Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 10 Feb 2003 06:34:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 10 Feb 2003 06:34:27 -0500 Received: from [195.223.140.107] ([195.223.140.107]:11138 "EHLO athlon.random") by vger.kernel.org with ESMTP id ; Mon, 10 Feb 2003 06:34:26 -0500 Date: Mon, 10 Feb 2003 12:43:47 +0100 From: Andrea Arcangeli To: Andrew Morton Cc: reiser@namesys.com, piggin@cyberone.com.au, jakob@unthought.net, david.lang@digitalinsight.com, riel@conectiva.com.br, ckolivas@yahoo.com.au, linux-kernel@vger.kernel.org, axboe@suse.de Subject: Re: stochastic fair queueing in the elevator [Re: [BENCHMARK] 2.4.20-ck3 / aa / rmap with contest] Message-ID: <20030210114347.GZ31401@dualathlon.random> References: <20030210073614.GJ31401@dualathlon.random> <3E47579A.4000700@cyberone.com.au> <20030210080858.GM31401@dualathlon.random> <20030210001921.3a0a5247.akpm@digeo.com> <20030210085649.GO31401@dualathlon.random> <20030210010937.57607249.akpm@digeo.com> <3E4779DD.7080402@namesys.com> <20030210024810.43a57910.akpm@digeo.com> <20030210112104.GW31401@dualathlon.random> <20030210033327.5c24c052.akpm@digeo.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030210033327.5c24c052.akpm@digeo.com> User-Agent: Mutt/1.4i X-GPG-Key: 1024D/68B9CB43 X-PGP-Key: 1024R/CB4660B9 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 668 Lines: 20 On Mon, Feb 10, 2003 at 03:33:27AM -0800, Andrew Morton wrote: > Andrea Arcangeli wrote: > > > > what is this fadvise doing? > > Invoking fadvise64(). Dropping the pagecache. > > > yes, and anticipatory scheduler isn't going to fix it. furthmore with > > IDE the max merging is 64k so you can see little of the whole picture. > > 124k. (Or is it 128k now?) sure, sorry, the ide limit is 128k Andrea - 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/