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PPTC vs. giant ExeFS. (#2168)

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* PPTC vs. giant ExeFS.

* InternalVersion = 2168

* Add new heuristic algorithm for calculating the number of threads for parallel translations that also takes into account the user's free physical memory and not just the number of CPU cores.

* Nit.

* Add an outer Header structure and add the hashes for both this new structure and the existing "inner" Header structure.

* InternalVersion = 2169
This commit is contained in:
LDj3SNuD 2021-04-13 03:24:36 +02:00 committed by GitHub
parent 7344dee475
commit 90163087a0
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 367 additions and 197 deletions
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50
ARMeilleure/Translation/PTC/DegreeOfParallelism.cs Normal file
View file

@ -0,0 +1,50 @@
using System;
namespace ARMeilleure.Translation.PTC
{
class DegreeOfParallelism
{
public double GiBRef { get; } // GiB.
public double WeightRef { get; } // %.
public double IncrementByGiB { get; } // %.
private double _coefficient;
public DegreeOfParallelism(double gibRef, double weightRef, double incrementByGiB)
{
GiBRef = gibRef;
WeightRef = weightRef;
IncrementByGiB = incrementByGiB;
_coefficient = weightRef - (incrementByGiB * gibRef);
}
public int GetDegreeOfParallelism(int min, int max)
{
double degreeOfParallelism = (GetProcessorCount() * GetWeight(GetAvailableMemoryGiB())) / 100d;
return Math.Clamp((int)Math.Round(degreeOfParallelism), min, max);
}
public static double GetProcessorCount()
{
return (double)Environment.ProcessorCount;
}
public double GetWeight(double gib)
{
return (IncrementByGiB * gib) + _coefficient;
}
public static double GetAvailableMemoryGiB()
{
GCMemoryInfo gcMemoryInfo = GC.GetGCMemoryInfo();
return FromBytesToGiB(gcMemoryInfo.TotalAvailableMemoryBytes - gcMemoryInfo.MemoryLoadBytes);
}
private static double FromBytesToGiB(long bytes)
{
return Math.ScaleB((double)bytes, -30);
}
}
}

4
ARMeilleure/Translation/PTC/EncodingCache.cs
View file

@ -2,8 +2,8 @@ using System.Text;
namespace ARMeilleure.Translation.PTC
{
internal static class EncodingCache
static class EncodingCache
{
internal static readonly Encoding UTF8NoBOM = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true);
public static readonly Encoding UTF8NoBOM = new UTF8Encoding(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true);
}
}

