From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f42.google.com (mail-pa0-f42.google.com [209.85.220.42]) by kanga.kvack.org (Postfix) with ESMTP id D7F416B0031 for ; Fri, 7 Feb 2014 00:08:51 -0500 (EST) Received: by mail-pa0-f42.google.com with SMTP id kl14so2694467pab.15 for ; Thu, 06 Feb 2014 21:08:51 -0800 (PST) Received: from LGEMRELSE1Q.lge.com (LGEMRELSE1Q.lge.com. [156.147.1.111]) by mx.google.com with ESMTP id x3si3533396pbf.91.2014.02.06.21.08.48 for ; Thu, 06 Feb 2014 21:08:50 -0800 (PST) From: Joonsoo Kim Subject: [PATCH 0/5] compaction related commits Date: Fri, 7 Feb 2014 14:08:41 +0900 Message-Id: <1391749726-28910-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Mel Gorman , Vlastimil Babka , Joonsoo Kim , Rik van Riel , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Joonsoo Kim This patchset is related to the compaction. patch 1 fixes contrary implementation of the purpose of compaction. patch 2~4 are for optimization. patch 5 is just for clean-up. I tested this patchset with stress-highalloc benchmark on Mel's mmtest and cannot find any regression in terms of success rate. And I find much reduced system time. Below is result of 3 runs. * Before time :: stress-highalloc 3276.26 user 740.52 system 1664.79 elapsed time :: stress-highalloc 3640.71 user 771.32 system 1633.83 elapsed time :: stress-highalloc 3691.64 user 775.44 system 1638.05 elapsed avg system: 1645 s * After time :: stress-highalloc 3225.51 user 732.40 system 1542.76 elapsed time :: stress-highalloc 3524.31 user 749.63 system 1512.88 elapsed time :: stress-highalloc 3610.55 user 757.20 system 1505.70 elapsed avg system: 1519 s That is 7% reduced system time. Thanks. Joonsoo Kim (5): mm/compaction: disallow high-order page for migration target mm/compaction: do not call suitable_migration_target() on every page mm/compaction: change the timing to check to drop the spinlock mm/compaction: check pageblock suitability once per pageblock mm/compaction: clean-up code on success of ballon isolation mm/compaction.c | 75 +++++++++++++++++++++++++++++-------------------------- 1 file changed, 39 insertions(+), 36 deletions(-) -- 1.7.9.5 -- 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