Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750779AbVKAMpa (ORCPT ); Tue, 1 Nov 2005 07:45:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750780AbVKAMpa (ORCPT ); Tue, 1 Nov 2005 07:45:30 -0500 Received: from mail.enyo.de ([212.9.189.167]:8172 "EHLO mail.enyo.de") by vger.kernel.org with ESMTP id S1750779AbVKAMp3 (ORCPT ); Tue, 1 Nov 2005 07:45:29 -0500 From: Florian Weimer To: Alex Bligh - linux-kernel Cc: LKML Subject: Re: 3ware 9550SX problems - mke2fs incredibly slow writing last third of inode tables References: Date: Tue, 01 Nov 2005 13:45:19 +0100 In-Reply-To: (Alex Bligh's message of "Sun, 30 Oct 2005 21:10:56 +0000") Message-ID: <87oe54cza8.fsf@mid.deneb.enyo.de> 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 Content-Length: 826 Lines: 17 * Alex Bligh: > All seems to go well until I try and do mke2fs. This appears to work, > and tries to write the inode tables. However, at (about) 3400 inodes > (of 11176), it slows to a crawl, writing one table every 10 seconds. > strace shows it is still running, and no errors are being reported. > However, it seems very sick. In my experience, the 3ware SATA controllers which are not NCQ-capable have very, very lousy write performance with some drives, unless you enable the write cache (which is, of course, a bit dangerous without UPS or battery backup on the controller). - 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/