From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41197C43331 for ; Tue, 12 Nov 2019 14:06:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1B397222C2 for ; Tue, 12 Nov 2019 14:06:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727414AbfKLOGn (ORCPT ); Tue, 12 Nov 2019 09:06:43 -0500 Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]:46872 "EHLO out30-133.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726497AbfKLOGm (ORCPT ); Tue, 12 Nov 2019 09:06:42 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01422;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0Thubem1_1573567598; Received: from localhost(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0Thubem1_1573567598) by smtp.aliyun-inc.com(127.0.0.1); Tue, 12 Nov 2019 22:06:38 +0800 From: Alex Shi To: alex.shi@linux.alibaba.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, akpm@linux-foundation.org, mgorman@techsingularity.net, tj@kernel.org, hughd@google.com, khlebnikov@yandex-team.ru, daniel.m.jordan@oracle.com, yang.shi@linux.alibaba.com Subject: [PATCH v2 0/8] per lruvec lru_lock for memcg Date: Tue, 12 Nov 2019 22:06:20 +0800 Message-Id: <1573567588-47048-1-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, This patchset move lru_lock into lruvec, give a lru_lock for each of lruvec, thus bring a lru_lock for each of memcg per node. According to Daniel Jordan's suggestion, I run 64 'dd' with on 32 containers on my 2s* 8 core * HT box with the modefied case: https://git.kernel.org/pub/scm/linux/kernel/git/wfg/vm-scalability.git/tree/case-lru-file-readtwice With this change above lru_lock censitive testing improved 17% with multiple containers scenario. And no performance lose w/o mem_cgroup. Thanks Hugh Dickins and Konstantin Khlebnikov, they both bring the same idea 7 years ago. I don't know why they didn't go further, but according to my testing, and google internal usage. This feathre is clearly benefit multi-container user. So I like to introduce it here. v2: bypass a performance regression bug and fix some function issues --- Documentation/admin-guide/cgroup-v1/memcg_test.rst | 15 +++------------ Documentation/admin-guide/cgroup-v1/memory.rst | 6 +++--- Documentation/trace/events-kmem.rst | 2 +- Documentation/vm/unevictable-lru.rst | 22 ++++++++-------------- include/linux/memcontrol.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mm_types.h | 2 +- include/linux/mmzone.h | 7 +++++-- mm/compaction.c | 62 ++++++++++++++++++++++++++++++++++++++++++-------------------- mm/filemap.c | 4 ++-- mm/huge_memory.c | 16 ++++++---------- mm/memcontrol.c | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++------------- mm/mlock.c | 27 ++++++++++++++------------- mm/mmzone.c | 1 + mm/page_alloc.c | 1 - mm/page_idle.c | 5 +++-- mm/rmap.c | 2 +- mm/swap.c | 77 +++++++++++++++++++++++++++++++---------------------------------------------- mm/vmscan.c | 74 ++++++++++++++++++++++++++++++++++++++------------------------------------ 18 files changed, 277 insertions(+), 177 deletions(-) [PATCH v2 1/8] mm/lru: add per lruvec lock for memcg [PATCH v2 2/8] mm/lruvec: add irqsave flags into lruvec struct [PATCH v2 3/8] mm/lru: replace pgdat lru_lock with lruvec lock [PATCH v2 4/8] mm/lru: only change the lru_lock iff page's lruvec is [PATCH v2 5/8] mm/pgdat: remove pgdat lru_lock [PATCH v2 6/8] mm/lru: remove rcu_read_lock to fix performance [PATCH v2 7/8] mm/lru: likely enhancement [PATCH v2 8/8] mm/lru: revise the comments of lru_lock