public unsafe void Benchmark()
{
byte[] data = new byte[4096];
Random r = new Random(1);
r.NextBytes(data);
//Prime the run
Murmur3Orig mm3 = new Murmur3Orig();
for (int x = 0; x < 1000; x++)
{
mm3.ComputeHash(data);
fixed(byte *lp = data)
{
for (int x = 0; x < 1000; x++)
{
Murmur3.ComputeHash(lp, data.Length, out ulong value1, out ulong value2);
}
for (int x = 0; x < 1000; x++)
{
Footer.ComputeChecksum((IntPtr)lp, out long value3, out int value4, data.Length);
}
}
Stopwatch sw1 = new Stopwatch();
Stopwatch sw2 = new Stopwatch();
Stopwatch sw3 = new Stopwatch();
sw1.Start();
for (int x = 0; x < 10000; x++)
mm3.ComputeHash(data); }
sw1.Stop();
fixed(byte *lp = data)
{
sw2.Start();
for (int x = 0; x < 10000; x++)
{
Murmur3.ComputeHash(lp, data.Length, out ulong value1, out ulong value2);
}
sw2.Stop();
sw3.Start();
for (int x = 0; x < 10000; x++)
{
Footer.ComputeChecksum((IntPtr)lp, out long value3, out int value4, data.Length);
}
sw3.Stop();
}
System.Console.WriteLine("orig: " + (4096 * 10000 / sw1.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
System.Console.WriteLine("mine: " + (4096 * 10000 / sw2.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
System.Console.WriteLine("old: " + (4096 * 10000 / sw3.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
}
public unsafe void TestIsSame()
{
byte[] data = new byte[4096];
Random r = new Random();
for (int x = 0; x < 100; x++)
{
r.NextBytes(data);
Murmur3Orig mm3 = new Murmur3Orig();
byte[] checksum = mm3.ComputeHash(data);
byte[] checksum2 = new byte[16];
fixed(byte *lp = data)
{
ulong value1;
ulong value2;
Murmur3.ComputeHash(lp, data.Length, out value1, out value2);
Array.Copy(BitConverter.GetBytes(value1), 0, checksum2, 0, 8);
Array.Copy(BitConverter.GetBytes(value2), 0, checksum2, 8, 8);
}
Assert.IsTrue(checksum2.SequenceEqual(checksum));
}
}
public unsafe void TestIsSame()
{
byte[] data = new byte[4096];
Random r = new Random();
for (int x = 0; x < 100; x++)
{
r.NextBytes(data);
Murmur3Orig mm3 = new Murmur3Orig();
byte[] checksum = mm3.ComputeHash(data);
byte[] checksum2 = new byte[16];
fixed (byte* lp = data)
{
ulong value1;
ulong value2;
Murmur3.ComputeHash(lp, data.Length, out value1, out value2);
Array.Copy(BitConverter.GetBytes(value1), 0, checksum2, 0, 8);
Array.Copy(BitConverter.GetBytes(value2), 0, checksum2, 8, 8);
}
Assert.IsTrue(checksum2.SequenceEqual(checksum));
}
}
public unsafe void Benchmark()
{
byte[] data = new byte[4096];
Random r = new Random(1);
r.NextBytes(data);
//Prime the run
Murmur3Orig mm3 = new Murmur3Orig();
for (int x = 0; x < 1000; x++)
mm3.ComputeHash(data);
fixed (byte* lp = data)
{
ulong value1;
ulong value2;
long value3;
int value4;
for (int x = 0; x < 1000; x++)
Murmur3.ComputeHash(lp, data.Length, out value1, out value2);
for (int x = 0; x < 1000; x++)
Footer.ComputeChecksum((IntPtr)lp, out value3, out value4, data.Length);
}
Stopwatch sw1 = new Stopwatch();
Stopwatch sw2 = new Stopwatch();
Stopwatch sw3 = new Stopwatch();
sw1.Start();
for (int x = 0; x < 10000; x++)
mm3.ComputeHash(data);
sw1.Stop();
fixed (byte* lp = data)
{
ulong value1;
ulong value2;
long value3;
int value4;
sw2.Start();
for (int x = 0; x < 10000; x++)
Murmur3.ComputeHash(lp, data.Length, out value1, out value2);
sw2.Stop();
sw3.Start();
for (int x = 0; x < 10000; x++)
Footer.ComputeChecksum((IntPtr)lp, out value3, out value4, data.Length);
sw3.Stop();
}
System.Console.WriteLine("orig: " + (4096 * 10000 / sw1.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
System.Console.WriteLine("mine: " + (4096 * 10000 / sw2.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
System.Console.WriteLine("old: " + (4096 * 10000 / sw3.Elapsed.TotalSeconds / 1024 / 1024).ToString("0 MB/S"));
}