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svc: Avoid performance-degrading unnecessary reschedule

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This commit is contained in:
Zach Hilman
2018-12-02 00:44:40 -05:00
parent 820d81b9a5
commit 3476830b26
2 changed files with 6 additions and 8 deletions
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11
src/core/hle/kernel/svc.cpp
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@ -962,13 +962,13 @@ static void SleepThread(s64 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 (!Core::System::GetInstance().CurrentScheduler().HaveReadyThreads())
if (nanoseconds <= 0 && !Core::System::GetInstance().CurrentScheduler().HaveReadyThreads())
return;
enum class SleepType : s64 {
YieldWithoutLoadBalancing = 0,
YieldWithLoadBalancing = 1,
YieldAndWaitForLoadBalancing = 2,
YieldWithLoadBalancing = -1,
YieldAndWaitForLoadBalancing = -2,
};
if (nanoseconds <= 0) {
@ -998,10 +998,7 @@ static void SleepThread(s64 nanoseconds) {
// Create an event to wake the thread up after the specified nanosecond delay has passed
GetCurrentThread()->WakeAfterDelay(nanoseconds);
Core::System::GetInstance().CpuCore(0).PrepareReschedule();
Core::System::GetInstance().CpuCore(1).PrepareReschedule();
Core::System::GetInstance().CpuCore(2).PrepareReschedule();
Core::System::GetInstance().CpuCore(3).PrepareReschedule();
Core::System::GetInstance().PrepareReschedule();
}
/// Wait process wide key atomic