static public int LzmaBenchmark(Int32 numIterations, UInt32 dictionarySize)
{
if (numIterations <= 0)
return 0;
if (dictionarySize < (1 << 18))
{
System.Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return 1;
}
System.Console.Write("\n Compressing Decompressing\n\n");
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
};
object[] properties =
{
(Int32)(dictionarySize),
};
UInt32 kBufferSize = dictionarySize + kAdditionalSize;
UInt32 kCompressedBufferSize = (kBufferSize / 2) + kCompressedAdditionalSize;
encoder.SetCoderProperties(propIDs, properties);
System.IO.MemoryStream propStream = new System.IO.MemoryStream();
encoder.WriteCoderProperties(propStream);
byte[] propArray = propStream.ToArray();
CBenchRandomGenerator rg = new CBenchRandomGenerator();
rg.Set(kBufferSize);
rg.Generate();
CRC crc = new CRC();
crc.Init();
crc.Update(rg.Buffer, 0, rg.BufferSize);
CProgressInfo progressInfo = new CProgressInfo();
progressInfo.ApprovedStart = dictionarySize;
UInt64 totalBenchSize = 0;
UInt64 totalEncodeTime = 0;
UInt64 totalDecodeTime = 0;
UInt64 totalCompressedSize = 0;
MemoryStream inStream = new MemoryStream(rg.Buffer, 0, (int)rg.BufferSize);
MemoryStream compressedStream = new MemoryStream((int)kCompressedBufferSize);
CrcOutStream crcOutStream = new CrcOutStream();
for (Int32 i = 0; i < numIterations; i++)
{
progressInfo.Init();
inStream.Seek(0, SeekOrigin.Begin);
compressedStream.Seek(0, SeekOrigin.Begin);
encoder.Code(inStream, compressedStream, -1, -1, progressInfo);
TimeSpan sp2 = DateTime.UtcNow - progressInfo.Time;
UInt64 encodeTime = (UInt64)sp2.Ticks;
long compressedSize = compressedStream.Position;
if (progressInfo.InSize == 0)
throw (new Exception("Internal ERROR 1282"));
UInt64 decodeTime = 0;
for (int j = 0; j < 2; j++)
{
compressedStream.Seek(0, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(propArray);
UInt64 outSize = kBufferSize;
System.DateTime startTime = DateTime.UtcNow;
decoder.Code(compressedStream, crcOutStream, 0, (Int64)outSize, null);
TimeSpan sp = (DateTime.UtcNow - startTime);
decodeTime = (ulong)sp.Ticks;
if (crcOutStream.GetDigest() != crc.GetDigest())
throw (new Exception("CRC Error"));
}
UInt64 benchSize = kBufferSize - (UInt64)progressInfo.InSize;
PrintResults(dictionarySize, encodeTime, benchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, decodeTime, kBufferSize, true, (ulong)compressedSize);
System.Console.WriteLine();
totalBenchSize += benchSize;
totalEncodeTime += encodeTime;
totalDecodeTime += decodeTime;
totalCompressedSize += (ulong)compressedSize;
}
System.Console.WriteLine("---------------------------------------------------");
PrintResults(dictionarySize, totalEncodeTime, totalBenchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, totalDecodeTime,
kBufferSize * (UInt64)numIterations, true, totalCompressedSize);
System.Console.WriteLine(" Average");
return 0;
}
private static uint CalculateDigest(byte[] data, uint offset, uint size) {
var crc = new CRC();
// crc.Init();
crc.Update(data, offset, size);
return crc.GetDigest();
}
public static uint Crc32(byte[] data, int offset, int len)
{
SevenZip.CRC crc = new SevenZip.CRC();
crc.Update(data, (uint)offset, (uint)len);
return(crc.GetDigest());
}
static public int LzmaBenchmark(Int32 numIterations, UInt32 dictionarySize)
{
if (numIterations <= 0)
{
return(0);
}
if (dictionarySize < (1 << 18))
{
System.Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return(1);
}
System.Console.Write("\n Compressing Decompressing\n\n");
Compression.LZMA.Encoder encoder = new Compression.LZMA.Encoder();
Compression.LZMA.Decoder decoder = new Compression.LZMA.Decoder();
CoderPropID[] propIDs =
{
CoderPropID.DictionarySize,
};
object[] properties =
{
(Int32)(dictionarySize),
};
UInt32 kBufferSize = dictionarySize + kAdditionalSize;
UInt32 kCompressedBufferSize = (kBufferSize / 2) + kCompressedAdditionalSize;
encoder.SetCoderProperties(propIDs, properties);
System.IO.MemoryStream propStream = new System.IO.MemoryStream();
encoder.WriteCoderProperties(propStream);
byte[] propArray = propStream.ToArray();
CBenchRandomGenerator rg = new CBenchRandomGenerator();
rg.Set(kBufferSize);
rg.Generate();
CRC crc = new CRC();
crc.Init();
crc.Update(rg.Buffer, 0, rg.BufferSize);
CProgressInfo progressInfo = new CProgressInfo();
progressInfo.ApprovedStart = dictionarySize;
UInt64 totalBenchSize = 0;
UInt64 totalEncodeTime = 0;
UInt64 totalDecodeTime = 0;
UInt64 totalCompressedSize = 0;
MemoryStream inStream = new MemoryStream(rg.Buffer, 0, (int)rg.BufferSize);
MemoryStream compressedStream = new MemoryStream((int)kCompressedBufferSize);
CrcOutStream crcOutStream = new CrcOutStream();
for (Int32 i = 0; i < numIterations; i++)
{
progressInfo.Init();
inStream.Seek(0, SeekOrigin.Begin);
compressedStream.Seek(0, SeekOrigin.Begin);
encoder.Code(inStream, compressedStream, -1, -1, progressInfo);
TimeSpan sp2 = DateTime.UtcNow - progressInfo.Time;
UInt64 encodeTime = (UInt64)sp2.Ticks;
long compressedSize = compressedStream.Position;
if (progressInfo.InSize == 0)
{
throw (new Exception("Internal ERROR 1282"));
}
UInt64 decodeTime = 0;
for (int j = 0; j < 2; j++)
{
compressedStream.Seek(0, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(propArray);
UInt64 outSize = kBufferSize;
System.DateTime startTime = DateTime.UtcNow;
decoder.Code(compressedStream, crcOutStream, 0, (Int64)outSize, null);
TimeSpan sp = (DateTime.UtcNow - startTime);
decodeTime = (ulong)sp.Ticks;
if (crcOutStream.GetDigest() != crc.GetDigest())
{
throw (new Exception("CRC Error"));
}
}
UInt64 benchSize = kBufferSize - (UInt64)progressInfo.InSize;
PrintResults(dictionarySize, encodeTime, benchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, decodeTime, kBufferSize, true, (ulong)compressedSize);
System.Console.WriteLine();
totalBenchSize += benchSize;
totalEncodeTime += encodeTime;
totalDecodeTime += decodeTime;
totalCompressedSize += (ulong)compressedSize;
}
System.Console.WriteLine("---------------------------------------------------");
PrintResults(dictionarySize, totalEncodeTime, totalBenchSize, false, 0);
System.Console.Write(" ");
PrintResults(dictionarySize, totalDecodeTime,
kBufferSize * (UInt64)numIterations, true, totalCompressedSize);
System.Console.WriteLine(" Average");
return(0);
}
public static int LzmaBenchmark(int numIterations, uint dictionarySize)
{
if (numIterations <= 0)
{
return(0);
}
if (dictionarySize < 262144U)
{
Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return(1);
}
Console.Write("\n Compressing Decompressing\n\n");
Encoder encoder = new Encoder();
Decoder decoder = new Decoder();
CoderPropID[] propIDs = new CoderPropID[1]
{
CoderPropID.DictionarySize
};
object[] properties = new object[1]
{
(object)(int)dictionarySize
};
uint bufferSize = dictionarySize + 6291456U;
int capacity = (int)(bufferSize / 2U) + 1024;
encoder.SetCoderProperties(propIDs, properties);
MemoryStream memoryStream1 = new MemoryStream();
encoder.WriteCoderProperties((Stream)memoryStream1);
byte[] array = memoryStream1.ToArray();
LzmaBench.CBenchRandomGenerator cbenchRandomGenerator = new LzmaBench.CBenchRandomGenerator();
cbenchRandomGenerator.Set(bufferSize);
cbenchRandomGenerator.Generate();
CRC crc = new CRC();
crc.Init();
crc.Update(cbenchRandomGenerator.Buffer, 0U, cbenchRandomGenerator.BufferSize);
LzmaBench.CProgressInfo cprogressInfo = new LzmaBench.CProgressInfo();
cprogressInfo.ApprovedStart = (long)dictionarySize;
ulong size1 = 0;
ulong elapsedTime1 = 0;
ulong elapsedTime2 = 0;
ulong secondSize = 0;
MemoryStream memoryStream2 = new MemoryStream(cbenchRandomGenerator.Buffer, 0, (int)cbenchRandomGenerator.BufferSize);
MemoryStream memoryStream3 = new MemoryStream(capacity);
LzmaBench.CrcOutStream crcOutStream = new LzmaBench.CrcOutStream();
for (int index1 = 0; index1 < numIterations; ++index1)
{
cprogressInfo.Init();
memoryStream2.Seek(0L, SeekOrigin.Begin);
memoryStream3.Seek(0L, SeekOrigin.Begin);
encoder.Code((Stream)memoryStream2, (Stream)memoryStream3, -1L, -1L, (ICodeProgress)cprogressInfo);
ulong ticks = (ulong)(DateTime.UtcNow - cprogressInfo.Time).Ticks;
long position = memoryStream3.Position;
if (cprogressInfo.InSize == 0L)
{
throw new Exception("Internal ERROR 1282");
}
ulong elapsedTime3 = 0;
for (int index2 = 0; index2 < 2; ++index2)
