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Merge pull request #9414 from DevJPM/master

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Fix CPU Core Count detection and Enable Parallel Shader Compilation
This commit is contained in:
JMC47
2022-01-04 10:15:12 -05:00
committed by GitHub
parent a026ef30d2 f43122cd8a
commit 9a914d33d5
6 changed files with 53 additions and 34 deletions
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20
Source/Core/VideoCommon/VideoConfig.cpp
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@ -12,6 +12,7 @@
#include "Core/ConfigManager.h"
#include "Core/Core.h"
#include "Core/Movie.h"
#include "VideoCommon/DriverDetails.h"
#include "VideoCommon/OnScreenDisplay.h"
#include "VideoCommon/VideoCommon.h"
@ -177,6 +178,14 @@ static u32 GetNumAutoShaderCompilerThreads()
return static_cast<u32>(std::min(std::max(cpu_info.num_cores - 3, 1), 4));
}
static u32 GetNumAutoShaderPreCompilerThreads()
{
// Automatic number. We use clamp(cpus - 2, 1, infty) here.
// We chose this because we don't want to limit our speed-up
// and at the same time leave two logical cores for the dolphin UI and the rest of the OS.
return static_cast<u32>(std::max(cpu_info.num_cores - 2, 1));
}
u32 VideoConfig::GetShaderCompilerThreads() const
{
if (!backend_info.bSupportsBackgroundCompiling)
@ -197,8 +206,17 @@ u32 VideoConfig::GetShaderPrecompilerThreads() const
if (!backend_info.bSupportsBackgroundCompiling)
return 0;
const bool bugDatabaseSupported =
backend_info.api_type == APIType::OpenGL || backend_info.api_type == APIType::Vulkan;
// DirectX has always worked in our tests in PR#9414
const bool multiThreadingWorking =
!bugDatabaseSupported ||
!DriverDetails::HasBug(DriverDetails::BUG_BROKEN_MULTITHREADED_SHADER_PRECOMPILATION);
if (iShaderPrecompilerThreads >= 0)
return static_cast<u32>(iShaderPrecompilerThreads);
else if (multiThreadingWorking)
return GetNumAutoShaderPreCompilerThreads();
else
return GetNumAutoShaderCompilerThreads();
return 1;
}