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| author | SeongJae Park <sj@kernel.org> | 2021-11-05 23:48:10 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-06 23:30:46 +0300 |
| commit | 82e3fff55d0010310d3ee9005fec366c9cb3836a (patch) | |
| tree | fa2f661388d338713cb2c2cdb7fba9f05a782bb7 /Documentation/admin-guide/mm | |
| parent | b5ca3e83ddb05342b1b30700b999cb9b107511f6 (diff) | |
| download | linux-82e3fff55d0010310d3ee9005fec366c9cb3836a.tar.xz | |
Docs/admin-guide/mm/damon/start: fix wrong example commands
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outdated, missing sudo, or just wrong.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>
Diffstat (limited to 'Documentation/admin-guide/mm')
| -rw-r--r-- | Documentation/admin-guide/mm/damon/start.rst | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/admin-guide/mm/damon/start.rst b/Documentation/admin-guide/mm/damon/start.rst index 51503cf90ca2..3ad8bbed9b18 100644 --- a/Documentation/admin-guide/mm/damon/start.rst +++ b/Documentation/admin-guide/mm/damon/start.rst @@ -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 |