diff options
| author | Subv <subv2112@gmail.com> | 2017-01-05 14:14:22 -0500 |
|---|---|---|
| committer | Subv <subv2112@gmail.com> | 2017-01-05 19:11:34 -0500 |
| commit | fc2266130b450952777cd3a9e47adb36960de8e7 (patch) | |
| tree | 98c4540c61e35fb29e1572583bd54a6dee080c22 /src/core/hle/svc.cpp | |
| parent | f20d872643654c574f73a263f032613046900f07 (diff) | |
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.
Diffstat (limited to 'src/core/hle/svc.cpp')
| -rw-r--r-- | src/core/hle/svc.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/core/hle/svc.cpp b/src/core/hle/svc.cpp index 855f3af822..50d35ab97a 100644 --- a/src/core/hle/svc.cpp +++ b/src/core/hle/svc.cpp @@ -849,6 +849,11 @@ static ResultCode CancelTimer(Kernel::Handle handle) { static void SleepThread(s64 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 Kernel::WaitCurrentThread_Sleep(); |