From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754714AbaGVNtH (ORCPT ); Tue, 22 Jul 2014 09:49:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:64281 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752508AbaGVNtF (ORCPT ); Tue, 22 Jul 2014 09:49:05 -0400 From: Jeff Moyer To: Gu Zheng Cc: bcrl@kvack.org, axboe@kernel.dk, akpm@linux-foundation.org, linux-aio@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 4/4] aio: use iovec array rather than the single one References: <1405996804-8262-1-git-send-email-guz.fnst@cn.fujitsu.com> <1405996804-8262-4-git-send-email-guz.fnst@cn.fujitsu.com> X-PGP-KeyID: 1F78E1B4 X-PGP-CertKey: F6FE 280D 8293 F72C 65FD 5A58 1FF8 A7CA 1F78 E1B4 X-PCLoadLetter: What the f**k does that mean? Date: Tue, 22 Jul 2014 09:48:50 -0400 In-Reply-To: <1405996804-8262-4-git-send-email-guz.fnst@cn.fujitsu.com> (Gu Zheng's message of "Tue, 22 Jul 2014 10:40:04 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Gu Zheng writes: > use an iovec array rather than the single one, so that we can avoid > to alloc more iovecs buffer in small(< 8) PREADV/PWRITEV cases. It would be helpful to know what motivated this change and how you tested it. Thanks, Jeff