From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 9 Jan 2001 13:39:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 9 Jan 2001 13:39:05 -0500 Received: from chiara.elte.hu ([157.181.150.200]:27660 "HELO chiara.elte.hu") by vger.kernel.org with SMTP id ; Tue, 9 Jan 2001 13:38:50 -0500 Date: Tue, 9 Jan 2001 19:38:28 +0100 (CET) From: Ingo Molnar Reply-To: To: Jens Axboe Cc: Alan Cox , "Stephen C. Tweedie" , Christoph Hellwig , "David S. Miller" , , , Subject: Re: [PLEASE-TESTME] Zerocopy networking patch, 2.4.0-1 In-Reply-To: <20010109183808.A12128@suse.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 9 Jan 2001, Jens Axboe wrote: > > > ever seen, this is why i quoted it - the talk was about block-IO > > > performance, and Stephen said that our block IO sucks. It used to suck, > > > but in 2.4, with the right patch from Jens, it doesnt suck anymore. ) > > > > Thats fine. Get me 128K-512K chunks nicely streaming into my raid controller > > and I'll be a happy man > > No problem, apply blk-13B and you'll get 512K chunks for SCSI and RAID. i cannot agree more - Jens' patch did wonders to IO performance here. It fixes a long-standing bug in the Linux block-IO-scheduler that caused very suboptimal requests being issued to lowlevel drivers once the request queue gets full. I think this patch is a clear candidate for 2.4.x inclusion. Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/