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perf: use GetReadOnlySequence() instead of GetSpan()

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This commit is contained in:
jhorv 2024-04-13 12:52:15 -04:00
parent 21a73b8ad2
commit 32e5d59107
2 changed files with 13 additions and 9 deletions
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4
src/Ryujinx.HLE/HOS/Kernel/Ipc/KServerSession.cs
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@ -570,7 +570,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Ipc
}
else
{
serverProcess.CpuMemory.Write(copyDst, clientProcess.CpuMemory.GetSpan(copySrc, (int)copySize));
serverProcess.CpuMemory.Write(copyDst, clientProcess.CpuMemory.GetReadOnlySequence(copySrc, (int)copySize));
}
if (clientResult != Result.Success)
@ -858,7 +858,7 @@ namespace Ryujinx.HLE.HOS.Kernel.Ipc
}
else
{
clientProcess.CpuMemory.Write(copyDst, serverProcess.CpuMemory.GetSpan(copySrc, (int)copySize));
clientProcess.CpuMemory.Write(copyDst, serverProcess.CpuMemory.GetReadOnlySequence(copySrc, (int)copySize));
}
}

18
src/Ryujinx.HLE/HOS/Kernel/Memory/KPageTableBase.cs
View file

@ -1569,7 +1569,11 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
while (size > 0)
{
ulong copySize = 0x100000; // Copy chunck size. Any value will do, moderate sizes are recommended.
// Copy chunk size. Previous impl created copies to write using GetSpan(), and moderate sizes
// were recommended to avoid allocating very large temporary buffers. Since moving to use
// ReadOnlySequence<byte> and reading directly, we set the copySize to the max size of a
// segment: Int32.MaxValue.
ulong copySize = int.MaxValue;
if (copySize > size)
{
@ -1578,11 +1582,11 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
if (toServer)
{
currentProcess.CpuMemory.Write(serverAddress, GetSpan(clientAddress, (int)copySize));
currentProcess.CpuMemory.Write(serverAddress, GetReadOnlySequence(clientAddress, (int)copySize));
}
else
{
Write(clientAddress, currentProcess.CpuMemory.GetSpan(serverAddress, (int)copySize));
Write(clientAddress, currentProcess.CpuMemory.GetReadOnlySequence(serverAddress, (int)copySize));
}
serverAddress += copySize;
@ -1912,9 +1916,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
Context.Memory.Fill(GetDramAddressFromPa(dstFirstPagePa), unusedSizeBefore, (byte)_ipcFillValue);
ulong copySize = addressRounded <= endAddr ? addressRounded - address : size;
var data = srcPageTable.GetSpan(addressTruncated + unusedSizeBefore, (int)copySize);
var data = srcPageTable.GetReadOnlySequence(addressTruncated + unusedSizeBefore, (int)copySize);
Context.Memory.Write(GetDramAddressFromPa(dstFirstPagePa + unusedSizeBefore), data);
((IWritableBlock)Context.Memory).Write(GetDramAddressFromPa(dstFirstPagePa + unusedSizeBefore), data);
firstPageFillAddress += unusedSizeBefore + copySize;
@ -1978,9 +1982,9 @@ namespace Ryujinx.HLE.HOS.Kernel.Memory
if (send)
{
ulong copySize = endAddr - endAddrTruncated;
var data = srcPageTable.GetSpan(endAddrTruncated, (int)copySize);
var data = srcPageTable.GetReadOnlySequence(endAddrTruncated, (int)copySize);
Context.Memory.Write(GetDramAddressFromPa(dstLastPagePa), data);
((IWritableBlock)Context.Memory).Write(GetDramAddressFromPa(dstLastPagePa), data);
lastPageFillAddr += copySize;