eb8154908c
remove useless memorybarrier remove double membarrier in wait pm4 cmd add int64 cvar use int64 cvar for x64 feature mask Rework some functions that were frontend bound according to vtune placing some of their code in different noinline functions, profiling after indicating l1 cache misses decreased and perf of func increased remove long vpinsrd dep chain code for conversion.h, instead do normal load+bswap or movbe if avail Much faster entry table via split_map, code size could be improved though GetResolveInfo was very large and had impact on icache, mark callees as noinline + msvc pragma optimize small use log2 shifts instead of integer divides in memory minor optimizations in PhysicalHeap::EnableAccessCallbacks, the majority of time in the function is spent looping, NOT calling Protect! Someone should optimize this function and rework the algo completely remove wonky scheduling log message, it was spammy and unhelpful lock count was unnecessary for criticalsection mutex, criticalsection is already a recursive mutex brief notes i gotta run
74 lines
2.8 KiB
C++
74 lines
2.8 KiB
C++
/**
|
|
******************************************************************************
|
|
* Xenia : Xbox 360 Emulator Research Project *
|
|
******************************************************************************
|
|
* Copyright 2015 Ben Vanik. All rights reserved. *
|
|
* Released under the BSD license - see LICENSE in the root for more details. *
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "xenia/base/mutex.h"
|
|
#if XE_PLATFORM_WIN32 == 1
|
|
#include "xenia/base/platform_win.h"
|
|
#endif
|
|
|
|
namespace xe {
|
|
#if XE_PLATFORM_WIN32 == 1 && XE_ENABLE_FAST_WIN32_MUTEX == 1
|
|
// default spincount for entercriticalsection is insane on windows, 0x20007D0i64
|
|
// (33556432 times!!) when a lock is highly contended performance degrades
|
|
// sharply on some processors todo: perhaps we should have a set of optional
|
|
// jobs that processors can do instead of spinning, for instance, sorting a list
|
|
// so we have better locality later or something
|
|
#define XE_CRIT_SPINCOUNT 128
|
|
/*
|
|
chrispy: todo, if a thread exits before releasing the global mutex we need to
|
|
check this and release the mutex one way to do this is by using FlsAlloc and
|
|
PFLS_CALLBACK_FUNCTION, which gets called with the fiber local data when a
|
|
thread exits
|
|
*/
|
|
|
|
static CRITICAL_SECTION* global_critical_section(xe_global_mutex* mutex) {
|
|
return reinterpret_cast<CRITICAL_SECTION*>(mutex);
|
|
}
|
|
|
|
xe_global_mutex::xe_global_mutex() {
|
|
InitializeCriticalSectionEx(global_critical_section(this), XE_CRIT_SPINCOUNT,
|
|
CRITICAL_SECTION_NO_DEBUG_INFO);
|
|
}
|
|
xe_global_mutex ::~xe_global_mutex() {
|
|
DeleteCriticalSection(global_critical_section(this));
|
|
}
|
|
|
|
void xe_global_mutex::lock() {
|
|
EnterCriticalSection(global_critical_section(this));
|
|
}
|
|
void xe_global_mutex::unlock() {
|
|
LeaveCriticalSection(global_critical_section(this));
|
|
}
|
|
bool xe_global_mutex::try_lock() {
|
|
BOOL success = TryEnterCriticalSection(global_critical_section(this));
|
|
return success;
|
|
}
|
|
|
|
CRITICAL_SECTION* fast_crit(xe_fast_mutex* mutex) {
|
|
return reinterpret_cast<CRITICAL_SECTION*>(mutex);
|
|
}
|
|
xe_fast_mutex::xe_fast_mutex() {
|
|
InitializeCriticalSectionEx(fast_crit(this), XE_CRIT_SPINCOUNT,
|
|
CRITICAL_SECTION_NO_DEBUG_INFO);
|
|
}
|
|
xe_fast_mutex::~xe_fast_mutex() { DeleteCriticalSection(fast_crit(this)); }
|
|
|
|
void xe_fast_mutex::lock() { EnterCriticalSection(fast_crit(this)); }
|
|
void xe_fast_mutex::unlock() { LeaveCriticalSection(fast_crit(this)); }
|
|
bool xe_fast_mutex::try_lock() {
|
|
return TryEnterCriticalSection(fast_crit(this));
|
|
}
|
|
#endif
|
|
// chrispy: moved this out of body of function to eliminate the initialization
|
|
// guards
|
|
static global_mutex_type global_mutex;
|
|
global_mutex_type& global_critical_region::mutex() { return global_mutex; }
|
|
|
|
} // namespace xe
|