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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2B704CAC582 for ; Sun, 14 Sep 2025 10:09:33 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 7DAD08E0006; Sun, 14 Sep 2025 06:09:32 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 78B948E0001; Sun, 14 Sep 2025 06:09:32 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6C8B98E0006; Sun, 14 Sep 2025 06:09:32 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 59B0D8E0001 for ; Sun, 14 Sep 2025 06:09:32 -0400 (EDT) Received: from smtpin01.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 1F5A71DDC4D for ; Sun, 14 Sep 2025 10:09:32 +0000 (UTC) X-FDA: 83887433784.01.EB817B4 Received: from mxhk.zte.com.cn (mxhk.zte.com.cn [160.30.148.35]) by imf26.hostedemail.com (Postfix) with ESMTP id 595D4140006 for ; Sun, 14 Sep 2025 10:09:28 +0000 (UTC) Authentication-Results: imf26.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=zte.com.cn; spf=pass (imf26.hostedemail.com: domain of xu.xin16@zte.com.cn designates 160.30.148.35 as permitted sender) smtp.mailfrom=xu.xin16@zte.com.cn ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1757844570; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uFLEOCzcpZhNeqPyMXHEYmEtu6NLHOQa5aHDLbifaTw=; b=l6+pG5V52H0a9YMb/K8zxN6paYYaSzMQKkT0s55GARqCtTJ7F+VJZcj+5jEGKWmMSjbdJW /zFJmnLt4QRYgNrLf+ifxQvMjQlFBWOskTPpgNIQtNe6QO0Igz5mB07iA8SthcHfe1iOv3 kLLasr7tfGWqgEOW6eI4IDVR7MODc2A= ARC-Authentication-Results: i=1; imf26.hostedemail.com; dkim=none; dmarc=pass (policy=none) header.from=zte.com.cn; spf=pass (imf26.hostedemail.com: domain of xu.xin16@zte.com.cn designates 160.30.148.35 as permitted sender) smtp.mailfrom=xu.xin16@zte.com.cn ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1757844570; a=rsa-sha256; cv=none; b=fYQt9xiaWNUx8L+pSfyMNRofa/JVsHgz3GVUfNdOP8ZSpIcryaP3FvqRhLx5VJ2AFK3pNJ JonzCgsic/snHmnm8HheuB/WWGsb2iqoowQNTnMKDNlvQ0bOrVA5hdROu84vORujx2HRvu xQvabhIaAe3nQHjhvvIylY8iR74g+4Q= Received: from mse-fl2.zte.com.cn (unknown [10.5.228.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mxhk.zte.com.cn (FangMail) with ESMTPS id 4cPkRB344fz8Xs6y; Sun, 14 Sep 2025 18:09:26 +0800 (CST) Received: from xaxapp04.zte.com.cn ([10.99.98.157]) by mse-fl2.zte.com.cn with SMTP id 58EA9Mnv094684; Sun, 14 Sep 2025 18:09:22 +0800 (+08) (envelope-from xu.xin16@zte.com.cn) Received: from mapi (xaxapp01[null]) by mapi (Zmail) with MAPI id mid32; Sun, 14 Sep 2025 18:09:23 +0800 (CST) Date: Sun, 14 Sep 2025 18:09:23 +0800 (CST) X-Zmail-TransId: 2af968c69453eea-683f6 X-Mailer: Zmail v1.0 Message-ID: <202509141809235737ZDUkOKaORJCGqQOQhM9q@zte.com.cn> In-Reply-To: <20250914180031197jk6ngo5pQjpXkNtNsjzSo@zte.com.cn> References: 20250914180031197jk6ngo5pQjpXkNtNsjzSo@zte.com.cn Mime-Version: 1.0 From: To: Cc: , , , , , , , , , , , Subject: =?UTF-8?B?W1BBVENIIHYyIDUvNV0gRG9jdW1lbnRhdGlvbjogYWRkIEtTTSBzdGF0aXN0aWMgY291bnRlcnMgZGVzY3JpcHRpb24gaW4gY2dyb3VwLXYyLnJzdA==?= Content-Type: text/plain; charset="UTF-8" X-MAIL:mse-fl2.zte.com.cn 58EA9Mnv094684 X-TLS: YES X-SPF-DOMAIN: zte.com.cn X-ENVELOPE-SENDER: xu.xin16@zte.com.cn X-SPF: None X-SOURCE-IP: 10.5.228.133 unknown Sun, 14 Sep 2025 18:09:26 +0800 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 68C69456.000/4cPkRB344fz8Xs6y X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 595D4140006 X-Stat-Signature: keofqox6n97ig1u5gdrwcyg85tr1c3n4 X-HE-Tag: 1757844568-576869 X-HE-Meta: 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 kQvIuhKl B2aUNTPt8JtS+KojFBJq8EmjSbr6618o5k1QmMy6zVG2/A7VXprlNKkZmF1AI2VJrh0aIqibC53Ec5i/MsZsUh1BBepsgdneVoPjH8jXMcpZDVPeFqPeweS4kFUUPY9/8h74zoqIVkCj6cxWJIQZimyIaZbhB3tL4JpAe1fJslJvja2c4erTuZdjVD/uU8p//iAfyO4uiRGnituWU+pKwrPL3kA== 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: List-Subscribe: List-Unsubscribe: From: xu xin This add KSM-related statistic counters description in cgroup-v2.rst, including "ksm_rmap_items", "ksm_zero_pages", "ksm_merging_pages" and "ksm_profit". Signed-off-by: xu xin --- Documentation/admin-guide/cgroup-v2.rst | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst index a1e3d431974c..c8c4faa4e3fd 100644 --- a/Documentation/admin-guide/cgroup-v2.rst +++ b/Documentation/admin-guide/cgroup-v2.rst @@ -1776,6 +1776,23 @@ The following nested keys are defined. up if hugetlb usage is accounted for in memory.current (i.e. cgroup is mounted with the memory_hugetlb_accounting option). + ksm_rmap_items + Number of ksm_rmap_item structures in use. The structure + ksm_rmap_item stores the reverse mapping information for virtual + addresses. KSM will generate a ksm_rmap_item for each + ksm-scanned page of the process. + + ksm_zero_pages + Number of empty pages are merged with kernel zero pages by KSM, + which is only useful when /sys/kernel/mm/ksm/use_zero_pages. + + ksm_merging_pages + Number of pages of this process are involved in KSM merging + (not including ksm_zero_pages). + + ksm_profit + Amount of profitable memory that KSM brings (Saved bytes). + memory.numa_stat A read-only nested-keyed file which exists on non-root cgroups. -- 2.25.1