435
ARMeilleure/Translation/PTC/Ptc.cs
View file

@ -24,9 +24,10 @@ namespace ARMeilleure.Translation.PTC
{
public static class Ptc
{
private const string HeaderMagicString = "PTChd\0\0\0";
private const string OuterHeaderMagicString = "PTCohd\0\0";
private const string InnerHeaderMagicString = "PTCihd\0\0";
private const uint InternalVersion = 2155; //! To be incremented manually for each change to the ARMeilleure project.
private const uint InternalVersion = 2169; //! To be incremented manually for each change to the ARMeilleure project.
private const string ActualDir = "0";
private const string BackupDir = "1";
@ -41,14 +42,16 @@ namespace ARMeilleure.Translation.PTC
private const byte FillingByte = 0x00;
private const CompressionLevel SaveCompressionLevel = CompressionLevel.Fastest;
// Carriers.
private static MemoryStream _infosStream;
private static MemoryStream _codesStream;
private static List<byte[]> _codesList;
private static MemoryStream _relocsStream;
private static MemoryStream _unwindInfosStream;
private static BinaryWriter _infosWriter;
private static readonly ulong _headerMagic;
private static readonly ulong _outerHeaderMagic;
private static readonly ulong _innerHeaderMagic;
private static readonly ManualResetEvent _waitEvent;
@ -66,16 +69,17 @@ namespace ARMeilleure.Translation.PTC
internal static PtcState State { get; private set; }
// Progress reporting helpers
// Progress reporting helpers.
private static volatile int _translateCount;
private static volatile int _translateTotalCount;
public static event Action<PtcLoadingState, int, int> PtcStateChanged;
static Ptc()
{
InitializeMemoryStreams();
InitializeCarriers();
_headerMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(HeaderMagicString).AsSpan());
_outerHeaderMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(OuterHeaderMagicString).AsSpan());
_innerHeaderMagic = BinaryPrimitives.ReadUInt64LittleEndian(EncodingCache.UTF8NoBOM.GetBytes(InnerHeaderMagicString).AsSpan());
_waitEvent = new ManualResetEvent(true);
@ -141,41 +145,41 @@ namespace ARMeilleure.Translation.PTC
Enable();
}
private static void InitializeMemoryStreams()
private static void InitializeCarriers()
{
_infosStream = new MemoryStream();
_codesStream = new MemoryStream();
_codesList = new List<byte[]>();
_relocsStream = new MemoryStream();
_unwindInfosStream = new MemoryStream();
_infosWriter = new BinaryWriter(_infosStream, EncodingCache.UTF8NoBOM, true);
}
private static void DisposeMemoryStreams()
private static void DisposeCarriers()
{
_infosWriter.Dispose();
_infosStream.Dispose();
_codesStream.Dispose();
_codesList.Clear();
_relocsStream.Dispose();
_unwindInfosStream.Dispose();
}
private static bool AreMemoryStreamsEmpty()
private static bool AreCarriersEmpty()
{
return _infosStream.Length == 0L && _codesStream.Length == 0L && _relocsStream.Length == 0L && _unwindInfosStream.Length == 0L;
return _infosStream.Length == 0L && _codesList.Count == 0 && _relocsStream.Length == 0L && _unwindInfosStream.Length == 0L;
}
private static void ResetMemoryStreamsIfNeeded()
private static void ResetCarriersIfNeeded()
{
if (AreMemoryStreamsEmpty())
if (AreCarriersEmpty())
{
return;
}
DisposeMemoryStreams();
DisposeCarriers();
InitializeMemoryStreams();
InitializeCarriers();
}
private static void PreLoad()
@ -207,28 +211,57 @@ namespace ARMeilleure.Translation.PTC
using (FileStream compressedStream = new(fileName, FileMode.Open))
using (DeflateStream deflateStream = new(compressedStream, CompressionMode.Decompress, true))
{
Hash128 currentSizeHash = DeserializeStructure<Hash128>(compressedStream);
OuterHeader outerHeader = DeserializeStructure<OuterHeader>(compressedStream);
Span<byte> sizeBytes = new byte[sizeof(int)];
compressedStream.Read(sizeBytes);
Hash128 expectedSizeHash = XXHash128.ComputeHash(sizeBytes);
if (currentSizeHash != expectedSizeHash)
if (!outerHeader.IsHeaderValid())
{
InvalidateCompressedStream(compressedStream);
return false;
}
int size = BinaryPrimitives.ReadInt32LittleEndian(sizeBytes);
if (outerHeader.Magic != _outerHeaderMagic)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (outerHeader.CacheFileVersion != InternalVersion)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (outerHeader.Endianness != GetEndianness())
