Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755897Ab0F1DbL (ORCPT ); Sun, 27 Jun 2010 23:31:11 -0400 Received: from cantor2.suse.de ([195.135.220.15]:58811 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752573Ab0F1DbH (ORCPT ); Sun, 27 Jun 2010 23:31:07 -0400 Date: Mon, 28 Jun 2010 13:30:54 +1000 From: Nick Piggin To: Avi Kivity Cc: linux-kernel , KVM list , Andrew Morton , linux-mm@kvack.org Subject: Re: Slow vmalloc in 2.6.35-rc3 Message-ID: <20100628033054.GL29809@laptop> References: <4C232324.7070305@redhat.com> <20100624151427.GH10441@laptop> <4C271736.5010102@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4C271736.5010102@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 833 Lines: 22 On Sun, Jun 27, 2010 at 12:17:42PM +0300, Avi Kivity wrote: > On 06/24/2010 06:14 PM, Nick Piggin wrote: > >On Thu, Jun 24, 2010 at 12:19:32PM +0300, Avi Kivity wrote: > >>I see really slow vmalloc performance on 2.6.35-rc3: > >Can you try this patch? > >http://userweb.kernel.org/~akpm/mmotm/broken-out/mm-vmap-area-cache.patch > > The patch completely eliminates the problem. Thanks for testing. Andrew the patch changelog can be updated. Avi and Steven didn't give me numbers but it solves both their performance regressions, so I would say it is ready for merging. Thanks, Nick -- 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/