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| author |   Shenghong Han <hanshenghong2019@email.szu.edu.cn> | 2022-03-24 18:08:56 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2022-03-24 19:06:44 -0700 |
| commit | 57f2b54a937987847e666aaf56d207aa457adee6 (patch) | |
| tree | 591ca00a536c66b21cc35061f1014596ccca4bfa /Documentation/vm | |
| parent | tools/vm/page_owner_sort.c: delete invalid duplicate code (diff) | |
| download | linux-dev-57f2b54a937987847e666aaf56d207aa457adee6.tar.xz linux-dev-57f2b54a937987847e666aaf56d207aa457adee6.zip | |
Documentation/vm/page_owner.rst: update the documentation
Update the documentation of ``page_owner``.
[akpm@linux-foundation.org: small grammatical tweaks]
Link: https://lkml.kernel.org/r/20211214134736.2569-1-hanshenghong2019@email.szu.edu.cn
Signed-off-by: Shenghong Han <hanshenghong2019@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Liam Mark <lmark@codeaurora.org>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Cc: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/vm')
| -rw-r--r-- | Documentation/vm/page_owner.rst | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/Documentation/vm/page_owner.rst b/Documentation/vm/page_owner.rst index 905555e3e483..6420097a1f7d 100644 --- a/Documentation/vm/page_owner.rst +++ b/Documentation/vm/page_owner.rst @@ -97,7 +97,7 @@ Usage The ``page_owner_sort`` tool ignores ``PFN`` rows, puts the remaining rows in buf, uses regexp to extract the page order value, counts the times - and pages of buf, and finally sorts them according to the times. + and pages of buf, and finally sorts them according to the parameter(s). See the result about who allocated each page in the ``sorted_page_owner.txt``. General output:: @@ -107,4 +107,23 @@ Usage // Detailed stack By default, ``page_owner_sort`` is sorted according to the times of buf. - If you want to sort by the pages nums of buf, use the ``-m`` parameter. + If you want to sort by the page nums of buf, use the ``-m`` parameter. + The detailed parameters are: + + fundamental function: + + Sort: + -a Sort by memory allocation time. + -m Sort by total memory. + -p Sort by pid. + -r Sort by memory release time. + -s Sort by stack trace. + -t Sort by times (default). + + additional function: + + Cull: + -c Cull by comparing stacktrace instead of total block. + + Filter: + -f Filter out the information of blocks whose memory has not been released. |