Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756360AbXJOH0a (ORCPT ); Mon, 15 Oct 2007 03:26:30 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751869AbXJOH0X (ORCPT ); Mon, 15 Oct 2007 03:26:23 -0400 Received: from smtp103.mail.mud.yahoo.com ([209.191.85.213]:34136 "HELO smtp103.mail.mud.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751864AbXJOH0W (ORCPT ); Mon, 15 Oct 2007 03:26:22 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com.au; h=Received:X-YMail-OSG:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id; b=wQTb3fN7fVOTyXs8au+HJfgt9hUjkylRuVHnl2SVxQZXettwLB+RJNWq7qF/AfvVwGTiUsCrfa2z5xU5XAQVP+Q6SBum2acZM+s421rWYYCoYx9V1Z3M7r2yVq1657OTp2TDMZIsoW0UvkXmLzcevi5FT1anqLXw2UeqcL3G5uw= ; X-YMail-OSG: O63Oe_oVM1ni2HAohUOPcgen7tvdv.dEqYArzq0.XYOCaObz2VwVFqqHWEOq0kibWgnoc_VSaq.cr0XjHeag3.bTBtD0_LsUkHsdd2j6LDKVs_rCas8KzrWb6Z6z7w-- From: Nick Piggin To: "Alok kataria" Subject: Re: ARCH_FREE_PTE_NR 5350 on x86_64 Date: Mon, 15 Oct 2007 22:36:24 +1000 User-Agent: KMail/1.9.5 Cc: "Andi Kleen" , hugh@veritas.com, linux-kernel@vger.kernel.org References: <35f686220710142354k66e1b9acwf65864b138ffd26@mail.gmail.com> In-Reply-To: <35f686220710142354k66e1b9acwf65864b138ffd26@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200710152236.24789.nickpiggin@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1113 Lines: 26 On Monday 15 October 2007 16:54, Alok kataria wrote: > Hi, > > Looking at the tlb_flush code path and its co-relation with > ARCH_FREE_PTE_NR, on x86-64 architecture. I think we still don't use > the ARCH_FREE_PTE_NR of 5350 as the caching value for the mmu_gathers > structure, instead fallback to using 506 due to some typo errors in > the code. > > Found this link in the archives. > > http://www.ussg.iu.edu/hypermail/linux/kernel/0509.1/1821.html > > I don't think anything has been done on this yet (looked at 2.6.23). > Do let me know if its only a typo that needs a fix, or we are still > waiting for some other other changes to come into effect. ARCH_FREE_PTE_NR should probably just get ripped out completely at this point. Something similar (but working) could be added back if anybody actually had a workload where it helps to increase the mmu batch size. - 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/