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author | Dietmar Eggemann <dietmar.eggemann@arm.com> | 2016-08-01 19:53:35 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-08-18 11:26:55 +0200 |
commit | cd92bfd3b8cb0ec2ee825e55a3aee704cd55aea9 (patch) | |
tree | 0171c4b111c37b2749c8bbec00955a8424fb5801 /samples | |
parent | 9ee1cda5ee25c7dd82acf25892e0d229e818f8c7 (diff) | |
download | op-kernel-dev-cd92bfd3b8cb0ec2ee825e55a3aee704cd55aea9.zip op-kernel-dev-cd92bfd3b8cb0ec2ee825e55a3aee704cd55aea9.tar.gz |
sched/core: Store maximum per-CPU capacity in root domain
To be able to compare the capacity of the target CPU with the highest
available CPU capacity, store the maximum per-CPU capacity in the root
domain.
The max per-CPU capacity should be 1024 for all systems except SMT,
where the capacity is currently based on smt_gain and the number of
hardware threads and is <1024. If SMT can be brought to work with a
per-thread capacity of 1024, this patch can be dropped and replaced by a
hard-coded max capacity of 1024 (=SCHED_CAPACITY_SCALE).
Signed-off-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Signed-off-by: Morten Rasmussen <morten.rasmussen@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: freedom.tan@mediatek.com
Cc: keita.kobayashi.ym@renesas.com
Cc: mgalbraith@suse.de
Cc: sgurrappadi@nvidia.com
Cc: vincent.guittot@linaro.org
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/26c69258-9947-f830-a53e-0c54e7750646@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions