From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261438AbVFTSpy (ORCPT ); Mon, 20 Jun 2005 14:45:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261440AbVFTSpx (ORCPT ); Mon, 20 Jun 2005 14:45:53 -0400 Received: from emailhub.stusta.mhn.de ([141.84.69.5]:14347 "HELO mailout.stusta.mhn.de") by vger.kernel.org with SMTP id S261438AbVFTSpn (ORCPT ); Mon, 20 Jun 2005 14:45:43 -0400 Date: Mon, 20 Jun 2005 20:45:39 +0200 From: Adrian Bunk To: Petter =?iso-8859-1?Q?Sundl=F6f?= Cc: Linux Kernel Mailing List Subject: Re: Observation: very low USB performance in 2.6.12 (-2 from agnula) Message-ID: <20050620184539.GC3666@stusta.de> References: <42B7075C.1090606@findus.dhs.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <42B7075C.1090606@findus.dhs.org> User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 20, 2005 at 08:13:48PM +0200, Petter Sundlöf wrote: > I've observed that USB performance (mass storage) is severaly degraded > in 2.6.12. Going back to 2.6.10 restores performances to expected levels. Is CONFIG_BLK_DEV_UB enabled in your kernel? If yes, does disabling it fix the problem? cu Adrian -- "Is there not promise of rain?" Ling Tan asked suddenly out of the darkness. There had been need of rain for many days. "Only a promise," Lao Er said. Pearl S. Buck - Dragon Seed