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Lock the DSP thread on its own core when using "Lock threads to cores" and "LLE on Thread". Greatly improves DSPLLE performance on Linux with >= 3 cores CPUs.

This commit is contained in:
Pierre Bourdon 2012-05-02 07:17:08 +02:00
parent f28e0cff15
commit 5e2d692cec
1 changed files with 23 additions and 0 deletions
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23
Source/Core/Core/Src/HW/DSPLLE/DSPLLE.cpp
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@ -24,6 +24,8 @@
#include "Thread.h" #include "Thread.h"
#include "ChunkFile.h" #include "ChunkFile.h"
#include "IniFile.h" #include "IniFile.h"
#include "ConfigManager.h"
#include "CPUDetect.h"
#include "DSPLLEGlobals.h" // Local #include "DSPLLEGlobals.h" // Local
#include "DSP/DSPInterpreter.h" #include "DSP/DSPInterpreter.h"
@ -84,6 +86,27 @@ void DSPLLE::dsp_thread(DSPLLE *dsp_lle)
{ {
Common::SetCurrentThreadName("DSP thread"); Common::SetCurrentThreadName("DSP thread");
if (SConfig::GetInstance().m_LocalCoreStartupParameter.bLockThreads)
{
if (cpu_info.num_cores > 3)
{
// HACK (delroth): there is no way to know where hyperthreads are in
// the current Dolphin version.
bool windows = false;
#ifdef _WIN32
windows = true;
#endif
u8 core_id;
if (windows && cpu_info.num_cores > 4) // Probably HT
core_id = 5; // 3rd non HT core
else
core_id = 3; // 3rd core
Common::SetCurrentThreadAffinity(1 << core_id);
}
}
while (dsp_lle->m_bIsRunning) while (dsp_lle->m_bIsRunning)
{ {
int cycles = (int)dsp_lle->m_cycle_count; int cycles = (int)dsp_lle->m_cycle_count;