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (outerHeader.FeatureInfo != GetFeatureInfo())
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (outerHeader.OSPlatform != GetOSPlatform())
{
InvalidateCompressedStream(compressedStream);
return false;
}
IntPtr intPtr = IntPtr.Zero;
try
{
intPtr = Marshal.AllocHGlobal(size);
intPtr = Marshal.AllocHGlobal(new IntPtr(outerHeader.UncompressedStreamSize));
using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), size, size, FileAccess.ReadWrite))
using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), outerHeader.UncompressedStreamSize, outerHeader.UncompressedStreamSize, FileAccess.ReadWrite))
{
try
{
@ -241,96 +274,104 @@ namespace ARMeilleure.Translation.PTC
return false;
}
int hashSize = Unsafe.SizeOf<Hash128>();
Debug.Assert(stream.Position == stream.Length);
stream.Seek(0L, SeekOrigin.Begin);
Hash128 currentHash = DeserializeStructure<Hash128>(stream);
ReadOnlySpan<byte> streamBytes = new(stream.PositionPointer, (int)(stream.Length - stream.Position));
Hash128 expectedHash = XXHash128.ComputeHash(streamBytes);
InnerHeader innerHeader = DeserializeStructure<InnerHeader>(stream);
if (currentHash != expectedHash)
if (!innerHeader.IsHeaderValid())
{
InvalidateCompressedStream(compressedStream);
return false;
}
stream.Seek((long)hashSize, SeekOrigin.Begin);
Header header = ReadHeader(stream);
if (header.Magic != _headerMagic)
if (innerHeader.Magic != _innerHeaderMagic)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (header.CacheFileVersion != InternalVersion)
ReadOnlySpan<byte> infosBytes = new(stream.PositionPointer, innerHeader.InfosLength);
stream.Seek(innerHeader.InfosLength, SeekOrigin.Current);
Hash128 infosHash = XXHash128.ComputeHash(infosBytes);
if (innerHeader.InfosHash != infosHash)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (header.Endianness != GetEndianness())
ReadOnlySpan<byte> codesBytes = (int)innerHeader.CodesLength > 0 ? new(stream.PositionPointer, (int)innerHeader.CodesLength) : ReadOnlySpan<byte>.Empty;
stream.Seek(innerHeader.CodesLength, SeekOrigin.Current);
Hash128 codesHash = XXHash128.ComputeHash(codesBytes);
if (innerHeader.CodesHash != codesHash)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (header.FeatureInfo != GetFeatureInfo())
ReadOnlySpan<byte> relocsBytes = new(stream.PositionPointer, innerHeader.RelocsLength);
stream.Seek(innerHeader.RelocsLength, SeekOrigin.Current);
Hash128 relocsHash = XXHash128.ComputeHash(relocsBytes);
if (innerHeader.RelocsHash != relocsHash)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (header.OSPlatform != GetOSPlatform())
ReadOnlySpan<byte> unwindInfosBytes = new(stream.PositionPointer, innerHeader.UnwindInfosLength);
stream.Seek(innerHeader.UnwindInfosLength, SeekOrigin.Current);
Hash128 unwindInfosHash = XXHash128.ComputeHash(unwindInfosBytes);
if (innerHeader.UnwindInfosHash != unwindInfosHash)
{
InvalidateCompressedStream(compressedStream);
return false;
}
if (header.InfosLen % InfoEntry.Stride != 0)
ReadOnlySpan<byte> ptcJumpTableBytes = new(stream.PositionPointer, innerHeader.PtcJumpTableLength);
stream.Seek(innerHeader.PtcJumpTableLength, SeekOrigin.Current);
Debug.Assert(stream.Position == stream.Length);
Hash128 ptcJumpTableHash = XXHash128.ComputeHash(ptcJumpTableBytes);
if (innerHeader.PtcJumpTableHash != ptcJumpTableHash)
{
InvalidateCompressedStream(compressedStream);
return false;
}
ReadOnlySpan<byte> infosBuf = new(stream.PositionPointer, header.InfosLen);
stream.Seek(header.InfosLen, SeekOrigin.Current);
stream.Seek((long)Unsafe.SizeOf<InnerHeader>(), SeekOrigin.Begin);
ReadOnlySpan<byte> codesBuf = new(stream.PositionPointer, header.CodesLen);
stream.Seek(header.CodesLen, SeekOrigin.Current);
_infosStream.Write(infosBytes);
stream.Seek(innerHeader.InfosLength, SeekOrigin.Current);
ReadOnlySpan<byte> relocsBuf = new(stream.PositionPointer, header.RelocsLen);
stream.Seek(header.RelocsLen, SeekOrigin.Current);
_codesList.ReadFrom(stream);
ReadOnlySpan<byte> unwindInfosBuf = new(stream.PositionPointer, header.UnwindInfosLen);
