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U2FsdGVkX1/JqMWc6wVJ0PPqAkQu9q3CCReX8Br4948lT4/XrkDoE/VFATVq0+nu9BaNql9OCO/NRCpDMGPhc8XMpRPesVThOCAxccNqR6+Ks6/cIJszxkGM6XD6FWuW3b3cyXuELJLwtewT/g3xZozgi/ytCMI7x3XXdf/OrXarTQrI3KhJPks+UFxp1gGXwDX5KqdXe2bnyh9tjHpQ6cIXsKLT9xmefLbc6YNiBoOEGlQyrdKcvskOJXQ3AB6EIsDMeXt8HGpUFZ302ZwXI3dnopPcnKLtIFn75rwE4xy2wEKRP63REXXuQWRt1XsTvOk8L3rTvjl48DA97DxOzk9VFsms7OJ2JoMUTF+ckd5rT2eh41Gz2k+KyOE2mgcGx8vu90ErJvUN+fy2GyHuQuK0bZXDOcqFdNmqZJW/mz4DrMQNxUk/faQtNDA0+ycQMp9Llrc3UpOvm2SmruMDpaXkbUskGSS+KIF+S0gWhraDSkpHSlqgCGxLMy0NW94x9dcpJ8czL88LRW/H46hDjNW281eghbms7zmBM5w/uuLcbixzenNmJnVflgb2kf7P+FhOxQ3OBpXUomzjJkdJUwBCTiJe8qu4NofLnvirICw+unapxecs3byFBUoSdaMO3gQtGHh6ypYMf8Sp1z9QVBZlbXJ0KTeUs50y4cgCec7PzHSqoVVDq1VuHDpGK/CE+hNyFEnJnPPQ1IEXsPfXkocNjD8u9kuRQ+3TipoYmSofOvfQLTep/KFrj0nel/tcaB1ddpWyjdyZqlE7iN85rRq/4s/M4lIUHXKQ62EoFWdnOxXEr52eHovOIA8C9KE2cKfzAJg3uucwJkzvhCFuUk6BJ3KF/Ld5Mnl2Z+9H6fB5EWJORzOB+hna319lvBMrlp6hmC9cFHz0TKmdlJ1NJ1p6HuRFrOlHSP0uNXmdFgwUwXukHVwj4dliwmmNhaABe7J6PZgVtf1m3ktjk3q t2EvBweg 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Mar 02, 2026 at 09:56:38AM +0100, Michal Hocko wrote: > On Fri 27-02-26 16:15:55, Benjamin Lee McQueen wrote: > > on systems of different sizes, the fixed 512 page window may not > > be suitable and cause excessive false positive memory pressure > > notifications. > > Please be more specific about the issue you are trying to have fixed. > The above is way too generic. How much memory the system has, what do > you consider false positive and why. What is the workload. Etc... > > > or should window size be capped to avoid excessive notification > > delays on very large systems? > > > > v2: better commit msg, also tried to fix the whitespace. > > Also please refrain from sending new versions in a quick succession > and wait for more feedback to come. > > Last but not lease if this is a more of an idea rather than something > aimed to be merged make the fact explicit by RFC prefix to PATCH. > > There is much more you can read about the process in Documentation/process/ > Agree on all points here. I'm also concerned that by simply adding this conjectured approach without a _lot_ of careful testing and examination of real-world cases you risk causing issues/breaking real world user's assumptions. This is pretty sensitive code. Definitely this kind of potentially invasive change should always be submitted as an RFC to begin with. > Thanks > -- > Michal Hocko > SUSE Labs Cheers, Lorenzo