From patchwork Fri Sep 24 08:36:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liangcai Fan X-Patchwork-Id: 12514501 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 1A147C433F5 for ; Fri, 24 Sep 2021 08:36:33 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id A570F610D1 for ; Fri, 24 Sep 2021 08:36:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org A570F610D1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 16D936B0073; Fri, 24 Sep 2021 04:36:32 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 0F6DA900002; Fri, 24 Sep 2021 04:36:32 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id ED90E6B0075; Fri, 24 Sep 2021 04:36:31 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0190.hostedemail.com [216.40.44.190]) by kanga.kvack.org (Postfix) with ESMTP id D791E6B0073 for ; Fri, 24 Sep 2021 04:36:31 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 8F58E31E4A for ; Fri, 24 Sep 2021 08:36:31 +0000 (UTC) X-FDA: 78621810582.13.4F6E9EF Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) by imf13.hostedemail.com (Postfix) with ESMTP id 50CA9102FACF for ; Fri, 24 Sep 2021 08:36:31 +0000 (UTC) Received: by mail-pf1-f180.google.com with SMTP id g14so8326877pfm.1 for ; Fri, 24 Sep 2021 01:36:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id; bh=zJn8oIFC9ELM0JQoijzm75QBJICN8Ovtq+B3p7oqTBU=; b=Yphwy3ZKqXddFDGpxvile/vh988Cxf76vsWqbKvALDG0+J5JlPw7zALq/0/lXTKg4S mY6CR8TFfmWtSKpdCag46aV6Xr33zgTyYrArtl78M+D/jjduPIKcdLxF14oiHUID6BXZ Fu7UBHrgdqJZtzWtM9BLI4zNGH3OKwkjNLuUYj5Drn+7WFeorLqHpta9uAI3PeozNn8q 12uzOOVSjIwjKdva9T10VZVS90jrME/r4+OQ2han+SWQ8RYwexwQ23ohGbPkBuXBUOSg Jzky4XfLbCXMg0WBPuP5WQaAhyfFnDH0kOtbqcBlVfv50kHDzjoBjIeOiK3Mm2fONDjw i1mg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=zJn8oIFC9ELM0JQoijzm75QBJICN8Ovtq+B3p7oqTBU=; b=G+hXJ1vOzfq3i55J6lTVAF0lzbiDLpfW0QUGemx0LM6bP3//yWzLdzq4aJj9e1ysGQ hC+eQnU/KiOdXP8FnfYhN+g89mUPYA9BFOtKZi1niSsZZW76z3cDDTKvAgXpcg2+C3d0 7JuSVM59PzIsi8ftiGF7ffrS+987SMMhNJ+ol5ILqVHWWxceov6q33RhtreNO7XwzDic 0c4ijzqzU2BtyH1XHe/R+4/V259oebMzgIJN5ZHF2ns7FwKtsOh545ZI1t9KbJjGDX+/ miBz2Bs+Dx8ULezmfMV+hL0xoAre4H7Ja/m0NZPuTsfVZPJTlmACDvcSW7kw39UdIoGJ 0yZw== X-Gm-Message-State: AOAM532djMiMWllYvL/TvfxL3BtS69EgNY8Q76h5o+zrsNWYxd0PtoLi q+WXvN/thQJkxC82N+/FPDw= X-Google-Smtp-Source: ABdhPJz5lUFZG8e0UoKI/ETdn1Nu0A9w6MqDapDzGFbn9do7XBw8k8ZGpofv/Thwe8dh16akg68onA== X-Received: by 2002:a63:cf10:: with SMTP id j16mr2783288pgg.257.1632472590197; Fri, 24 Sep 2021 01:36:30 -0700 (PDT) Received: from bj10083pcu01.spreadtrum.com ([117.18.48.102]) by smtp.gmail.com with ESMTPSA id 65sm8197024pfu.187.2021.09.24.01.36.26 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 24 Sep 2021 01:36:29 -0700 (PDT) From: Liangcai Fan To: liangcai.fan@unisoc.com, akpm@linux-foundation.org Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, zhang.lyra@gmail.com, Liangcai Fan Subject: [PATCH] mm: Show watermark_boost of zone in zoneinfo Date: Fri, 24 Sep 2021 16:36:06 +0800 Message-Id: <1632472566-12246-1-git-send-email-liangcaifan19@gmail.com> X-Mailer: git-send-email 1.9.1 X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 50CA9102FACF X-Stat-Signature: gdeojjad7y8ip9aueg1jpo661aqnadn9 Authentication-Results: imf13.hostedemail.com; dkim=pass header.d=gmail.com header.s=20210112 header.b=Yphwy3ZK; spf=pass (imf13.hostedemail.com: domain of liangcaifan19@gmail.com designates 209.85.210.180 as permitted sender) smtp.mailfrom=liangcaifan19@gmail.com; dmarc=pass (policy=none) header.from=gmail.com X-HE-Tag: 1632472591-602370 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: min/low/high_wmark_pages(z) is defined as (z->_watermark[WMARK_MIN/LOW/HIGH] + z->watermark_boost). If kswapd is frequently waked up due to the increase of min/low/high_wmark_pages, printing watermark_boost can quickly locate whether watermark_boost or _watermark[WMARK_MIN/LOW/HIGH] caused min/low/high_wmark_pages to increase. Signed-off-by: Liangcai Fan --- mm/page_alloc.c | 2 ++ mm/vmstat.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index b37435c..fe343ad 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5980,6 +5980,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask) printk(KERN_CONT "%s" " free:%lukB" + " boost:%lukB" " min:%lukB" " low:%lukB" " high:%lukB" @@ -6000,6 +6001,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask) "\n", zone->name, K(zone_page_state(zone, NR_FREE_PAGES)), + K(zone->watermark_boost), K(min_wmark_pages(zone)), K(low_wmark_pages(zone)), K(high_wmark_pages(zone)), diff --git a/mm/vmstat.c b/mm/vmstat.c index 8ce2620..dbe37ed 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1656,6 +1656,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, } seq_printf(m, "\n pages free %lu" + "\n boost %lu" "\n min %lu" "\n low %lu" "\n high %lu" @@ -1664,6 +1665,7 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, "\n managed %lu" "\n cma %lu", zone_page_state(zone, NR_FREE_PAGES), + zone->watermark_boost, min_wmark_pages(zone), low_wmark_pages(zone), high_wmark_pages(zone),