Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761592AbXJDU6Y (ORCPT ); Thu, 4 Oct 2007 16:58:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757704AbXJDU6P (ORCPT ); Thu, 4 Oct 2007 16:58:15 -0400 Received: from palinux.external.hp.com ([192.25.206.14]:42198 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756647AbXJDU6O (ORCPT ); Thu, 4 Oct 2007 16:58:14 -0400 Date: Thu, 4 Oct 2007 14:58:12 -0600 From: Matthew Wilcox To: David Miller Cc: arjan@infradead.org, clameter@sgi.com, willy@linux.intel.com, nickpiggin@yahoo.com.au, hch@lst.de, mel@skynet.ie, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, dgc@sgi.com, jens.axboe@oracle.com Subject: Re: SLUB performance regression vs SLAB Message-ID: <20071004205812.GQ12049@parisc-linux.org> References: <20071004161621.GO12049@parisc-linux.org> <20071004105046.7b019fe8@laptopd505.fenrus.org> <20071004.134834.112622292.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20071004.134834.112622292.davem@davemloft.net> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1344 Lines: 30 On Thu, Oct 04, 2007 at 01:48:34PM -0700, David Miller wrote: > There comes a point where it is the reporter's responsibility to help > the developer come up with a publishable test case the developer can > use to work on fixing the problem and help ensure it stays fixed. That's a lot of effort. Is it more effort than doing some remote debugging with Christoph? I don't know. > Using an unpublishable benchmark, whose results even cannot be > published, really stretches the limits of "reasonable" don't you > think? Yet here we stand. Christoph is aggressively trying to get slab removed from the tree. There is a testcase which shows slub performing worse than slab. It's not my fault I can't publish it. And just because I can't publish it doesn't mean it doesn't exist. Slab needs to not get removed until slub is as good a performer on this benchmark. -- Intel are signing my paycheques ... these opinions are still mine "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." - 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/