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Changed the Sleep() behavior as posted by Jake.Stine in Issue 29. Improves smoothness in games running fullspeed, and lets pcsx2 use the cpu time it needs :) 

(Note: You'll see constantly 100% cpu usage now, but pcsx2 doesn't do any "more" work.)

git-svn-id: http://pcsx2-playground.googlecode.com/svn/trunk@237 a6443dda-0b58-4228-96e9-037be469359c
This commit is contained in:
ramapcsx2 2008-10-25 13:37:48 +00:00 committed by Gregory Hainaut
parent 39f363262b
commit d72cacbdd4
5 changed files with 32 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
pcsx2/Counters.c
View File

@ -175,7 +175,7 @@ void FrameLimiter()
if ((diff>>3)>iTicks) iExpectedEnd=iEnd;
}
else do {
Sleep(1);
_TIMESLICE();
iEnd = GetCPUTicks();
} while (iEnd<iExpectedEnd);

6
pcsx2/FiFo.c
View File

@ -162,11 +162,7 @@ void WriteFIFO(u32 mem, u64 *value) {
//commiting every 16 bytes
while( FIFOto_write((void*)value, 1) == 0 ) {
SysPrintf("IPU sleeping\n");
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
} else {
SysPrintf("WriteFIFO Unknown %x\n", mem);

39
pcsx2/GS.cpp
View File

@ -230,11 +230,7 @@ void gsWaitGS()
}
else {
while( g_pGSRingPos != g_pGSWritePos ) {
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
}
}
@ -305,11 +301,7 @@ u8* GSRingBufCopy(void* mem, u32 size, u32 type)
while( writepos < tempbuf || tempbuf == GS_RINGBUFFERBASE ) {
if( !CHECK_DUALCORE ) {
GS_SETEVENT();
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
tempbuf = *(volatile PU8*)&g_pGSRingPos;
@ -329,11 +321,7 @@ u8* GSRingBufCopy(void* mem, u32 size, u32 type)
while(tempbuf == GS_RINGBUFFERBASE && tempbuf != *(volatile PU8*)&g_pGSWritePos) {
if( !CHECK_DUALCORE ) {
GS_SETEVENT();
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
tempbuf = *(volatile PU8*)&g_pGSRingPos;
@ -343,11 +331,7 @@ u8* GSRingBufCopy(void* mem, u32 size, u32 type)
while( writepos < tempbuf && (writepos+size >= tempbuf || (writepos+size == GS_RINGBUFFEREND && tempbuf == GS_RINGBUFFERBASE)) ) {
if( !CHECK_DUALCORE ) {
GS_SETEVENT();
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
tempbuf = *(volatile PU8*)&g_pGSRingPos;
@ -373,11 +357,7 @@ void GSRingBufSimplePacket(int type, int data0, int data1, int data2)
do {
if( !CHECK_DUALCORE ) {
GS_SETEVENT();
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
tempbuf = *(volatile PU8*)&g_pGSRingPos;
@ -397,11 +377,7 @@ void GSRingBufSimplePacket(int type, int data0, int data1, int data2)
while(tempbuf == GS_RINGBUFFERBASE && tempbuf != *(volatile PU8*)&g_pGSWritePos) {
if( !CHECK_DUALCORE ) {
GS_SETEVENT();
#ifdef _WIN32
Sleep(1);
#else
usleep(500);
#endif
_TIMESLICE();
}
tempbuf = *(volatile PU8*)&g_pGSRingPos;
@ -1471,6 +1447,7 @@ int HasToExit()
}
#if defined(_WIN32) && !defined(WIN32_PTHREADS)
//#pragma optimize ("",off) //needed for a working PGO build
DWORD WINAPI GSThreadProc(LPVOID lpParam)
{
HANDLE handles[2] = { g_hGsEvent, g_hVuGSExit };
@ -1744,7 +1721,7 @@ ExitGS:
GSclose();
return 0;
}
//#pragma optimize ("",on) //needed for a working PGO build
int gsFreeze(gzFile f, int Mode) {
gzfreeze(PS2MEM_GS, 0x2000);

10
pcsx2/Misc.h
View File

@ -363,5 +363,15 @@ extern __forceinline long InterlockedExchangeAdd(long volatile* Addend, long Val
//#define InterlockedExchangePointerAdd InterlockedExchangeAdd
//#endif
// Timeslice releaser for those many idle loop spots through out PCSX2.
static __forceinline void _TIMESLICE()
{
#ifdef _WIN32
Sleep(0);
#else
usleep(500);
#endif
}
#endif /* __MISC_H__ */

11
pcsx2/windows/WinMain.c
View File

@ -140,7 +140,16 @@ void RunExecute(int run) {
if( GSsetGameCRC != NULL )
GSsetGameCRC(ElfCRC, g_ZeroGSOptions);
if (run) Cpu->Execute();
if (run)
{
// This makes sure the Windows Kernel is using high resolution
// timeslices for Sleep calls.
// (may not make much difference on most desktops but
// can improve performance a lot on laptops).
timeBeginPeriod( 1 );
Cpu->Execute();
timeEndPeriod( 1 );
}
}
int Slots[5] = { -1, -1, -1, -1, -1 };