From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 8 Aug 2001 22:34:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 8 Aug 2001 22:34:25 -0400 Received: from islay.mach.uni-karlsruhe.de ([129.13.162.92]:35249 "EHLO mailout.plan9.de") by vger.kernel.org with ESMTP id ; Wed, 8 Aug 2001 22:34:22 -0400 Date: Thu, 9 Aug 2001 04:34:31 +0200 From: To: linux-kernel@vger.kernel.org Subject: Re: I/O very slow under 2.4 (device reading) Message-ID: <20010809043431.C2456@cerebro.laendle> Mail-Followup-To: linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Operating-System: Linux version 2.4.8-pre7 (root@cerebro) (gcc version 3.0.1 20010716 (prerelease)) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 08, 2001 at 11:12:45AM -0700, Linus Torvalds wrote: > and the VM disagree about how/when to allocate memory. It's fixed by the patch > I'll make a real pre-patch (2.4.8-pre7) with the full changeset, can you after 10 gigs of reading: procs memory swap io system cpu r b w swpd free buff cache si so bi bo in cs us sy id 0 1 0 0 6828 372696 36340 0 0 48292 6 726 2188 0 25 75 0 1 0 0 6880 370536 39352 0 0 33792 0 726 3725 1 37 62 1 0 1 0 6880 370160 36340 0 0 25652 48 411 3374 1 82 17 0 1 0 0 6628 370780 36288 0 0 44788 0 690 2071 1 31 68 1 0 1 0 6832 372972 36264 0 0 41988 0 674 2933 0 42 57 the system still feels a bit sluggishly, but otherwise NO SIGN of that problem (no io slowdown, no short freezes). just the usual "disks are in-use" contentions. cool ,) > at a nice stable 21MB/s which is all my disk can deliver. you _should_ know that raw speed doesn't mean too much. > [ Damn, maybe I should get one of those nice big 7200 rpm IBM drives ] maybe noisier. and for some reason (I swear for ibm drives usually), they keep getting uncorrectable media errors on all of my machines.. ;) still they are the best ones available ;) -- -----==- | ----==-- _ | ---==---(_)__ __ ____ __ Marc Lehmann +-- --==---/ / _ \/ // /\ \/ / pcg@goof.com |e| -=====/_/_//_/\_,_/ /_/\_\ XX11-RIPE --+ The choice of a GNU generation | |