diff options
| author | Steve Muckle <smuckle@codeaurora.org> | 2014-04-29 14:16:47 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 19:59:18 -0700 |
| commit | cebda4b7a3455755bb20b8e2cee8049fdbeb416d (patch) | |
| tree | 64b5238f5c059e1794aab7bd85295136dcba1fbd /kernel | |
| parent | bb0b8e985911508db6c341b8b0bb2feff4ac603a (diff) | |
sched: window-stats: adjust RQ curr, prev sums on task migration
Adjust cpu's busy time in its recent and previous window upon task
migration. This would enable scheduler to provide better inputs to
cpufreq governor on a cpu's busy time in a given window.
Change-Id: Idec2ca459382e9f46d882da3af53148412d631c6
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
Signed-off-by: Srivatsa Vaddagiri <vatsa@codeaurora.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/sched/core.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 238dfe87ad80..89247c82da3c 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -1623,8 +1623,24 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) p->se.nr_migrations++; perf_event_task_migrate(p); - if (p->state == TASK_RUNNING) +#if defined(CONFIG_SCHED_FREQ_INPUT) || defined(CONFIG_SCHED_HMP) + if (p->on_rq) { + struct rq *src_rq = task_rq(p); + struct rq *dest_rq = cpu_rq(new_cpu); + + p->on_rq = 0; /* Fixme */ update_task_ravg(p, task_rq(p), 0); + p->on_rq = 1; /* Fixme */ + update_task_ravg(dest_rq->curr, dest_rq, 1); + + + src_rq->curr_runnable_sum -= p->ravg.sum; + src_rq->prev_runnable_sum -= p->ravg.prev_window; + dest_rq->curr_runnable_sum += p->ravg.sum; + dest_rq->prev_runnable_sum += p->ravg.prev_window; + } +#endif + } __set_task_cpu(p, new_cpu); |