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Docs/admin-guide/mm/damon/start: fix wrong example commands

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Patch series "Fix trivial nits in Documentation/admin-guide/mm".

This patchset fixes trivial nits in admin guide documents for DAMON and
pagemap.

This patch (of 4):

Some of the example commands in DAMON getting started guide are
outdated, missing sudo, or just wrong.  This fixes those.

Link: https://lkml.kernel.org/r/20211022090311.3856-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
SeongJae Park 2021-11-05 13:48:10 -07:00 committed by Linus Torvalds
parent b5ca3e83dd
commit 82e3fff55d
1 changed files with 7 additions and 7 deletions
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14
Documentation/admin-guide/mm/damon/start.rst
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@ -19,7 +19,7 @@ your workload. ::
# mount -t debugfs none /sys/kernel/debug/
# git clone https://github.com/awslabs/damo
# ./damo/damo record $(pidof <your workload>)
# ./damo/damo report heat --plot_ascii
# ./damo/damo report heats --heatmap stdout
The final command draws the access heatmap of ``<your workload>``. The heatmap
shows which memory region (x-axis) is accessed when (y-axis) and how frequently
@ -94,9 +94,9 @@ Visualizing Recorded Patterns
The following three commands visualize the recorded access patterns and save
the results as separate image files. ::
$ damo report heats --heatmap access_pattern_heatmap.png
$ damo report wss --range 0 101 1 --plot wss_dist.png
$ damo report wss --range 0 101 1 --sortby time --plot wss_chron_change.png
$ sudo damo report heats --heatmap access_pattern_heatmap.png
$ sudo damo report wss --range 0 101 1 --plot wss_dist.png
$ sudo damo report wss --range 0 101 1 --sortby time --plot wss_chron_change.png
- ``access_pattern_heatmap.png`` will visualize the data access pattern in a
heatmap, showing which memory region (y-axis) got accessed when (x-axis)
@ -115,9 +115,9 @@ Data Access Pattern Aware Memory Management
Below three commands make every memory region of size >=4K that doesn't
accessed for >=60 seconds in your workload to be swapped out. ::
$ echo "#min-size max-size min-acc max-acc min-age max-age action" > scheme
$ echo "4K max 0 0 60s max pageout" >> scheme
$ damo schemes -c my_thp_scheme <pid of your workload>
$ echo "#min-size max-size min-acc max-acc min-age max-age action" > test_scheme
$ echo "4K max 0 0 60s max pageout" >> test_scheme
$ damo schemes -c test_scheme <pid of your workload>
.. [1] https://damonitor.github.io/doc/html/v17/admin-guide/mm/damon/start.html#visualizing-recorded-patterns
.. [2] https://damonitor.github.io/test/result/visual/latest/rec.heatmap.1.png.html