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Add a CVar, r.ShaderPipelineCache.StartupMode to control what mode the PipelineCache starts in so we can control whether it starts paused (0), in 'fast' mode (1 - default), or in 'background' mode (2).

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[CL 4653129 by Mark Satterthwaite in Dev-Rendering branch]
This commit is contained in:
Mark Satterthwaite
2018-12-12 11:27:43 -05:00
parent d9d883929a
commit fae5fe9fbe
1 changed files with 31 additions and 0 deletions
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Engine/Source/Runtime/RenderCore/Private/ShaderPipelineCache.cpp
+31
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@@ -44,6 +44,18 @@ namespace FShaderPipelineCacheConstants
static TCHAR const* GameVersionKey = TEXT("GameVersion");
}
static TAutoConsoleVariable<int32> CVarPSOFileCacheStartupMode(
TEXT("r.ShaderPipelineCache.StartupMode"),
1,
TEXT("Sets the startup mode for the PSO cache, determining what the cache does after initialisation:\n")
TEXT("\t0: Precompilation is paused and nothing will compile until a call to ResumeBatching().\n")
TEXT("\t1: Precompilation is enabled in the 'Fast' mode.\n")
TEXT("\t2: Precompilation is enabled in the 'Background' mode.\n")
TEXT("Default is 1."),
ECVF_Default | ECVF_RenderThreadSafe
);
static TAutoConsoleVariable<int32> CVarPSOFileCacheBackgroundBatchSize(
TEXT("r.ShaderPipelineCache.BackgroundBatchSize"),
1,
@@ -1029,6 +1041,25 @@ FShaderPipelineCache::FShaderPipelineCache(EShaderPlatform Platform)
SET_DWORD_STAT(STAT_ShaderPipelineWaitingTaskCount, 0);
SET_DWORD_STAT(STAT_ShaderPipelineActiveTaskCount, 0);
int32 Mode = CVarPSOFileCacheStartupMode.GetValueOnAnyThread();
switch (Mode)
{
case 0:
BatchSize = CVarPSOFileCacheBatchSize.GetValueOnAnyThread();
BatchTime = CVarPSOFileCacheBatchTime.GetValueOnAnyThread();
bPaused = true;
break;
case 2:
BatchSize = CVarPSOFileCacheBackgroundBatchSize.GetValueOnAnyThread();
BatchTime = CVarPSOFileCacheBackgroundBatchTime.GetValueOnAnyThread();
break;
case 1:
default:
BatchSize = CVarPSOFileCacheBatchSize.GetValueOnAnyThread();
BatchTime = CVarPSOFileCacheBatchTime.GetValueOnAnyThread();
break;
}
BatchSize = CVarPSOFileCacheBatchSize.GetValueOnAnyThread();
BatchTime = CVarPSOFileCacheBatchTime.GetValueOnAnyThread();