AuroraSupport/AuroraRuntime
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[*] Lower idle CPU usage (idle utilization regression)

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This commit is contained in:
Reece Wilson 2023-07-09 13:51:05 +01:00
parent 03dbfeefe1
commit 9a27f3d44b
4 changed files with 32 additions and 7 deletions
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1
Include/Aurora/Runtime.hpp
View File

@ -351,6 +351,7 @@ namespace Aurora
AuUInt8 uSpinLoopPowerA { 7 }; // Nudgable spinloop power. This is our local userland niceness factor; where 1 << n is the amount of yield instructions to stall for
bool bEnableAggressiveScheduling { false };
bool bEnableAgrSchedulingRatelimit { true };
bool bPreferNt51XpMutexesOver8 { false }; // Fun Fact: Undocumented Windows XP APIs are still better than whatever the fuck shit fest they sharted out under Windows Vista and maybe 8.1
bool bPerferNt51XpCondvarsOver8 { false }; // Wth the former set of apis, we are still nothing more than a futex intended for nothing more than x86 bittestandset with undefined
}; // bahviour on the higher bits, and we're crippled by some annoying thread switch function. Windows Vista superseded the dumb kernel-io

28
Source/AuProcAddresses.NT.cpp
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@ -9,6 +9,8 @@
namespace Aurora
{
static bool gShouldResPathDoNothing {};
void InitNTAddresses()
{
#if defined(AURORA_PLATFORM_WIN32)
@ -121,23 +123,39 @@ namespace Aurora
!pNtWaitForKeyedEvent;
gUseNativeWaitCondvar = (pWaitOnAddress &&
!gRuntimeConfig.threadingConfig.bPerferNt51XpCondvarsOver8 &&
(pRtlWaitOnAddress || AuBuild::kCurrentPlatform != AuBuild::EPlatform::ePlatformWin32)) ||
!pNtWaitForKeyedEvent;
!gRuntimeConfig.threadingConfig.bPerferNt51XpCondvarsOver8 &&
(pRtlWaitOnAddress || AuBuild::kCurrentPlatform != AuBuild::EPlatform::ePlatformWin32)) ||
!pNtWaitForKeyedEvent;
gUseNativeWaitSemapahore = bool(pWaitOnAddress);
}
void Win32DropInit()
{
gShouldResPathDoNothing =
(AuBuild::kCurrentPlatform != AuBuild::EPlatform::ePlatformWin32) ||
(!gRuntimeConfig.threadingConfig.bEnableAggressiveScheduling &&
AuSwInfo::IsWindows10OrGreater());
}
void Win32DropSchedulerResolution()
{
static AuUInt uCounter {};
ULONG ullActualResolution {};
if (!gRuntimeConfig.threadingConfig.bEnableAggressiveScheduling &&
AuSwInfo::IsWindows10OrGreater())
if (gShouldResPathDoNothing)
{
return;
}
if (gRuntimeConfig.threadingConfig.bEnableAgrSchedulingRatelimit)
{
if (!((uCounter++) & 128))
{
return;
}
}
if (pZwSetTimerResolution)
{
auto uRet = pZwSetTimerResolution(1, true, &ullActualResolution);

1
Source/AuProcAddresses.NT.hpp
View File

@ -200,5 +200,6 @@ namespace Aurora
inline bool gUseNativeWaitCondvar {};
inline bool gUseNativeWaitSemapahore {};
void Win32DropInit();
void Win32DropSchedulerResolution();
}

9
Source/AuRTEntrypoint.cpp
View File

@ -58,9 +58,8 @@ static void Init()
gRuntimeRunLevel = 1;
tlsHackIsMainThread = true;
#if defined(AURORA_PLATFORM_WIN32)
Aurora::Win32DropSchedulerResolution();
#if defined(AURORA_PLATFORM_WIN32)
Aurora::Extensions::Win32::InitDarkMode();
#endif
@ -73,6 +72,12 @@ static void Init()
Aurora::Threading::InitSleep();
Aurora::Process::InitProcess();
Aurora::SWInfo::InitSwInfo();
#if defined(AURORA_PLATFORM_WIN32)
Aurora::Win32DropInit();
Aurora::Win32DropSchedulerResolution();
#endif
Aurora::Threading::Threads::InitThreading();
Aurora::Exit::InitExit();
Aurora::IO::Net::InitNetworking();