Messages in this thread | | | Date | Thu, 4 Aug 2022 10:51:50 +0100 | From | Mel Gorman <> | Subject | Re: [PATCH] sched/fair: no sync wakeup from interrupt context |
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On Thu, Aug 04, 2022 at 10:55:12AM +0200, Ingo Molnar wrote: > > * Libo Chen <libo.chen@oracle.com> wrote: > > > Oh yes, I have no issue with holding the patch back until the regression > > is fully understood. I was just a little confused on your reference to > > Mel's comments. [...] > > Yeah, that was just me getting confused about which change Mel was > referring to, as I was looking for external confirmation saying what I was > thinking about the patch: in_task()/in_interrupt() heuristics rarely do > well. ;-) >
Even though I was referring to something else, the reported regression is still a regression. Prateek's report and what I brought up in https://lore.kernel.org/all/20220715100738.GD3493@suse.de/ are both simply examples where changes to affine wakeup can have surprising results.
-- Mel Gorman SUSE Labs
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