stream.Seek(header.UnwindInfosLen, SeekOrigin.Current);
_relocsStream.Write(relocsBytes);
stream.Seek(innerHeader.RelocsLength, SeekOrigin.Current);
try
{
PtcJumpTable = PtcJumpTable.Deserialize(stream);
}
catch
{
PtcJumpTable = new PtcJumpTable();
_unwindInfosStream.Write(unwindInfosBytes);
stream.Seek(innerHeader.UnwindInfosLength, SeekOrigin.Current);
InvalidateCompressedStream(compressedStream);
PtcJumpTable = PtcJumpTable.Deserialize(stream);
return false;
}
_infosStream.Write(infosBuf);
_codesStream.Write(codesBuf);
_relocsStream.Write(relocsBuf);
_unwindInfosStream.Write(unwindInfosBuf);
Debug.Assert(stream.Position == stream.Length);
}
}
finally
@ -344,33 +385,11 @@ namespace ARMeilleure.Translation.PTC
long fileSize = new FileInfo(fileName).Length;
Logger.Info?.Print(LogClass.Ptc, $"{(isBackup ? "Loaded Backup Translation Cache" : "Loaded Translation Cache")} (size: {fileSize} bytes, translated functions: {GetInfosEntriesCount()}).");
Logger.Info?.Print(LogClass.Ptc, $"{(isBackup ? "Loaded Backup Translation Cache" : "Loaded Translation Cache")} (size: {fileSize} bytes, translated functions: {GetEntriesCount()}).");
return true;
}
private static Header ReadHeader(Stream stream)
{
using (BinaryReader headerReader = new(stream, EncodingCache.UTF8NoBOM, true))
{
Header header = new Header();
header.Magic = headerReader.ReadUInt64();
header.CacheFileVersion = headerReader.ReadUInt32();
header.Endianness = headerReader.ReadBoolean();
header.FeatureInfo = headerReader.ReadUInt64();
header.OSPlatform = headerReader.ReadUInt32();
header.InfosLen = headerReader.ReadInt32();
header.CodesLen = headerReader.ReadInt32();
header.RelocsLen = headerReader.ReadInt32();
header.UnwindInfosLen = headerReader.ReadInt32();
return header;
}
}
private static void InvalidateCompressedStream(FileStream compressedStream)
{
compressedStream.SetLength(0L);
@ -396,7 +415,7 @@ namespace ARMeilleure.Translation.PTC
}
finally
{
ResetMemoryStreamsIfNeeded();
ResetCarriersIfNeeded();
PtcJumpTable.ClearIfNeeded();
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
@ -409,46 +428,76 @@ namespace ARMeilleure.Translation.PTC
{
int translatedFuncsCount;
int hashSize = Unsafe.SizeOf<Hash128>();
InnerHeader innerHeader = new InnerHeader();
int size = hashSize + Header.Size + GetMemoryStreamsLength() + PtcJumpTable.GetSerializeSize(PtcJumpTable);
innerHeader.Magic = _innerHeaderMagic;
Span<byte> sizeBytes = new byte[sizeof(int)];
BinaryPrimitives.WriteInt32LittleEndian(sizeBytes, size);
Hash128 sizeHash = XXHash128.ComputeHash(sizeBytes);
innerHeader.InfosLength = (int)_infosStream.Length;
innerHeader.CodesLength = _codesList.Length();
innerHeader.RelocsLength = (int)_relocsStream.Length;
innerHeader.UnwindInfosLength = (int)_unwindInfosStream.Length;
innerHeader.PtcJumpTableLength = PtcJumpTable.GetSerializeSize(PtcJumpTable);
Span<byte> sizeHashBytes = new byte[hashSize];
MemoryMarshal.Write<Hash128>(sizeHashBytes, ref sizeHash);
OuterHeader outerHeader = new OuterHeader();
outerHeader.Magic = _outerHeaderMagic;
outerHeader.CacheFileVersion = InternalVersion;
outerHeader.Endianness = GetEndianness();
outerHeader.FeatureInfo = GetFeatureInfo();
outerHeader.OSPlatform = GetOSPlatform();
outerHeader.UncompressedStreamSize =
(long)Unsafe.SizeOf<InnerHeader>() +
innerHeader.InfosLength +
innerHeader.CodesLength +
innerHeader.RelocsLength +
innerHeader.UnwindInfosLength +
innerHeader.PtcJumpTableLength;
outerHeader.SetHeaderHash();
IntPtr intPtr = IntPtr.Zero;
try
{
intPtr = Marshal.AllocHGlobal(size);
intPtr = Marshal.AllocHGlobal(new IntPtr(outerHeader.UncompressedStreamSize));
using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), size, size, FileAccess.ReadWrite))
using (UnmanagedMemoryStream stream = new((byte*)intPtr.ToPointer(), outerHeader.UncompressedStreamSize, outerHeader.UncompressedStreamSize, FileAccess.ReadWrite))
{
stream.Seek((long)hashSize, SeekOrigin.Begin);
WriteHeader(stream);
stream.Seek((long)Unsafe.SizeOf<InnerHeader>(), SeekOrigin.Begin);
ReadOnlySpan<byte> infosBytes = new(stream.PositionPointer, innerHeader.InfosLength);
_infosStream.WriteTo(stream);
