On Wed, 20 Sep 2023 17:38:49 +0800 liwenyu <wenyuli@xxxxxxxxxxxxxxx> wrote: > 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(). Please review Documentation/accounting/delay-accounting.rst, see if there is some change we can make to reflect this patch. Your email client is wordwrapping the patches - please check that for next time.
