Re: [PATCH] delayacct: add memory reclaim delay in get_page_from_freelist

[liwenyu]

> 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.

There is no need to change the 
Documentation/accounting/delay-accounting.rst, because this patch is 
only an expansion of  memory reclaim delayacct.

Thanks!