_codesStream.WriteTo(stream);
ReadOnlySpan<byte> codesBytes = (int)innerHeader.CodesLength > 0 ? new(stream.PositionPointer, (int)innerHeader.CodesLength) : ReadOnlySpan<byte>.Empty;
_codesList.WriteTo(stream);
ReadOnlySpan<byte> relocsBytes = new(stream.PositionPointer, innerHeader.RelocsLength);
_relocsStream.WriteTo(stream);
ReadOnlySpan<byte> unwindInfosBytes = new(stream.PositionPointer, innerHeader.UnwindInfosLength);
_unwindInfosStream.WriteTo(stream);
ReadOnlySpan<byte> ptcJumpTableBytes = new(stream.PositionPointer, innerHeader.PtcJumpTableLength);
PtcJumpTable.Serialize(stream, PtcJumpTable);
stream.Seek((long)hashSize, SeekOrigin.Begin);
ReadOnlySpan<byte> streamBytes = new(stream.PositionPointer, (int)(stream.Length - stream.Position));
Hash128 hash = XXHash128.ComputeHash(streamBytes);
Debug.Assert(stream.Position == stream.Length);
innerHeader.InfosHash = XXHash128.ComputeHash(infosBytes);
innerHeader.CodesHash = XXHash128.ComputeHash(codesBytes);
innerHeader.RelocsHash = XXHash128.ComputeHash(relocsBytes);
innerHeader.UnwindInfosHash = XXHash128.ComputeHash(unwindInfosBytes);
innerHeader.PtcJumpTableHash = XXHash128.ComputeHash(ptcJumpTableBytes);
innerHeader.SetHeaderHash();
stream.Seek(0L, SeekOrigin.Begin);
SerializeStructure(stream, hash);
SerializeStructure(stream, innerHeader);
translatedFuncsCount = GetInfosEntriesCount();
translatedFuncsCount = GetEntriesCount();
ResetMemoryStreamsIfNeeded();
ResetCarriersIfNeeded();
PtcJumpTable.ClearIfNeeded();
using (FileStream compressedStream = new(fileName, FileMode.OpenOrCreate))
@ -456,8 +505,7 @@ namespace ARMeilleure.Translation.PTC
{
try
{
compressedStream.Write(sizeHashBytes);
compressedStream.Write(sizeBytes);
SerializeStructure(compressedStream, outerHeader);
stream.Seek(0L, SeekOrigin.Begin);
stream.CopyTo(deflateStream);
@ -490,67 +538,40 @@ namespace ARMeilleure.Translation.PTC
}
}
private static int GetMemoryStreamsLength()
{
return (int)_infosStream.Length + (int)_codesStream.Length + (int)_relocsStream.Length + (int)_unwindInfosStream.Length;
}
private static void WriteHeader(Stream stream)
{
using (BinaryWriter headerWriter = new(stream, EncodingCache.UTF8NoBOM, true))
{
headerWriter.Write((ulong)_headerMagic); // Header.Magic
headerWriter.Write((uint)InternalVersion); // Header.CacheFileVersion
headerWriter.Write((bool)GetEndianness()); // Header.Endianness
headerWriter.Write((ulong)GetFeatureInfo()); // Header.FeatureInfo
headerWriter.Write((uint)GetOSPlatform()); // Header.OSPlatform
headerWriter.Write((int)_infosStream.Length); // Header.InfosLen
headerWriter.Write((int)_codesStream.Length); // Header.CodesLen
headerWriter.Write((int)_relocsStream.Length); // Header.RelocsLen
headerWriter.Write((int)_unwindInfosStream.Length); // Header.UnwindInfosLen
}
}
internal static void LoadTranslations(ConcurrentDictionary<ulong, TranslatedFunction> funcs, IMemoryManager memory, JumpTable jumpTable)
{
if (AreMemoryStreamsEmpty())
if (AreCarriersEmpty())
{
return;
}
Debug.Assert(funcs.Count == 0);
_infosStream.Seek(0L, SeekOrigin.Begin);
_codesStream.Seek(0L, SeekOrigin.Begin);
_relocsStream.Seek(0L, SeekOrigin.Begin);
_unwindInfosStream.Seek(0L, SeekOrigin.Begin);
using (BinaryReader infosReader = new(_infosStream, EncodingCache.UTF8NoBOM, true))
using (BinaryReader codesReader = new(_codesStream, EncodingCache.UTF8NoBOM, true))
using (BinaryReader relocsReader = new(_relocsStream, EncodingCache.UTF8NoBOM, true))
using (BinaryReader unwindInfosReader = new(_unwindInfosStream, EncodingCache.UTF8NoBOM, true))
{
for (int i = 0; i < GetInfosEntriesCount(); i++)
for (int index = 0; index < GetEntriesCount(); index++)
{
InfoEntry infoEntry = ReadInfo(infosReader);
if (infoEntry.Stubbed)
{
SkipCode(infoEntry.CodeLen);
SkipCode(index, infoEntry.CodeLength);
SkipReloc(infoEntry.RelocEntriesCount);
SkipUnwindInfo(unwindInfosReader);
}
else if (infoEntry.HighCq || !PtcProfiler.ProfiledFuncs.TryGetValue(infoEntry.Address, out var value) || !value.HighCq)
{
Span<byte> code = ReadCode(codesReader, infoEntry.CodeLen);
byte[] code = ReadCode(index, infoEntry.CodeLength);
if (infoEntry.RelocEntriesCount != 0)
{
