Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752300AbXLZLv2 (ORCPT ); Wed, 26 Dec 2007 06:51:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751026AbXLZLvT (ORCPT ); Wed, 26 Dec 2007 06:51:19 -0500 Received: from wa-out-1112.google.com ([209.85.146.182]:57568 "EHLO wa-out-1112.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750990AbXLZLvS (ORCPT ); Wed, 26 Dec 2007 06:51:18 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=VBPFi26EkMB0RuYQEZ9cP5sD1I2uoQ14v2iSWh8MBXWF8yky7RfSXKzTR6YxFfjG289E7wwn4ZPqe++IirVm0M2tcmR266BEGuICygIXvEqygvv6O/vdm3tN/zUPV3jNtHyR+al7Nm2kwVKjwTOlfnHS0FJljeJM4modpfsyWYg= Message-ID: Date: Wed, 26 Dec 2007 13:51:18 +0200 From: "saeed bishara" To: linux-kernel@vger.kernel.org Subject: read-ahead in NFS server MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 730 Lines: 18 Hi, my NFS server seems not to utilize the read-ahead feature, my exported dir is located on ext3 fs over sata disk. the sata controller can issue commands up to 1MB, also I modified the read ahead under the sys to 1MB. but when the client do reads in 32KB chunks (rsize), I can see in the server side that all IOs are ~32KB. my kernel version is 2.6.22.7. according to the nfsd code, the NFS server should utilize the read-ahead feature, but what should I do to make it work? saeed -- 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/