41 lines
1.1 KiB
ReStructuredText
41 lines
1.1 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0+
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================
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Memcg Memfs Info
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================
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Overview
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========
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Support to print rootfs files and tmpfs files that having pages charged
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in given memory cgroup. The files infomations can be printed through
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interface "memory.memfs_files_info" or printed when OOM is triggered.
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User control
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============
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1. /sys/kernel/mm/memcg_memfs_info/enable
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-----------------------------------------
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Boolean type. The default value is 0, set it to 1 to enable the feature.
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2. /sys/kernel/mm/memcg_memfs_info/max_print_files_in_oom
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---------------------------------------------------------
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Unsigned long type. The default value is 500, indicating that the maximum of
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files can be print to console when OOM is triggered.
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3. /sys/kernel/mm/memcg_memfs_info/size_threshold
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-------------------------------------------------
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Unsigned long type. The default value is 0, indicating that the minimum size of
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files that can be printed.
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4. /sys/fs/cgroup/memory/<memory>/memory.memfs_files_info
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---------------------------------------------------------
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Outputs the files who use memory in this memory cgroup.
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---
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Liu Shixin, Jan 2022
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