From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f169.google.com (mail-pd0-f169.google.com [209.85.192.169]) by kanga.kvack.org (Postfix) with ESMTP id 9E4166B0031 for ; Tue, 15 Oct 2013 16:35:44 -0400 (EDT) Received: by mail-pd0-f169.google.com with SMTP id r10so9408655pdi.0 for ; Tue, 15 Oct 2013 13:35:44 -0700 (PDT) Subject: [RFC][PATCH 0/8] mm: freshen percpu pageset code From: Dave Hansen Date: Tue, 15 Oct 2013 13:35:36 -0700 Message-Id: <20131015203536.1475C2BE@viggo.jf.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org, Cody P Schafer , Andi Kleen , cl@gentwo.org, Andrew Morton , Mel Gorman , Dave Hansen The percpu pageset (pcp) code is looking a little old and neglected these days. This set does a couple of these things (in order of importance, not order of implementation in the series): 1. Change the default pageset pcp->high value from 744kB to 512k. (see "consolidate high-to-batch ratio code") 2. Allow setting of vm.percpu_pagelist_fraction=0, which takes you back to the boot-time behavior 3. Resolve inconsistencies in the way the boot-time and sysctl pcp code works. 4. Clarify some function names and code comments. -- 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