static void RunTests(byte[] input)
{
var expected = s_md5.ComputeHash(input);
var actuals = new[]
{
Md5_1_Simple.GetBytes(input),
Md5_2_Unwind.GetBytes(input),
Md5_3_Unmanaged.GetBytes(input),
Md5_4_Constants.GetBytes(input),
Md5_5_InlineRotate.GetBytes(input),
Md5_6_NoTempVar.GetBytes(input),
Md5_7_Methods.GetBytes(input),
Md5_8_NoLea.GetBytes(input),
};
for (var i = 0; i < actuals.Length; i++)
{
AssertEqual(expected, actuals[i], i + 1);
}
}
static unsafe void RunBenchmarks(int count, int length)
{
if (count < 2 || length < 0)
{
throw new ArgumentException();
}
$"Count: {count}, Length: {length}".Dump();
" Generating test cases".Dump();
var testCases = CreateTestCases(count, length);
" Running tests".Dump();
RunTests(testCases[0]);
RunTests(testCases[1]);
" Running benchmarks".Dump();
Stopwatch sw;
Md5Digest digest;
// ========== Native ===================================================================================
var native = s_md5;
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
native.ComputeHash(test);
}
sw.Stop();
$" Native: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 1 Simple =================================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_1_Simple.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" Simple: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 2 Unwind =================================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_2_Unwind.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" Unwind: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 3 Unmanaged ==============================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_3_Unmanaged.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" Unmanaged: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 4 Constants ==============================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_4_Constants.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" Constants: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 5 InlineRotate ===========================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_5_InlineRotate.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" InlineRotate: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 6 NoTempVar ==============================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_6_NoTempVar.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" NoTempVar: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 7 Methods ================================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_7_Methods.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" Methods: {sw.Elapsed.TotalMilliseconds}".Dump();
// ========== 8 NoLea ==================================================================================
GC.Collect();
sw = Stopwatch.StartNew();
foreach (var test in testCases)
{
fixed(byte *ptr = test)
Md5_8_NoLea.GetDigest(ptr, test.Length, &digest);
}
sw.Stop();
$" NoLea: {sw.Elapsed.TotalMilliseconds}".Dump();
"".Dump();
}