mirror of
https://github.com/citra-mirror/citra.git
synced 2024-08-20 18:33:24 +02:00
Kernel: Don't attempt to yield execution in SleepThread(0) if there are no available threads to run.
With this we avoid an useless temporary deschedule of the current thread.
This commit is contained in:
parent
f20d872643
commit
fc2266130b
@ -556,6 +556,10 @@ SharedPtr<Thread> SetupMainThread(u32 entry_point, s32 priority) {
|
|||||||
return thread;
|
return thread;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
bool HaveReadyThreads() {
|
||||||
|
return ready_queue.get_first() != nullptr;
|
||||||
|
}
|
||||||
|
|
||||||
void Reschedule() {
|
void Reschedule() {
|
||||||
PriorityBoostStarvedThreads();
|
PriorityBoostStarvedThreads();
|
||||||
|
|
||||||
|
@ -218,6 +218,11 @@ private:
|
|||||||
*/
|
*/
|
||||||
SharedPtr<Thread> SetupMainThread(u32 entry_point, s32 priority);
|
SharedPtr<Thread> SetupMainThread(u32 entry_point, s32 priority);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Returns whether there are any threads that are ready to run.
|
||||||
|
*/
|
||||||
|
bool HaveReadyThreads();
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Reschedules to the next available thread (call after current thread is suspended)
|
* Reschedules to the next available thread (call after current thread is suspended)
|
||||||
*/
|
*/
|
||||||
|
@ -849,6 +849,11 @@ static ResultCode CancelTimer(Kernel::Handle handle) {
|
|||||||
static void SleepThread(s64 nanoseconds) {
|
static void SleepThread(s64 nanoseconds) {
|
||||||
LOG_TRACE(Kernel_SVC, "called nanoseconds=%lld", nanoseconds);
|
LOG_TRACE(Kernel_SVC, "called nanoseconds=%lld", nanoseconds);
|
||||||
|
|
||||||
|
// Don't attempt to yield execution if there are no available threads to run,
|
||||||
|
// this way we avoid a useless reschedule to the idle thread.
|
||||||
|
if (nanoseconds == 0 && !Kernel::HaveReadyThreads())
|
||||||
|
return;
|
||||||
|
|
||||||
// Sleep current thread and check for next thread to schedule
|
// Sleep current thread and check for next thread to schedule
|
||||||
Kernel::WaitCurrentThread_Sleep();
|
Kernel::WaitCurrentThread_Sleep();
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user