RelocEntry[] relocEntries = GetRelocEntries(relocsReader, infoEntry.RelocEntriesCount);
PatchCode(code, relocEntries, memory.PageTablePointer, jumpTable);
PatchCode(code.AsSpan(), relocEntries, memory.PageTablePointer, jumpTable);
}
UnwindInfo unwindInfo = ReadUnwindInfo(unwindInfosReader);
@ -564,9 +585,10 @@ namespace ARMeilleure.Translation.PTC
else
{
infoEntry.Stubbed = true;
infoEntry.CodeLength = 0;
UpdateInfo(infoEntry);
StubCode(infoEntry.CodeLen);
StubCode(index);
StubReloc(infoEntry.RelocEntriesCount);
StubUnwindInfo(unwindInfosReader);
}
@ -574,7 +596,6 @@ namespace ARMeilleure.Translation.PTC
}
if (_infosStream.Position < _infosStream.Length ||
_codesStream.Position < _codesStream.Length ||
_relocsStream.Position < _relocsStream.Length ||
_unwindInfosStream.Position < _unwindInfosStream.Length)
{
@ -589,9 +610,9 @@ namespace ARMeilleure.Translation.PTC
Logger.Info?.Print(LogClass.Ptc, $"{funcs.Count} translated functions loaded");
}
private static int GetInfosEntriesCount()
private static int GetEntriesCount()
{
return (int)_infosStream.Length / InfoEntry.Stride;
return _codesList.Count;
}
private static InfoEntry ReadInfo(BinaryReader infosReader)
@ -602,15 +623,17 @@ namespace ARMeilleure.Translation.PTC
infoEntry.GuestSize = infosReader.ReadUInt64();
infoEntry.HighCq = infosReader.ReadBoolean();
infoEntry.Stubbed = infosReader.ReadBoolean();
infoEntry.CodeLen = infosReader.ReadInt32();
infoEntry.CodeLength = infosReader.ReadInt32();
infoEntry.RelocEntriesCount = infosReader.ReadInt32();
return infoEntry;
}
private static void SkipCode(int codeLen)
[Conditional("DEBUG")]
private static void SkipCode(int index, int codeLength)
{
_codesStream.Seek(codeLen, SeekOrigin.Current);
Debug.Assert(_codesList[index].Length == 0);
Debug.Assert(codeLength == 0);
}
private static void SkipReloc(int relocEntriesCount)
@ -625,13 +648,11 @@ namespace ARMeilleure.Translation.PTC
_unwindInfosStream.Seek(pushEntriesLength * UnwindPushEntry.Stride + UnwindInfo.Stride, SeekOrigin.Current);
}
private static Span<byte> ReadCode(BinaryReader codesReader, int codeLen)
private static byte[] ReadCode(int index, int codeLength)
{
Span<byte> codeBuf = new byte[codeLen];
Debug.Assert(_codesList[index].Length == codeLength);
codesReader.Read(codeBuf);
return codeBuf;
return _codesList[index];
}
private static RelocEntry[] GetRelocEntries(BinaryReader relocsReader, int relocEntriesCount)
@ -701,9 +722,9 @@ namespace ARMeilleure.Translation.PTC
return new UnwindInfo(pushEntries, prologueSize);
}
private static TranslatedFunction FastTranslate(ReadOnlySpan<byte> code, ulong guestSize, UnwindInfo unwindInfo, bool highCq)
private static TranslatedFunction FastTranslate(byte[] code, ulong guestSize, UnwindInfo unwindInfo, bool highCq)
{
CompiledFunction cFunc = new CompiledFunction(code.ToArray(), unwindInfo);
CompiledFunction cFunc = new CompiledFunction(code, unwindInfo);
IntPtr codePtr = JitCache.Map(cFunc);
@ -723,16 +744,13 @@ namespace ARMeilleure.Translation.PTC
_infosWriter.Write((ulong)infoEntry.GuestSize);
_infosWriter.Write((bool)infoEntry.HighCq);
_infosWriter.Write((bool)infoEntry.Stubbed);
_infosWriter.Write((int)infoEntry.CodeLen);
_infosWriter.Write((int)infoEntry.CodeLength);
_infosWriter.Write((int)infoEntry.RelocEntriesCount);
}
private static void StubCode(int codeLen)
private static void StubCode(int index)
{
for (int i = 0; i < codeLen; i++)
{
_codesStream.WriteByte(FillingByte);
}
_codesList[index] = Array.Empty<byte>();
}
private static void StubReloc(int relocEntriesCount)
@ -757,9 +775,14 @@ namespace ARMeilleure.Translation.PTC
{
var profiledFuncsToTranslate = PtcProfiler.GetProfiledFuncsToTranslate(funcs);
if (profiledFuncsToTranslate.Count == 0)
_translateCount = 0;
_translateTotalCount = profiledFuncsToTranslate.Count;
int degreeOfParallelism = new DegreeOfParallelism(4d, 75d, 12.5d).GetDegreeOfParallelism(0, 32);
if (_translateTotalCount == 0 || degreeOfParallelism == 0)
{
ResetMemoryStreamsIfNeeded();
ResetCarriersIfNeeded();
PtcJumpTable.ClearIfNeeded();
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
@ -767,8 +790,7 @@ namespace ARMeilleure.Translation.PTC
return;
}
