Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751619AbaAKJ0U (ORCPT ); Sat, 11 Jan 2014 04:26:20 -0500 Received: from mail-we0-f176.google.com ([74.125.82.176]:48882 "EHLO mail-we0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751072AbaAKJ0R (ORCPT ); Sat, 11 Jan 2014 04:26:17 -0500 MIME-Version: 1.0 In-Reply-To: <52D0854F.5060102@sr71.net> References: <20140103180147.6566F7C1@viggo.jf.intel.com> <20140103141816.20ef2a24c8adffae040e53dc@linux-foundation.org> <20140106043237.GE696@lge.com> <52D05D90.3060809@sr71.net> <20140110153913.844e84755256afd271371493@linux-foundation.org> <52D0854F.5060102@sr71.net> Date: Sat, 11 Jan 2014 11:26:16 +0200 X-Google-Sender-Auth: MpomBpeu8aMEDAbAuHDCsyFHLZ8 Message-ID: Subject: Re: [PATCH 0/9] re-shrink 'struct page' when SLUB is on. From: Pekka Enberg To: Dave Hansen Cc: Andrew Morton , Joonsoo Kim , "linux-mm@kvack.org" , LKML , Christoph Lameter Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 11, 2014 at 1:42 AM, Dave Hansen wrote: > On 01/10/2014 03:39 PM, Andrew Morton wrote: >>> I tested 4 cases, all of these on the "cache-cold kfree()" case. The >>> first 3 are with vanilla upstream kernel source. The 4th is patched >>> with my new slub code (all single-threaded): >>> >>> http://www.sr71.net/~dave/intel/slub/slub-perf-20140109.png >> >> So we're converging on the most complex option. argh. > > Yeah, looks that way. Seems like a reasonable compromise between memory usage and allocation speed. Christoph? Pekka -- 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/