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| author | Junjie Wu <junjiew@codeaurora.org> | 2016-01-05 10:53:30 -0800 |
|---|---|---|
| committer | Arvin Quilao <arquilao@gmail.com> | 2017-03-16 05:39:43 +0000 |
| commit | 5b7d255bb491272f1967fcf57a94d573b3bf47ac (patch) | |
| tree | 4641655cbc292b0f733e00bddf6a3240edcedb4e /tools/perf/scripts/python/syscall-counts.py | |
| parent | 4590668c49ea3396128af7defbd580148cf0528d (diff) | |
sched: Provide a wake up API without sending freq notifications
Each time a task wakes up, scheduler evaluates its load and notifies
governor if the resulting frequency of destination CPU is larger than
a threshold. However, some governor wakes up a separate task that
handles frequency change, which again calls wake_up_process().
This is dangerous because if the task being woken up meets the
threshold and ends up being moved around, there is a potential for
endless recursive notifications.
Introduce a new API for waking up a task without triggering
frequency notification.
Change-Id: I24261af81b7dc410c7fb01eaa90920b8d66fbd2a
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions