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NVIDIA Thread create/delete stutter workarounds (#1760)

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* Thread create/delete stutter workarounds Pt 1

* As tiered compilation is disabled, disable quick jit too

Should result in tier 1 compilation all the time

* Fix rebase.
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riperiperi 2020-12-09 22:36:08 +00:00 committed by GitHub
parent 06aa8a7578
commit c9b6be1ef8
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2 changed files with 29 additions and 1 deletions
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4
Ryujinx/Ryujinx.csproj
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@ -1,4 +1,4 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net5.0</TargetFramework>
@ -6,6 +6,8 @@
<OutputType>Exe</OutputType>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<Version>1.0.0-dirty</Version>
<TieredCompilation>false</TieredCompilation>
<TieredCompilationQuickJit>false</TieredCompilationQuickJit>
</PropertyGroup>
<ItemGroup>

26
Ryujinx/Ui/GLRenderer.cs
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@ -240,13 +240,39 @@ namespace Ryujinx.Ui
};
renderLoopThread.Start();
Thread nvStutterWorkaround = new Thread(NVStutterWorkaround)
{
Name = "GUI.NVStutterWorkaround"
};
nvStutterWorkaround.Start();
MainLoop();
renderLoopThread.Join();
nvStutterWorkaround.Join();
Exit();
}
private void NVStutterWorkaround()
{
while (_isActive)
{
// When NVIDIA Threaded Optimization is on, the driver will snapshot all threads in the system whenever the application creates any new ones.
// The ThreadPool has something called a "GateThread" which terminates itself after some inactivity.
// However, it immediately starts up again, since the rules regarding when to terminate and when to start differ.
// This creates a new thread every second or so.
// The main problem with this is that the thread snapshot can take 70ms, is on the OpenGL thread and will delay rendering any graphics.
// This is a little over budget on a frame time of 16ms, so creates a large stutter.
// The solution is to keep the ThreadPool active so that it never has a reason to terminate the GateThread.
// TODO: This should be removed when the issue with the GateThread is resolved.
ThreadPool.QueueUserWorkItem((state) => { });
Thread.Sleep(300);
}
}
protected override bool OnButtonPressEvent(EventButton evnt)
{
_mouseX = evnt.X;