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[209.85.220.65]) by mx.google.com with SMTPS id t32sor6497219pgm.70.2019.05.27.04.53.21 for (Google Transport Security); Mon, 27 May 2019 04:53:21 -0700 (PDT) Received-SPF: pass (google.com: domain of laoar.shao@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=Gwhl6Uyd; spf=pass (google.com: domain of laoar.shao@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=laoar.shao@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=H6pwDfurTwvymXFL+GjiNLQ/ZlmPmWdTfSv7esEAkNY=; b=Gwhl6UydUlKku/Zlw1lQSTiLSE/e98mws+wTcdKE/kaRNc88tiWPBk5wU/GKMuWU+Y 9DT0c5USFh8LtLrcNMeJaBKwc2zdUKMgoQR0jcGrXOIGvlNqkfBbQST+HTt3taNRQJ8X FRFWBlDB92VrCFN1FgIcIVI8ipSHe6KOdz1JDwocpkAL6/csfFn3K2YhFm1YbWbq2XHc vZgcpHPBa9qXfi7Kv0DL9lalMPjz/uSChRVfAyp59giyxHZsjQoMpms4CUcqKjYTiY6r gzXSjNvYt8g2dSBzeXdjEsgyB/T6o3eAq2q2BLNOuOPna0bAjUC/SMEwWU3oSkvY5fiy 3yxQ== X-Google-Smtp-Source: APXvYqw6Yd2DOEHsp8jed4XQtl8xX+zGbjN4PxPFczeHI+r4qoT7Kj7vIKYyux6vLntpg7Mjg6X4Uw== X-Received: by 2002:a65:51cb:: with SMTP id i11mr34733872pgq.390.1558958000941; Mon, 27 May 2019 04:53:20 -0700 (PDT) Received: from localhost.localdomain ([203.100.54.194]) by smtp.gmail.com with ESMTPSA id e24sm9797738pgl.94.2019.05.27.04.53.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 May 2019 04:53:20 -0700 (PDT) From: Yafang Shao To: mhocko@suse.com, akpm@linux-foundation.org Cc: linux-mm@kvack.org, shaoyafang@didiglobal.com, Yafang Shao Subject: [PATCH v2 1/3] mm/vmstat: expose min_slab_pages in /proc/zoneinfo Date: Mon, 27 May 2019 19:52:52 +0800 Message-Id: <1558957974-23341-2-git-send-email-laoar.shao@gmail.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1558957974-23341-1-git-send-email-laoar.shao@gmail.com> References: <1558957974-23341-1-git-send-email-laoar.shao@gmail.com> 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: On one of our servers, we find the dentry is continuously growing without shrinking. We're not sure whether that is because reclaimable slab is still less than min_slab_pages. So if we expose min_slab_pages, it would be easy to compare. As we can set min_slab_ratio with sysctl, we should expose the effective min_slab_pages to user as well. That is same with min_unmapped_pages. Signed-off-by: Yafang Shao --- mm/vmstat.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/mm/vmstat.c b/mm/vmstat.c index a7d4933..bb76cfe 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1549,7 +1549,15 @@ static void zoneinfo_show_print(struct seq_file *m, pg_data_t *pgdat, NR_VM_NUMA_STAT_ITEMS], node_page_state(pgdat, i)); } + +#ifdef CONFIG_NUMA + seq_printf(m, "\n %-12s %lu", "min_slab", + pgdat->min_slab_pages); + seq_printf(m, "\n %-12s %lu", "min_unmapped", + pgdat->min_unmapped_pages); +#endif } + seq_printf(m, "\n pages free %lu" "\n min %lu" -- 1.8.3.1