diff options
| author | liwenyu <wenyuli@ex.bilibili.com> | 2023-09-20 17:38:49 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-10-06 14:44:10 -0700 |
| commit | 76a0fb4fd5c940fe4977f2fbdb08167fa16e32f6 (patch) | |
| tree | 244ced6cc521dc7a2001d09dd3c038af07045eb5 /include | |
| parent | 7ced098fcfe596feab3cea4f40128b0119c7bf1a (diff) | |
delayacct: add memory reclaim delay in get_page_from_freelist
The current memory reclaim delay statistics only count the direct memory
reclaim of the task in do_try_to_free_pages(). In systems with NUMA open,
some tasks occasionally experience slower response times, but the total
count of reclaim does not increase, using ftrace can show that
node_reclaim has occurred.
The memory reclaim occurring in get_page_from_freelist() is also due to
heavy memory load. To get the impact of tasks in memory reclaim, this
patch adds the statistics of the memory reclaim delay statistics for
__node_reclaim().
Link: https://lkml.kernel.org/r/181C946095F0252B+7cc60eca-1abf-4502-aad3-ffd8ef89d910@ex.bilibili.com
Signed-off-by: Wen Yu Li <wenyuli@ex.bilibili.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: <wangyun@bilibili.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions