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Code Issues Releases Activity

Vulkan: Device map buffers written more than flushed (#4911)

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riperiperi 2023-05-13 14:15:05 +01:00 committed by GitHub
parent aae4595bdb
commit 17ba217940
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1 changed files with 19 additions and 5 deletions
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24
src/Ryujinx.Graphics.Vulkan/BufferHolder.cs
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@ -56,6 +56,7 @@ namespace Ryujinx.Graphics.Vulkan
private int _writeCount;
private int _flushCount;
private int _flushTemp;
private int _lastFlushWrite = -1;
private ReaderWriterLock _flushLock;
private FenceHolder _flushFence;
@ -200,14 +201,21 @@ namespace Ryujinx.Graphics.Vulkan
{
if (_baseType == BufferAllocationType.Auto)
{
if (_writeCount >= WriteCountThreshold || _setCount >= SetCountThreshold || _flushCount >= FlushCountThreshold)
// When flushed, wait for a bit more info to make a decision.
bool wasFlushed = _flushTemp > 0;
int multiplier = wasFlushed ? 2 : 0;
if (_writeCount >= (WriteCountThreshold << multiplier) || _setCount >= (SetCountThreshold << multiplier) || _flushCount >= (FlushCountThreshold << multiplier))
{
if (_flushCount > 0 || _flushTemp-- > 0)
{
// Buffers that flush should ideally be mapped in host address space for easy copies.
// If the buffer is large it will do better on GPU memory, as there will be more writes than data flushes (typically individual pages).
// If it is small, then it's likely most of the buffer will be flushed so we want it on host memory, as access is cached.
DesiredType = Size > DeviceLocalSizeThreshold ? BufferAllocationType.DeviceLocalMapped : BufferAllocationType.HostMapped;
bool hostMappingSensitive = _gd.Vendor == Vendor.Nvidia;
bool deviceLocalMapped = Size > DeviceLocalSizeThreshold || (wasFlushed && _writeCount > _flushCount * 10 && hostMappingSensitive) || _currentType == BufferAllocationType.DeviceLocalMapped;
DesiredType = deviceLocalMapped ? BufferAllocationType.DeviceLocalMapped : BufferAllocationType.HostMapped;
// It's harder for a buffer that is flushed to revert to another type of mapping.
if (_flushCount > 0)
@ -215,17 +223,18 @@ namespace Ryujinx.Graphics.Vulkan
_flushTemp = 1000;
}
}
else if (_writeCount >= WriteCountThreshold)
else if (_writeCount >= (WriteCountThreshold << multiplier))
{
// Buffers that are written often should ideally be in the device local heap. (Storage buffers)
DesiredType = BufferAllocationType.DeviceLocal;
}
else if (_setCount > SetCountThreshold)
else if (_setCount > (SetCountThreshold << multiplier))
{
// Buffers that have their data set often should ideally be host mapped. (Constant buffers)
DesiredType = BufferAllocationType.HostMapped;
}
_lastFlushWrite = -1;
_flushCount = 0;
_writeCount = 0;
_setCount = 0;
@ -418,7 +427,12 @@ namespace Ryujinx.Graphics.Vulkan
WaitForFlushFence();
_flushCount++;
if (_lastFlushWrite != _writeCount)
{
// If it's on the same page as the last flush, ignore it.
_lastFlushWrite = _writeCount;
_flushCount++;
}
Span<byte> result;