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authorSeongJae Park <sj@kernel.org>2021-11-05 23:48:10 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-06 23:30:46 +0300
commit82e3fff55d0010310d3ee9005fec366c9cb3836a (patch)
treefa2f661388d338713cb2c2cdb7fba9f05a782bb7 /Documentation/admin-guide/mm
parentb5ca3e83ddb05342b1b30700b999cb9b107511f6 (diff)
downloadlinux-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 This patch (of 4): Some of the example commands in DAMON getting started guide are outdated, missing sudo, or just wrong.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.rst14
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