Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751099AbWIYQMQ (ORCPT ); Mon, 25 Sep 2006 12:12:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751106AbWIYQMQ (ORCPT ); Mon, 25 Sep 2006 12:12:16 -0400 Received: from e1.ny.us.ibm.com ([32.97.182.141]:5352 "EHLO e1.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1751099AbWIYQMO (ORCPT ); Mon, 25 Sep 2006 12:12:14 -0400 Date: Mon, 25 Sep 2006 09:12:15 -0700 From: Mike Kravetz To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , John Stultz , "Paul E. McKenney" , Dipankar Sarma , Arjan van de Ven Subject: Re: 2.6.18-rt1 Message-ID: <20060925161215.GA19230@w-mikek2.ibm.com> References: <20060920141907.GA30765@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060920141907.GA30765@elte.hu> User-Agent: Mutt/1.4.2.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 18 On Wed, Sep 20, 2006 at 04:19:07PM +0200, Ingo Molnar wrote: > In particular, a nasty softirq performance bug has been fixed, which > caused the "5x slowdown under TCP" bug reported to lkml - those TCP > performance figures are now on par with vanilla performance. Just curious about the cause and fix for this issue. I tried searching the mail lists for discussion but came up empty. The patch it too big for me to determine what specific changes addressed this issue. If anyone can point me in the right direction, that would be appreciated. Thanks, -- Mike - 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/