_translateCount = 0;
_translateTotalCount = profiledFuncsToTranslate.Count;
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism}");
PtcStateChanged?.Invoke(PtcLoadingState.Start, _translateCount, _translateTotalCount);
@ -813,11 +835,9 @@ namespace ARMeilleure.Translation.PTC
Translator.DisposePools();
}
int maxDegreeOfParallelism = (Environment.ProcessorCount * 3) / 4;
List<Thread> threads = new List<Thread>();
for (int i = 0; i < maxDegreeOfParallelism; i++)
for (int i = 0; i < degreeOfParallelism; i++)
{
Thread thread = new Thread(TranslateFuncs);
thread.IsBackground = true;
@ -835,7 +855,7 @@ namespace ARMeilleure.Translation.PTC
PtcStateChanged?.Invoke(PtcLoadingState.Loaded, _translateCount, _translateTotalCount);
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated");
Logger.Info?.Print(LogClass.Ptc, $"{_translateCount} of {_translateTotalCount} functions translated | Thread count: {degreeOfParallelism}");
PtcJumpTable.Initialize(jumpTable);
@ -849,7 +869,7 @@ namespace ARMeilleure.Translation.PTC
private static void ReportProgress(object state)
{
const int refreshRate = 50; // ms
const int refreshRate = 50; // ms.
AutoResetEvent endEvent = (AutoResetEvent)state;
@ -877,11 +897,10 @@ namespace ARMeilleure.Translation.PTC
_infosWriter.Write((ulong)guestSize); // InfoEntry.GuestSize
_infosWriter.Write((bool)highCq); // InfoEntry.HighCq
_infosWriter.Write((bool)false); // InfoEntry.Stubbed
_infosWriter.Write((int)ptcInfo.Code.Length); // InfoEntry.CodeLen
_infosWriter.Write((int)ptcInfo.Code.Length); // InfoEntry.CodeLength
_infosWriter.Write((int)ptcInfo.RelocEntriesCount); // InfoEntry.RelocEntriesCount
// WriteCode.
_codesStream.Write(ptcInfo.Code.AsSpan());
WriteCode(ptcInfo.Code.AsSpan());
// WriteReloc.
ptcInfo.RelocStream.WriteTo(_relocsStream);
@ -891,6 +910,11 @@ namespace ARMeilleure.Translation.PTC
}
}
private static void WriteCode(ReadOnlySpan<byte> code)
{
_codesList.Add(code.ToArray());
}
private static bool GetEndianness()
{
return BitConverter.IsLittleEndian;
@ -913,21 +937,68 @@ namespace ARMeilleure.Translation.PTC
return osPlatform;
}
private struct Header
[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 49*/)]
private struct OuterHeader
{
public const int Size = 41; // Bytes.
public ulong Magic;
public uint CacheFileVersion;
public bool Endianness;
public ulong FeatureInfo;
public uint OSPlatform;
public int InfosLen;
public int CodesLen;
public int RelocsLen;
public int UnwindInfosLen;
public long UncompressedStreamSize;
public Hash128 HeaderHash;
public void SetHeaderHash()
{
Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
HeaderHash = XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>()));
}
public bool IsHeaderValid()
{
Span<OuterHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
return XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<OuterHeader>() - Unsafe.SizeOf<Hash128>())) == HeaderHash;
}
}
[StructLayout(LayoutKind.Sequential, Pack = 1/*, Size = 128*/)]
private struct InnerHeader
{
public ulong Magic;
public int InfosLength;
public long CodesLength;
public int RelocsLength;
public int UnwindInfosLength;
public int PtcJumpTableLength;
public Hash128 InfosHash;
public Hash128 CodesHash;
public Hash128 RelocsHash;
public Hash128 UnwindInfosHash;
public Hash128 PtcJumpTableHash;
public Hash128 HeaderHash;
public void SetHeaderHash()
{
Span<InnerHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
HeaderHash = XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<InnerHeader>() - Unsafe.SizeOf<Hash128>()));
}
public bool IsHeaderValid()
{
Span<InnerHeader> spanHeader = MemoryMarshal.CreateSpan(ref this, 1);
return XXHash128.ComputeHash(MemoryMarshal.AsBytes(spanHeader).Slice(0, Unsafe.SizeOf<InnerHeader>() - Unsafe.SizeOf<Hash128>())) == HeaderHash;
}
}
private struct InfoEntry
@ -938,7 +1009,7 @@ namespace ARMeilleure.Translation.PTC
public ulong GuestSize;
public bool HighCq;
public bool Stubbed;
public int CodeLen;
public int CodeLength;
public int RelocEntriesCount;
}
@ -983,7 +1054,7 @@ namespace ARMeilleure.Translation.PTC
Wait();
_waitEvent.Dispose();
DisposeMemoryStreams();
DisposeCarriers();
}
}
}

