From 528b19a84287167d7699465e495b196d216b99db Mon Sep 17 00:00:00 2001 From: Fernando Sahmkow Date: Sun, 5 Apr 2020 09:48:53 -0400 Subject: General: Tune the priority of main emulation threads so they have higher priority than less important helper threads. --- src/common/thread.cpp | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) (limited to 'src/common/thread.cpp') diff --git a/src/common/thread.cpp b/src/common/thread.cpp index c9684aed9..33c8437f5 100644 --- a/src/common/thread.cpp +++ b/src/common/thread.cpp @@ -25,6 +25,52 @@ namespace Common { +#ifdef _WIN32 + +void SetCurrentThreadPriority(ThreadPriority new_priority) { + auto handle = GetCurrentThread(); + int windows_priority = 0; + switch (new_priority) { + case ThreadPriority::Low: + windows_priority = THREAD_PRIORITY_BELOW_NORMAL; + break; + case ThreadPriority::Normal: + windows_priority = THREAD_PRIORITY_NORMAL; + break; + case ThreadPriority::High: + windows_priority = THREAD_PRIORITY_ABOVE_NORMAL; + break; + case ThreadPriority::VeryHigh: + windows_priority = THREAD_PRIORITY_HIGHEST; + break; + default: + windows_priority = THREAD_PRIORITY_NORMAL; + break; + } + SetThreadPriority(handle, windows_priority); +} + +#else + +void SetCurrentThreadPriority(ThreadPriority new_priority) { + pthread_t this_thread = pthread_self(); + + s32 max_prio = sched_get_priority_max(SCHED_OTHER); + s32 min_prio = sched_get_priority_min(SCHED_OTHER); + u32 level = static_cast(new_priority) + 1; + + struct sched_param params; + if (max_prio > min_prio) { + params.sched_priority = min_prio + ((max_prio - min_prio) * level) / 4; + } else { + params.sched_priority = min_prio - ((min_prio - max_prio) * level) / 4; + } + + pthread_setschedparam(this_thread, SCHED_OTHER, ¶ms); +} + +#endif + #ifdef _MSC_VER // Sets the debugger-visible name of the current thread. -- cgit v1.2.3