Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262584AbTEFLlY (ORCPT ); Tue, 6 May 2003 07:41:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262590AbTEFLlY (ORCPT ); Tue, 6 May 2003 07:41:24 -0400 Received: from pc2-cwma1-4-cust86.swan.cable.ntl.com ([213.105.254.86]:55206 "EHLO lxorguk.ukuu.org.uk") by vger.kernel.org with ESMTP id S262584AbTEFLlX (ORCPT ); Tue, 6 May 2003 07:41:23 -0400 Subject: Re: [PATCH 2.4.20] alloc_kiovec performance improvement From: Alan Cox To: Mikael Starvik Cc: "'linux-kernel@vger.kernel.org'" , Sebastian =?ISO-8859-1?Q?Sj=F6berg?= In-Reply-To: <3C6BEE8B5E1BAC42905A93F13004E8AB017DEB2E@mailse01.axis.se> References: <3C6BEE8B5E1BAC42905A93F13004E8AB017DEB2E@mailse01.axis.se> Content-Type: text/plain Content-Transfer-Encoding: 7bit Organization: Message-Id: <1052218512.28796.20.camel@dhcp22.swansea.linux.org.uk> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.2 (1.2.2-5) Date: 06 May 2003 11:55:12 +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 493 Lines: 11 On Llu, 2003-05-05 at 17:54, Mikael Starvik wrote: > alloc_kiovec always allocates 1024 buffer heads which is a waste > with performance in the cases when the buffers aren't used. See the patches in -ac that came from tuning Oracle performance. - 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/