrate should be > no limit. (In addition, 1 million tasks per hour is not an abnormally > high rate.) It is quite high. however, in some applications I can immagine that a machine would indeed trigger a very high fork rate. For example, a machine that runs lots of shell scripts that call each other, may all of a sudden be forking the required 300/second.... Roger. -- ** R.E.Wolff@BitWizard.nl ** http://www.BitWizard.nl/ ** +31-15-2600998 ** *-- BitWizard writes Linux device drivers for any device you may have! --* Q: It doesn't work. A: Look buddy, doesn't work is an ambiguous statement. Does it sit on the couch all day? Is it unemployed? Please be specific! Define 'it' and what it isn't doing. --------- Adapted from lxrbot FAQ