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Sun, 21 Sep 2025 23:15:18 +0800 (CST) Date: Sun, 21 Sep 2025 23:15:18 +0800 (CST) X-Zmail-TransId: 2afa68d01686f1c-20a97 X-Mailer: Zmail v1.0 Message-ID: <202509212315188885yTwMVyN-Xn_6tuRc3Zi7@zte.com.cn> In-Reply-To: <20250921230726978agBBWNsPLi2hCp9Sxed1Y@zte.com.cn> References: 20250921230726978agBBWNsPLi2hCp9Sxed1Y@zte.com.cn Mime-Version: 1.0 From: To: , Cc: , , , , , , , , , Subject: =?UTF-8?B?W1BBVENIIGxpbnV4LW5leHQgdjMgNi82XSBEb2N1bWVudGF0aW9uOiBhZGQgS1NNIHN0YXRpc3RpYyBjb3VudGVyc8KgZGVzY3JpcHRpb24=?= Content-Type: text/plain; charset="UTF-8" X-MAIL:mse-fl1.zte.com.cn 58LFFFLK072474 X-TLS: YES X-SPF-DOMAIN: zte.com.cn X-ENVELOPE-SENDER: xu.xin16@zte.com.cn X-SPF: None X-SOURCE-IP: 10.5.228.132 unknown Sun, 21 Sep 2025 23:15:25 +0800 X-Fangmail-Anti-Spam-Filtered: true X-Fangmail-MID-QID: 68D0168D.000/4cV8v10dxDz5PM35 X-Rspamd-Queue-Id: D292A100019 X-Rspam-User: X-Rspamd-Server: rspam07 X-Stat-Signature: 8mdhifzt191s41hxnnr8ck1hw6cq1kqp X-HE-Tag: 1758467727-231175 X-HE-Meta: U2FsdGVkX1+7OzBdAQ15cOl28rcLbq/lni8laA4U2cLP0hPGTE7tJ5CyVx5XVLc1FqHPIilhUKQfmoeQLz3caPpAnsE7jNV17MNqV3ApVKyvAMyof17+LtB/4GjhnZnM4dafqyx0nyhsQWsR1hZ4+1rLSk0CrASY3BjejlzSevXiZiMb3yGcKviqKSeGEpg84Ct03LqtB1cNl8O3zQaOV0nsvNRljihRJl8b34Fp8S5hZSK3ER5Q53iuY5PU4db7+AT9tXPnHoho478kzvSS4d3ZzufqELnfi1dmuKs+e4LsgfpbLNyWlornJH0/u/W53pbihvGzjNlvoGZEMPEhyupTuba97eAAYxtyy75WpXLMtBgQzgaBaav61UpXCOJDTz2Kviwikk3P7dP7/XjdY6SIU7gs3Qy7FJ89hg+POH6tjDAWhDiapJOJi1k/6QErxbM76WUxRagFjjaUSjhHjSNRIiRbndL9PmzfcRCZWQQHruc67PUzvXYDGWxd6xvVJRWOag/DAwOXOHihm8jyzehHLK7RjDs6qR1JqqzeCTiyNzPqg49ACjBdWKHexqmn+uGxCzm+jcPH0fioGirMTRx6q+cSEOlB5JApM/4LxBqDXvgmmZfTAmqzozZ9b/yRktONIso3zX3cLq13indK4K6GTypNr/VwN+VRbwSCXOXRzhNWrOrkgVyH/KhwLkhnQIleS4ZL+OjIDmvoO368ljoYr92nIHmgThadWxe6kCW1BVMWlE5S7/IqtCrdT8/174CS2KhDR9qm8YYQ9pms1rMLQvE+VxrHUK3ex1PhXuqAOejsEyYDmJYHa3zqUlEI2Z/5emzrdQBeG9pupEzo789SXiqwwF4Tr+2sWe8io4V1I/zZwfY4ApPPgrXM3xmT3PGZu77UnvBBeeXnfokxQ7xWOfAlZpm6wn1Vi6to0M/Ju68RLW2P+lWU+IlMCPKrwJSQHVC8UNV10K4vMbR dK+uySxO OgLPo36qvP+JZS4qjMoRMCU7OM4tj11DD3h/PZqTnJj6SiBqta+IpskxBhlZFCkcAk+F47Lt0y/PEOBJK98RX8lbVkfMsHz6VPEniFFVTpYfVk4j4ANveA7YJ8xZv1oV7GnpxklZQpREcRnJtx+YYBgN6gGyGpO6J9QT/MIKENts8y/U= 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