From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756283Ab2HVHPE (ORCPT ); Wed, 22 Aug 2012 03:15:04 -0400 Received: from LGEMRELSE6Q.lge.com ([156.147.1.121]:45249 "EHLO LGEMRELSE6Q.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755947Ab2HVHO5 (ORCPT ); Wed, 22 Aug 2012 03:14:57 -0400 X-AuditID: 9c930179-b7cc4ae00000134d-45-503486eed56d From: Minchan Kim To: Andrew Morton Cc: Mel Gorman , Rik van Riel , Johannes Weiner , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Minchan Kim Subject: [RFC 0/5] Consider higher small zone and mmaped-pages stream Date: Wed, 22 Aug 2012 16:15:12 +0900 Message-Id: <1345619717-5322-1-git-send-email-minchan@kernel.org> X-Mailer: git-send-email 1.7.9.5 X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patchset solves two problem. 1. higher small memory zone - [2] and [3] 2. mmaped-pages stream reclaim efficiency [5] [1] and [4] is minor fix which isn't related with this series so it could be apply separately. I wrote down each problem in each patch description. Please look at each patch. Test enviroment is following as 1. Intel(R) Core(TM)2 Duo CPU 2. 2G RAM and 400M movable zone 3. Test program: Hannes's mapped-file-stream.c with 78 processes per 1G. 10 times exectuion. Thanks. Minchan Kim (5): [1] vmscan: Fix obsolete comment of balance_pgdat [2] vmscan: sleep only if backingdev is congested [3] vmscan: prevent excessive pageout of kswapd [4] vmscan: get rid of unnecessary nr_dirty ret variable [5] vmscan: accelerate to reclaim mapped-pages stream include/linux/mmzone.h | 23 +++++++++++++++ mm/vmscan.c | 77 ++++++++++++++++++++++++++++++++++++++---------- 2 files changed, 85 insertions(+), 15 deletions(-) -- 1.7.9.5