mm/damon/reclaim: implement memory PSI-driven quota self-tuning

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Support the PSI-driven quota self-tuning from DAMON_RECLAIM by introducing
yet another parameter, 'quota_mem_pressure_us'.  Users can set the desired
amount of memory pressure stall time per each quota reset interval using
the parameter.  Then DAMON_RECLAIM monitor the memory pressure stall time,
specifically system-wide memory 'some' PSI value that increased during the
given time interval, and self-tune the quota using the DAMOS core logic.

Link: https://lkml.kernel.org/r/20240219194431.159606-20-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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SeongJae Park 2024-02-19 11:44:30 -08:00 • committed by Andrew Morton

parent 58dea17d7a

commit 7ce55f8ffd

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mm/damon/reclaim.c

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