From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zps19.corp.google.com (zps19.corp.google.com [172.25.146.19]) by smtp-out.google.com with ESMTP id m3TE8Kfr014384 for ; Tue, 29 Apr 2008 15:08:20 +0100 Received: from fg-out-1718.google.com (fgad23.prod.google.com [10.86.55.23]) by zps19.corp.google.com with ESMTP id m3TE8Ijm030559 for ; Tue, 29 Apr 2008 07:08:19 -0700 Received: by fg-out-1718.google.com with SMTP id d23so10369fga.32 for ; Tue, 29 Apr 2008 07:08:18 -0700 (PDT) Message-ID: Date: Tue, 29 Apr 2008 10:08:18 -0400 From: "Ross Biro" Subject: Re: Page Faults slower in 2.6.25-rc9 than 2.6.23 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: linux-mm@kvack.org, lkml List-ID: On Tue, Apr 29, 2008 at 9:57 AM, Hugh Dickins wrote: > Do you have CONFIG_CGROUP_MEM_RES_CTLR=y in 2.6.25? > That added about 20% to my lmbench "Page Fault" tests (with > adverse effect on several others e.g. the fork, exec, sh group). I don't have config cgroups set. I do have fake numa on, but I'm pretty sure it was on for 2.6.23 as well. # CONFIG_CGROUPS is not set CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y # CONFIG_RT_GROUP_SCHED is not set CONFIG_USER_SCHED=y # CONFIG_CGROUP_SCHED is not set C Ross -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org