{
memoryStream3.Seek(0L, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(array);
ulong num = (ulong)bufferSize;
DateTime utcNow = DateTime.UtcNow;
decoder.Code((Stream)memoryStream3, (Stream)crcOutStream, 0L, (long)num, (ICodeProgress)null);
elapsedTime3 = (ulong)(DateTime.UtcNow - utcNow).Ticks;
if ((int)crcOutStream.GetDigest() != (int)crc.GetDigest())
{
throw new Exception("CRC Error");
}
}
ulong size2 = (ulong)bufferSize - (ulong)cprogressInfo.InSize;
LzmaBench.PrintResults(dictionarySize, ticks, size2, false, 0UL);
Console.Write(" ");
LzmaBench.PrintResults(dictionarySize, elapsedTime3, (ulong)bufferSize, true, (ulong)position);
Console.WriteLine();
size1 += size2;
elapsedTime1 += ticks;
elapsedTime2 += elapsedTime3;
secondSize += (ulong)position;
}
Console.WriteLine("---------------------------------------------------");
LzmaBench.PrintResults(dictionarySize, elapsedTime1, size1, false, 0UL);
Console.Write(" ");
LzmaBench.PrintResults(dictionarySize, elapsedTime2, (ulong)bufferSize * (ulong)numIterations, true, secondSize);
Console.WriteLine(" Average");
return(0);
}
private static bool VerifyDigest(uint digest, byte[] data, uint offset, uint size)
{
return((int)CRC.CalculateDigest(data, offset, size) == (int)digest);
}
public static int LzmaBenchmark(int numIterations, uint dictionarySize)
{
if (numIterations <= 0)
{
return(0);
}
if (dictionarySize < 262144)
{
Console.WriteLine("\nError: dictionary size for benchmark must be >= 19 (512 KB)");
return(1);
}
Console.Write("\n Compressing Decompressing\n\n");
Encoder encoder = new Encoder();
Decoder decoder = new Decoder();
CoderPropID[] propIDs = new CoderPropID[1]
{
CoderPropID.DictionarySize
};
object[] properties = new object[1]
{
(int)dictionarySize
};
uint num = dictionarySize + 6291456;
uint capacity = num / 2u + 1024;
encoder.SetCoderProperties(propIDs, properties);
MemoryStream memoryStream = new MemoryStream();
encoder.WriteCoderProperties(memoryStream);
byte[] decoderProperties = memoryStream.ToArray();
CBenchRandomGenerator cBenchRandomGenerator = new CBenchRandomGenerator();
cBenchRandomGenerator.Set(num);
cBenchRandomGenerator.Generate();
CRC cRC = new CRC();
cRC.Init();
cRC.Update(cBenchRandomGenerator.Buffer, 0u, cBenchRandomGenerator.BufferSize);
CProgressInfo cProgressInfo = new CProgressInfo();
cProgressInfo.ApprovedStart = dictionarySize;
ulong num2 = 0uL;
ulong num3 = 0uL;
ulong num4 = 0uL;
ulong num5 = 0uL;
MemoryStream memoryStream2 = new MemoryStream(cBenchRandomGenerator.Buffer, 0, (int)cBenchRandomGenerator.BufferSize);
MemoryStream memoryStream3 = new MemoryStream((int)capacity);
CrcOutStream crcOutStream = new CrcOutStream();
for (int i = 0; i < numIterations; i++)
{
cProgressInfo.Init();
memoryStream2.Seek(0L, SeekOrigin.Begin);
memoryStream3.Seek(0L, SeekOrigin.Begin);
encoder.Code(memoryStream2, memoryStream3, -1L, -1L, cProgressInfo);
ulong ticks = (ulong)(DateTime.UtcNow - cProgressInfo.Time).Ticks;
long position = memoryStream3.Position;
if (cProgressInfo.InSize == 0)
{
throw new Exception("Internal ERROR 1282");
}
ulong num6 = 0uL;
for (int j = 0; j < 2; j++)
{
memoryStream3.Seek(0L, SeekOrigin.Begin);
crcOutStream.Init();
decoder.SetDecoderProperties(decoderProperties);
ulong outSize = num;
DateTime utcNow = DateTime.UtcNow;
decoder.Code(memoryStream3, crcOutStream, 0L, (long)outSize, null);
num6 = (ulong)(DateTime.UtcNow - utcNow).Ticks;
if (crcOutStream.GetDigest() != cRC.GetDigest())
{
throw new Exception("CRC Error");
}
}
ulong num7 = (ulong)(num - cProgressInfo.InSize);
PrintResults(dictionarySize, ticks, num7, decompressMode: false, 0uL);
Console.Write(" ");
PrintResults(dictionarySize, num6, num, decompressMode: true, (ulong)position);
Console.WriteLine();
num2 += num7;
num3 += ticks;
num4 += num6;
num5 = (ulong)((long)num5 + position);
}
Console.WriteLine("---------------------------------------------------");
PrintResults(dictionarySize, num3, num2, decompressMode: false, 0uL);
Console.Write(" ");
PrintResults(dictionarySize, num4, (ulong)(num * numIterations), decompressMode: true, num5);
Console.WriteLine(" Average");
return(0);
}