Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754515AbYBROQ0 (ORCPT ); Mon, 18 Feb 2008 09:16:26 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751826AbYBROQT (ORCPT ); Mon, 18 Feb 2008 09:16:19 -0500 Received: from brick.kernel.dk ([87.55.233.238]:12833 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751713AbYBROQS (ORCPT ); Mon, 18 Feb 2008 09:16:18 -0500 Date: Mon, 18 Feb 2008 15:16:14 +0100 From: Jens Axboe To: Andi Kleen Cc: "Alan D. Brunelle" , linux-kernel@vger.kernel.org, npiggin@suse.de, dgc@sgi.com, arjan@linux.intel.com Subject: Re: IO queueing and complete affinity w/ threads: Some results Message-ID: <20080218141614.GD23197@kernel.dk> References: <47B0B69B.1050807@hp.com> <47B46008.9020804@hp.com> <20080218123717.GW23197@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 807 Lines: 22 On Mon, Feb 18 2008, Andi Kleen wrote: > Jens Axboe writes: > > > and that scrapping the remote > > softirq trigger stuff is sanest. > > I actually liked Nick's queued smp_function_call_single() patch. So even > if it was not used for block I would still like to see it being merged > in some form to speed up all the other IPI users. Sure, Nicks patch was generically usable, my IPI stuff was just a hack made to go as fast as possible for a single use. The current call-on-other cpu path is not exactly scalable... -- Jens Axboe -- 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/