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=-15.8 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 66D56C433F5 for ; Fri, 24 Sep 2021 08:36:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E6B261211 for ; Fri, 24 Sep 2021 08:36:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244921AbhIXIiI (ORCPT ); Fri, 24 Sep 2021 04:38:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41302 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244947AbhIXIiD (ORCPT ); Fri, 24 Sep 2021 04:38:03 -0400 Received: from mail-pg1-x52a.google.com (mail-pg1-x52a.google.com [IPv6:2607:f8b0:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98CFDC061756 for ; Fri, 24 Sep 2021 01:36:30 -0700 (PDT) Received: by mail-pg1-x52a.google.com with SMTP id s11so9161946pgr.11 for ; Fri, 24 Sep 2021 01:36:30 -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=ljyqbXc5GesUmGpxwFUL2zmZyQv1R+fWD/pyzH/vg0dSQ2bfEZhl/ClYo83MamL4rQ Tzc/Jn/xv8guhcKHbo1xSf16Jac1kmMehHGydZdmbzM0+krPF6MCN/Gg6/mfX/9MlaWx Ft+2Pi+KAheGuByYmnuInlGQnkpJqE7Q82HNC79GYm45TeE5kPP1lCbIWJPAKzf0OYmf vy4A2DUUYWdhQRatQWuqBb4fhKPRzZyMbppnA1D20VnkqpIkbUxJ6UczXns3+GgsPtL5 cVEoJ4Pw/Zl4sxFJwuJCoUPJJLaBJEmVK3tki9aGbT+3YmG570SYQZnvUreWCpvtYYAR DLGw== X-Gm-Message-State: AOAM5336vdOxsi6Qtj/ezwP1txbXzQIDxj7d54bOD4HFFHNZGQ6/zBjm 2RUBB2N2pKewwS3zCDa1ydetsMe0iPRSKA== 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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), -- 1.9.1