Messages in this thread | | | Date | Fri, 7 Feb 2020 11:03:00 +0000 | From | Quentin Perret <> | Subject | Re: [PATCH v4 2/4] sched/topology: Remove SD_BALANCE_WAKE on asymmetric capacity systems |
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On Thursday 06 Feb 2020 at 19:19:55 (+0000), Valentin Schneider wrote: > From: Morten Rasmussen <morten.rasmussen@arm.com> > > SD_BALANCE_WAKE was previously added to lower sched_domain levels on > asymmetric CPU capacity systems by commit 9ee1cda5ee25 ("sched/core: Enable > SD_BALANCE_WAKE for asymmetric capacity systems") to enable the use of > find_idlest_cpu() and friends to find an appropriate CPU for tasks. > > That responsibility has now been shifted to select_idle_sibling() and > friends, and hence the flag can be removed. Note that this causes > asymmetric CPU capacity systems to no longer enter the slow wakeup path > (find_idlest_cpu()) on wakeups - only on execs and forks (which is aligned > with all other mainline topologies). > > Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com> > [Changelog tweaks] > Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Reviewed-by: Quentin Perret <qperret@google.com>
Thanks, Quentin
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