Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263705AbTICP5v (ORCPT ); Wed, 3 Sep 2003 11:57:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263793AbTICPzk (ORCPT ); Wed, 3 Sep 2003 11:55:40 -0400 Received: from fw.osdl.org ([65.172.181.6]:7648 "EHLO mail.osdl.org") by vger.kernel.org with ESMTP id S263705AbTICPzb (ORCPT ); Wed, 3 Sep 2003 11:55:31 -0400 Date: Wed, 3 Sep 2003 08:38:40 -0700 From: Andrew Morton To: Daniel Blueman Cc: linux-kernel@vger.kernel.org Subject: Re: pdflush question... Message-Id: <20030903083840.768cfd58.akpm@osdl.org> In-Reply-To: <14227.1062581053@www37.gmx.net> References: <14227.1062581053@www37.gmx.net> X-Mailer: Sylpheed version 0.9.4 (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 922 Lines: 23 Daniel Blueman wrote: > > Is it worth having a kernel config option to vary the number of 'pdflush' > kernel threads? > > For embedded, systems with no swap and maybe uniproc (?), perhaps one > pdflush kthread would do? Probably it should just be set to one by default anyway. One pdflush is good at serving lots of spindles. > Perhaps more generally, the number could be linked to the number of > processors and/or swap devices or spindles- this would eliminate having to configure > it, and improve downward and upward scaling, perhaps? Well the kernel will create up to eight pdflush instances according to the current load. That kinda works. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/