From patchwork Fri Jun 19 08:33:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Shi X-Patchwork-Id: 11613467 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 8698A92A for ; Fri, 19 Jun 2020 08:34:23 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5E1A720890 for ; Fri, 19 Jun 2020 08:34:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5E1A720890 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 758258D007C; Fri, 19 Jun 2020 04:34:22 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 72E528D0052; Fri, 19 Jun 2020 04:34:22 -0400 (EDT) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 66B0A8D007C; Fri, 19 Jun 2020 04:34:22 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0060.hostedemail.com [216.40.44.60]) by kanga.kvack.org (Postfix) with ESMTP id 4E37F8D0052 for ; Fri, 19 Jun 2020 04:34:22 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 16676824556B for ; Fri, 19 Jun 2020 08:34:22 +0000 (UTC) X-FDA: 76945299564.03.pipe34_151268826e17 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin03.hostedemail.com (Postfix) with ESMTP id CC90C28A4E8 for ; Fri, 19 Jun 2020 08:34:21 +0000 (UTC) X-Spam-Summary: 2,0,0,15da2a96f64fd663,d41d8cd98f00b204,alex.shi@linux.alibaba.com,,RULES_HIT:41:69:355:379:541:967:968:973:988:989:1260:1261:1345:1381:1437:1535:1544:1711:1730:1747:1777:1792:1801:2194:2198:2199:2200:2393:2525:2553:2559:2563:2682:2685:2859:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3355:3865:3866:3867:3868:3870:3871:3872:3874:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4250:4362:4470:4605:5007:6119:6261:6737:7903:8957:9010:9025:9040:10004:11026:11657:11658:11914:12043:12048:12050:12296:12297:12438:12895:13146:13161:13229:13230:13845:14096:14181:14394:14721:14915:21060:21080:21451:21627:21740:21939:30012:30054:30055:30056:30070:30090,0,RBL:115.124.30.132:@linux.alibaba.com:.lbl8.mailshell.net-64.201.201.201 62.20.2.100,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:158,LUA_SUMMARY:none X-HE-Tag: pipe34_151268826e17 X-Filterd-Recvd-Size: 5925 Received: from out30-132.freemail.mail.aliyun.com (out30-132.freemail.mail.aliyun.com [115.124.30.132]) by imf13.hostedemail.com (Postfix) with ESMTP for ; Fri, 19 Jun 2020 08:34:19 +0000 (UTC) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01355;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=16;SR=0;TI=SMTPD_---0U01FUt1_1592555654; Received: from localhost(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0U01FUt1_1592555654) by smtp.aliyun-inc.com(127.0.0.1); Fri, 19 Jun 2020 16:34:14 +0800 From: Alex Shi To: 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, willy@infradead.org, hannes@cmpxchg.org, lkp@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, shakeelb@google.com, iamjoonsoo.kim@lge.com, richard.weiyang@gmail.com Subject: [PATCH v13 00/18] per memcg lru lock Date: Fri, 19 Jun 2020 16:33:38 +0800 Message-Id: <1592555636-115095-1-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 X-Rspamd-Queue-Id: CC90C28A4E8 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: This is a new version which bases on linux-next, merged much suggestion from Hugh Dickins, from compaction fix to less TestClearPageLRU and comments reverse etc. Thank a lot, Hugh! Johannes Weiner has suggested: "So here is a crazy idea that may be worth exploring: Right now, pgdat->lru_lock protects both PageLRU *and* the lruvec's linked list. Can we make PageLRU atomic and use it to stabilize the lru_lock instead, and then use the lru_lock only serialize list operations? ..." With new memcg charge path and this solution, we could isolate LRU pages to exclusive visit them in compaction, page migration, reclaim, memcg move_accunt, huge page split etc scenarios while keeping pages' memcg stable. Then possible to change per node lru locking to per memcg lru locking. As to pagevec_lru_move_fn funcs, it would be safe to let pages remain on lru list, lru lock could guard them for list integrity. The patchset includes 3 parts: 1, some code cleanup and minimum optimization as a preparation. 2, use TestCleanPageLRU as page isolation's precondition 3, replace per node lru_lock with per memcg per node lru_lock The 3rd part moves per node lru_lock into lruvec, thus bring a lru_lock for each of memcg per node. So on a large machine, each of memcg don't have to suffer from per node pgdat->lru_lock competition. They could go fast with their self lru_lock Following Daniel Jordan's suggestion, I have run 208 'dd' with on 104 containers on a 2s * 26cores * HT box with a modefied case: https://git.kernel.org/pub/scm/linux/kernel/git/wfg/vm-scalability.git/tree/case-lru-file-readtwice With this patchset, the readtwice performance increased about 80% in concurrent containers. Thanks Hugh Dickins and Konstantin Khlebnikov, they both brought this idea 8 years ago, and others who give comments as well: Daniel Jordan, Mel Gorman, Shakeel Butt, Matthew Wilcox etc. Thanks for Testing support from Intel 0day and Rong Chen, Fengguang Wu, and Yun Wang. Hugh Dickins also shared his kbuild-swap case. Thanks! Alex Shi (16): mm/vmscan: remove unnecessary lruvec adding mm/page_idle: no unlikely double check for idle page counting mm/compaction: correct the comments of compact_defer_shift mm/compaction: rename compact_deferred as compact_should_defer mm/thp: move lru_add_page_tail func to huge_memory.c mm/thp: clean up lru_add_page_tail mm/thp: narrow lru locking mm/memcg: add debug checking in lock_page_memcg mm/swap: fold vm event PGROTATED into pagevec_move_tail_fn mm/lru: introduce TestClearPageLRU mm/compaction: do page isolation first in compaction mm/mlock: reorder isolation sequence during munlock mm/swap: serialize memcg changes during pagevec_lru_move_fn mm/lru: replace pgdat lru_lock with lruvec lock mm/lru: introduce the relock_page_lruvec function mm/pgdat: remove pgdat lru_lock Hugh Dickins (2): mm/vmscan: use relock for move_pages_to_lru mm/lru: revise the comments of lru_lock Documentation/admin-guide/cgroup-v1/memcg_test.rst | 15 +- Documentation/admin-guide/cgroup-v1/memory.rst | 21 ++- Documentation/trace/events-kmem.rst | 2 +- Documentation/vm/unevictable-lru.rst | 22 +-- include/linux/compaction.h | 4 +- include/linux/memcontrol.h | 95 +++++++++++ include/linux/mm_types.h | 2 +- include/linux/mmzone.h | 6 +- include/linux/page-flags.h | 1 + include/linux/swap.h | 4 +- include/trace/events/compaction.h | 2 +- mm/compaction.c | 113 ++++++++----- mm/filemap.c | 4 +- mm/huge_memory.c | 54 +++++-- mm/memcontrol.c | 56 ++++++- mm/mlock.c | 93 +++++------ mm/mmzone.c | 1 + mm/page_alloc.c | 1 - mm/page_idle.c | 8 - mm/rmap.c | 4 +- mm/swap.c | 175 +++++++-------------- mm/swap_state.c | 5 +- mm/vmscan.c | 165 ++++++++++--------- mm/workingset.c | 4 +- 24 files changed, 500 insertions(+), 357 deletions(-)