Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 14 Sep 2002 03:42:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 14 Sep 2002 03:42:33 -0400 Received: from sv1.valinux.co.jp ([202.221.173.100]:64522 "HELO sv1.valinux.co.jp") by vger.kernel.org with SMTP id ; Sat, 14 Sep 2002 03:42:33 -0400 Date: Sat, 14 Sep 2002 16:39:33 +0900 (JST) Message-Id: <20020914.163933.132924824.taka@valinux.co.jp> To: akpm@digeo.com Cc: linux-kernel@vger.kernel.org, janetmor@us.ibm.com Subject: Re: [patch] readv/writev rework From: Hirokazu Takahashi In-Reply-To: <3D82C0F1.8733207D@digeo.com> References: <20020913.101826.32726068.taka@valinux.co.jp> <3D815C04.A08CB5D9@digeo.com> <3D82C0F1.8733207D@digeo.com> X-Mailer: Mew version 2.2 on Emacs 20.7 / Mule 4.0 (HANANOEN) 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: 778 Lines: 28 Hello Brilliant! It's great than I expected. > > So Janet's patch made a 15% improvement with this test. Yours > > dropped it 50% again. > > > > I've retested with your latest patch. > > 2.5.34-mm4-taka2 > write 55.543 > fwrite 12.625 > fwrite_unlocked 11.389 > writev 9.219 > > So that's another 70% speedup on top of yesterday's 100%, and kernel > beats glibc ;) Thanks for your testing my patch and your detailed explanation. Hirokazu Takahashi. - 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/