Messages in this thread | | | From | Vincent Guittot <> | Subject | [PATCH v2 0/2] Rework interface between scheduler and schedutil governor | Date | Thu, 26 Oct 2023 19:09:11 +0200 |
| |
Following the discussion with Qais [1] about how to handle uclamp requirements and after syncing with him, we agreed that I should move forward on the patchset to rework the interface between scheduler and schedutil governor to provide more information to the latter. Scheduler (and EAS in particular) doesn't need anymore to guess estimate which headroom the governor wants to apply and will directly ask for the target freq. Then the governor directly gets the actual utilization and new minimum and maximum boundaries to select this target frequency and doesn't have to deal anymore with scheduler internals like uclamp when including iowait boost.
[1] https://lore.kernel.org/lkml/CAKfTPtA5JqNCauG-rP3wGfq+p8EEVx9Tvwj6ksM3SYCwRmfCTg@mail.gmail.com/
Changes since v1 - fix a bug (always set max even when returning early) - fix typos
Vincent Guittot (2): sched/schedutil: rework performance estimation sched/schedutil: rework iowait boost
include/linux/energy_model.h | 1 - kernel/sched/core.c | 82 ++++++++++++------------------- kernel/sched/cpufreq_schedutil.c | 72 +++++++++++++++++---------- kernel/sched/fair.c | 22 +++++++-- kernel/sched/sched.h | 84 +++----------------------------- 5 files changed, 103 insertions(+), 158 deletions(-)
-- 2.34.1
| |