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| author | Jaewon Kim <jaewon31.kim@samsung.com> | 2024-10-11 21:49:28 +0900 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-11-06 20:11:13 -0800 |
| commit | 1f2d03cc535138b7cdbed0122cdc0f9e9626c6bf (patch) | |
| tree | 61b462329afbfa8bbcc1d94e5897fbe12966104f /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | mm: avoid zeroing user movable page twice with init_on_alloc=1 (diff) | |
| download | linux-1f2d03cc535138b7cdbed0122cdc0f9e9626c6bf.tar.gz linux-1f2d03cc535138b7cdbed0122cdc0f9e9626c6bf.zip | |
vmscan: add a vmscan event for reclaim_pages
reclaim_folio_list uses a dummy reclaim_stat and is not being used. To
know the memory stat, add a new trace event. This is useful how how many
pages are not reclaimed or why.
This is an example:
mm_vmscan_reclaim_pages: nid=0 nr_scanned=112 nr_reclaimed=112 nr_dirty=0 nr_writeback=0 nr_congested=0 nr_immediate=0 nr_activate_anon=0 nr_activate_file=0 nr_ref_keep=0 nr_unmap_fail=0
Currently reclaim_folio_list is only called by reclaim_pages, and
reclaim_pages is used by damon and madvise. In the latest Android,
reclaim_pages is also used by shmem to reclaim all pages in a
address_space.
[jaewon31.kim@samsung.com: use sc.nr_scanned rather than new counting]
Link: https://lkml.kernel.org/r/20241016143227.961162-1-jaewon31.kim@samsung.com
Link: https://lkml.kernel.org/r/20241011124928.1224813-1-jaewon31.kim@samsung.com
Signed-off-by: Jaewon Kim <jaewon31.kim@samsung.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Jaewon Kim <jaewon31.kim@samsung.com>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions