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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 18FA8C4742C for ; Mon, 16 Nov 2020 10:34:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BFE352227F for ; Mon, 16 Nov 2020 10:34:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728761AbgKPJvb (ORCPT ); Mon, 16 Nov 2020 04:51:31 -0500 Received: from out30-130.freemail.mail.aliyun.com ([115.124.30.130]:43318 "EHLO out30-130.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726215AbgKPJva (ORCPT ); Mon, 16 Nov 2020 04:51:30 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R141e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e01424;MF=alex.shi@linux.alibaba.com;NM=1;PH=DS;RN=8;SR=0;TI=SMTPD_---0UFWzOrN_1605520286; Received: from aliy80.localdomain(mailfrom:alex.shi@linux.alibaba.com fp:SMTPD_---0UFWzOrN_1605520286) by smtp.aliyun-inc.com(127.0.0.1); Mon, 16 Nov 2020 17:51:26 +0800 From: Alex Shi To: corbet@lwn.net Cc: Andrew Morton , Yang Shi , "Kirill A. Shutemov" , David Rientjes , Zi Yan , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] docs/vm: remove unused 3 items explanation for /proc/vmstat Date: Mon, 16 Nov 2020 17:51:22 +0800 Message-Id: <1605520282-51993-1-git-send-email-alex.shi@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit 5647bc293ab1 ("mm: compaction: Move migration fail/success stats to migrate.c"), removed 3 items in /proc/vmstat. but the docs still has their explanation. let's remove them. "compact_blocks_moved", "compact_pages_moved", "compact_pagemigrate_failed", Signed-off-by: Alex Shi Cc: Jonathan Corbet Cc: Andrew Morton Cc: Yang Shi Cc: "Kirill A. Shutemov" Cc: David Rientjes Cc: Zi Yan Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- Documentation/admin-guide/mm/transhuge.rst | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/Documentation/admin-guide/mm/transhuge.rst b/Documentation/admin-guide/mm/transhuge.rst index b2acd0d395ca..3b8a336511a4 100644 --- a/Documentation/admin-guide/mm/transhuge.rst +++ b/Documentation/admin-guide/mm/transhuge.rst @@ -401,21 +401,6 @@ compact_fail is incremented if the system tries to compact memory but failed. -compact_pages_moved - is incremented each time a page is moved. If - this value is increasing rapidly, it implies that the system - is copying a lot of data to satisfy the huge page allocation. - It is possible that the cost of copying exceeds any savings - from reduced TLB misses. - -compact_pagemigrate_failed - is incremented when the underlying mechanism - for moving a page failed. - -compact_blocks_moved - is incremented each time memory compaction examines - a huge page aligned range of pages. - It is possible to establish how long the stalls were using the function tracer to record how long was spent in __alloc_pages_nodemask and using the mm_page_alloc tracepoint to identify which allocations were -- 2.29.GIT