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ANDROID: sched: Add trace for __setscheduler_uclamp

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To know per-task uclamp request.

Bug: 191973176
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ibd40391f2228db5daa410198339237879e67a078
Signed-off-by: Will McVicker <willmcvicker@google.com>
This commit is contained in:
Rick Yiu
2021-06-28 14:56:29 +08:00
committed by Will McVicker
parent e1061a9371
commit d5ac029741
3 changed files with 7 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -202,3 +202,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_get);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_util_est_update);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_setscheduler_uclamp);

4
include/trace/hooks/sched.h
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@@ -341,6 +341,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_util_est_update,
TP_PROTO(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep, int *ret),
TP_ARGS(cfs_rq, p, task_sleep, ret), 1);
DECLARE_HOOK(android_vh_setscheduler_uclamp,
TP_PROTO(struct task_struct *tsk, int clamp_id, unsigned int value),
TP_ARGS(tsk, clamp_id, value));
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_SCHED_H */

2
kernel/sched/core.c
View File

@@ -1909,12 +1909,14 @@ static void __setscheduler_uclamp(struct task_struct *p,
attr->sched_util_min != -1) {
uclamp_se_set(&p->uclamp_req[UCLAMP_MIN],
attr->sched_util_min, true);
trace_android_vh_setscheduler_uclamp(p, UCLAMP_MIN, attr->sched_util_min);
}
if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MAX &&
attr->sched_util_max != -1) {
uclamp_se_set(&p->uclamp_req[UCLAMP_MAX],
attr->sched_util_max, true);
trace_android_vh_setscheduler_uclamp(p, UCLAMP_MAX, attr->sched_util_max);
}
}