Messages in this thread | | | From | Daniel Drake <> | Date | Tue, 17 Jul 2018 07:13:52 -0500 | Subject | Re: [PATCH 0/10] psi: pressure stall information for CPU, memory, and IO v2 |
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On Tue, Jul 17, 2018 at 6:25 AM, Michal Hocko <mhocko@kernel.org> wrote: > Yes this is really unfortunate. One thing that could help would be to > consider a trashing level during the reclaim (get_scan_count) to simply > forget about LRUs which are constantly refaulting pages back. We already > have the infrastructure for that. We just need to plumb it in.
Can you go into a bit more detail about that infrastructure and how we might detect which pages are being constantly refaulted? I'm interested in spending a few hours on this topic to see if I can come up with anything.
Thanks Daniel
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