From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932189AbWDDN2m (ORCPT ); Tue, 4 Apr 2006 09:28:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932440AbWDDN2m (ORCPT ); Tue, 4 Apr 2006 09:28:42 -0400 Received: from [212.33.180.135] ([212.33.180.135]:60176 "EHLO raad.intranet") by vger.kernel.org with ESMTP id S932189AbWDDN2l (ORCPT ); Tue, 4 Apr 2006 09:28:41 -0400 From: Al Boldi To: Peter Williams Subject: Re: [ANNOUNCE][RFC] PlugSched-6.3.1 for 2.6.16-rc5 Date: Tue, 4 Apr 2006 16:27:14 +0300 User-Agent: KMail/1.5 Cc: linux-kernel@vger.kernel.org, Jake Moilanen References: <200604031459.51542.a1426z@gawab.com> <4431AF69.1000708@bigpond.net.au> In-Reply-To: <4431AF69.1000708@bigpond.net.au> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="windows-1256" Content-Transfer-Encoding: 7bit Message-Id: <200604041627.14871.a1426z@gawab.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Peter Williams wrote: > Al Boldi wrote: > > The default values for spa make it really easy to lock up the system. > > Is there a module to autotune these values according to cpu/mem/ctxt > > performance? > > Jake Moilanen had a genetic algorithm autotuner for Zaphod at one time > which I believe he ported over to PlugSched Would this be a load-adaptive dynamic tuner? What I meant was a lock-preventive static tuner. Something that would take hw-latencies into account at boot and set values for non-locking console operation. > I could generate a patch to gather the statistic again and make them > available via /proc if you would like to try a user space version of > Jake's work (his was in kernel). That would be great! Thanks! -- Al