66
ARMeilleure/Translation/PTC/PtcFormatter.cs
View file

@ -6,11 +6,11 @@ using System.Runtime.InteropServices;
namespace ARMeilleure.Translation.PTC
{
public class PtcFormatter
static class PtcFormatter
{
#region "Deserialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Dictionary<TKey, TValue> DeserializeDictionary<TKey, TValue>(Stream stream, Func<Stream, TValue> valueFunc) where TKey : unmanaged
public static Dictionary<TKey, TValue> DeserializeDictionary<TKey, TValue>(Stream stream, Func<Stream, TValue> valueFunc) where TKey : struct
{
Dictionary<TKey, TValue> dictionary = new();
@ -28,7 +28,7 @@ namespace ARMeilleure.Translation.PTC
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static List<T> DeserializeList<T>(Stream stream) where T : unmanaged
public static List<T> DeserializeList<T>(Stream stream) where T : struct
{
List<T> list = new();
@ -45,7 +45,7 @@ namespace ARMeilleure.Translation.PTC
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T DeserializeStructure<T>(Stream stream) where T : unmanaged
public static T DeserializeStructure<T>(Stream stream) where T : struct
{
T structure = default(T);
@ -58,7 +58,7 @@ namespace ARMeilleure.Translation.PTC
#region "GetSerializeSize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeDictionary<TKey, TValue>(Dictionary<TKey, TValue> dictionary, Func<TValue, int> valueFunc) where TKey : unmanaged
public static int GetSerializeSizeDictionary<TKey, TValue>(Dictionary<TKey, TValue> dictionary, Func<TValue, int> valueFunc) where TKey : struct
{
int size = 0;
@ -74,7 +74,7 @@ namespace ARMeilleure.Translation.PTC
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeList<T>(List<T> list) where T : unmanaged
public static int GetSerializeSizeList<T>(List<T> list) where T : struct
{
int size = 0;
@ -88,7 +88,7 @@ namespace ARMeilleure.Translation.PTC
#region "Serialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeDictionary<TKey, TValue>(Stream stream, Dictionary<TKey, TValue> dictionary, Action<Stream, TValue> valueAction) where TKey : unmanaged
public static void SerializeDictionary<TKey, TValue>(Stream stream, Dictionary<TKey, TValue> dictionary, Action<Stream, TValue> valueAction) where TKey : struct
{
SerializeStructure<int>(stream, dictionary.Count);
@ -100,7 +100,7 @@ namespace ARMeilleure.Translation.PTC
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeList<T>(Stream stream, List<T> list) where T : unmanaged
public static void SerializeList<T>(Stream stream, List<T> list) where T : struct
{
SerializeStructure<int>(stream, list.Count);
@ -111,11 +111,59 @@ namespace ARMeilleure.Translation.PTC
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeStructure<T>(Stream stream, T structure) where T : unmanaged
public static void SerializeStructure<T>(Stream stream, T structure) where T : struct
{
Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
stream.Write(MemoryMarshal.AsBytes(spanT));
}
#endregion
#region "Extension methods"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void ReadFrom<T>(this List<T[]> list, Stream stream) where T : struct
{
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
int itemLength = DeserializeStructure<int>(stream);
T[] item = new T[itemLength];
stream.Read(MemoryMarshal.AsBytes(item.AsSpan()));
list.Add(item);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long Length<T>(this List<T[]> list) where T : struct
{
long size = 0L;
size += Unsafe.SizeOf<int>();
foreach (T[] item in list)
{
size += Unsafe.SizeOf<int>();
size += item.Length;
}
return size;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteTo<T>(this List<T[]> list, Stream stream) where T : struct
{
SerializeStructure<int>(stream, list.Count);
foreach (T[] item in list)
{
SerializeStructure<int>(stream, item.Length);
stream.Write(MemoryMarshal.AsBytes(item.AsSpan()));
}
}
#endregion
}
}

2
ARMeilleure/Translation/PTC/PtcInfo.cs
View file

@ -59,4 +59,4 @@ namespace ARMeilleure.Translation.PTC
UnwindInfoStream.Dispose();
}
}
}
}

2
ARMeilleure/Translation/PTC/PtcJumpTable.cs
View file

@ -17,7 +17,7 @@ namespace ARMeilleure.Translation.PTC
{
public int EntryIndex;
public long GuestAddress;
public TAddress HostAddress; // int
public TAddress HostAddress;
public TableEntry(int entryIndex, long guestAddress, TAddress hostAddress)
{

2
ARMeilleure/Translation/PTC/PtcProfiler.cs
View file

@ -399,4 +399,4 @@ namespace ARMeilleure.Translation.PTC
}
}
}
}
}

2
ARMeilleure/Translation/PTC/RelocEntry.cs
View file

@ -18,4 +18,4 @@ namespace ARMeilleure.Translation.PTC
return $"({nameof(Position)} = {Position}, {nameof(Index)} = {Index})";
}
}
}
}

1
ARMeilleure/Translation/Translator.cs
View file

@ -103,6 +103,7 @@ namespace ARMeilleure.Translation
if (Ptc.State == PtcState.Enabled)
{
Debug.Assert(_funcs.Count == 0);
Ptc.LoadTranslations(_funcs, _memory, _jumpTable);
Ptc.MakeAndSaveTranslations(_funcs, _memory, _jumpTable);
}