From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756225Ab3LEXxl (ORCPT ); Thu, 5 Dec 2013 18:53:41 -0500 Received: from mail-yh0-f45.google.com ([209.85.213.45]:48287 "EHLO mail-yh0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752447Ab3LEXxj (ORCPT ); Thu, 5 Dec 2013 18:53:39 -0500 Date: Thu, 5 Dec 2013 15:53:35 -0800 (PST) From: David Rientjes X-X-Sender: rientjes@chino.kir.corp.google.com To: Christoph Lameter cc: Andrew Morton , Michal Hocko , KAMEZAWA Hiroyuki , Johannes Weiner , Mel Gorman , Rik van Riel , Pekka Enberg , linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org Subject: Re: [patch 3/8] mm, mempolicy: remove per-process flag In-Reply-To: <00000142c426b81a-45e6815b-bde4-483c-975e-ce1eea42a753-000000@email.amazonses.com> Message-ID: References: <20131119131400.GC20655@dhcp22.suse.cz> <20131119134007.GD20655@dhcp22.suse.cz> <20131120152251.GA18809@dhcp22.suse.cz> <20131128115458.GK2761@dhcp22.suse.cz> <00000142be3633ba-2a459537-58fb-444b-a99f-33ff5e5b2aed-000000@email.amazonses.com> <00000142c426b81a-45e6815b-bde4-483c-975e-ce1eea42a753-000000@email.amazonses.com> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 5 Dec 2013, Christoph Lameter wrote: > Specjbb? What does Java have to do with this? > Can you run the synthetic in kernel slab benchmark. > > Like this one https://lkml.org/lkml/2009/10/13/459 > We actually carry that in our production kernel and have updated it to build on 3.11, I'll run it and netperf TCP_RR as well, thanks. > However, SLAB is still the allocator in use for RHEL which puts some > importance on still supporting SLAB. > Google also uses it exclusively so I'm definitely not saying that since it's not default that we can ignore it. I haven't seen any performance regression in removing it, but I'll post the numbers on the slab benchmark and netperf TCP_RR when I have them.