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For #2194, Core: Refine yield for high performance timer.

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winlin 2021-02-11 22:49:08 +08:00
parent 4fc1a19415
commit a04dd7ed30
3 changed files with 16 additions and 8 deletions
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15
trunk/3rdparty/st-srs/sched.c vendored
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@ -67,6 +67,7 @@ unsigned long long _st_stat_sched_s = 0;
unsigned long long _st_stat_thread_run = 0;
unsigned long long _st_stat_thread_idle = 0;
unsigned long long _st_stat_thread_yield = 0;
unsigned long long _st_stat_thread_yield2 = 0;
#endif
@ -559,11 +560,6 @@ void st_thread_yield()
{
_st_thread_t *me = _ST_CURRENT_THREAD();
// If not thread in RunQ to yield to, ignore and continue to run.
if (_ST_RUNQ.next == &_ST_RUNQ) {
return;
}
#ifdef DEBUG
++_st_stat_thread_yield;
#endif
@ -571,6 +567,15 @@ void st_thread_yield()
/* Check sleep queue for expired threads */
_st_vp_check_clock();
// If not thread in RunQ to yield to, ignore and continue to run.
if (_ST_RUNQ.next == &_ST_RUNQ) {
return;
}
#ifdef DEBUG
++_st_stat_thread_yield2;
#endif
// Append thread to the tail of RunQ, we will back after all threads executed.
me->state = _ST_ST_RUNNABLE;
_ST_ADD_RUNQ(me);