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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 788BDC4361B for ; Tue, 15 Dec 2020 03:20:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 28ED2224BD for ; Tue, 15 Dec 2020 03:20:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727369AbgLODUW (ORCPT ); Mon, 14 Dec 2020 22:20:22 -0500 Received: from mail.kernel.org ([198.145.29.99]:36030 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727723AbgLODLY (ORCPT ); Mon, 14 Dec 2020 22:11:24 -0500 Date: Mon, 14 Dec 2020 19:09:02 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001743; bh=K7Y4Fdl4u07UjNvujag/pQbqMUcakgkGi5MxXNqcYHs=; h=From:To:Subject:In-Reply-To:From; b=KZpTwUsybzMao6Ic/oHTN8GMegQut2WOVvjUlNFiEbMxrOimYqCmfxpaPDL5twxD1 lbXHTHARvlcEhsbTiFFOVuemle9gytqaFg8tVsTWz+Ux9aF7FiEa4aWR7QHVlN4wzj Nm5HF4zojUfYXGGuvwgmN28oaBig3gqA9ICL4D4k= From: Andrew Morton To: akpm@linux-foundation.org, alex.shi@linux.alibaba.com, corbet@lwn.net, kirill.shutemov@linux.intel.com, linux-mm@kvack.org, mm-commits@vger.kernel.org, rientjes@google.com, torvalds@linux-foundation.org, yang.shi@linux.alibaba.com, ziy@nvidia.com Subject: [patch 099/200] docs/vm: remove unused 3 items explanation for /proc/vmstat Message-ID: <20201215030902.nOlCCkLtw%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Alex Shi Subject: docs/vm: remove unused 3 items explanation for /proc/vmstat 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", Link: https://lkml.kernel.org/r/1605520282-51993-1-git-send-email-alex.shi@linux.alibaba.com Signed-off-by: Alex Shi Reviewed-by: Zi Yan Cc: Jonathan Corbet Cc: Yang Shi Cc: "Kirill A. Shutemov" Cc: David Rientjes Signed-off-by: Andrew Morton --- Documentation/admin-guide/mm/transhuge.rst | 15 --------------- 1 file changed, 15 deletions(-) --- a/Documentation/admin-guide/mm/transhuge.rst~docs-vm-remove-unused-3-items-explanation-for-proc-vmstat +++ a/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 _