public static void BulkSpeedTest(HashInfo hashInfo)
{
Console.WriteLine("[BULK SPEED TEST]");
Console.WriteLine($"Frequency: {s_Frequency / 1e6d:F2} MHz");
Console.WriteLine($"Keys Length: {BST_SIZE} Bytes");
Console.WriteLine($"Repetitions: {BST_TRIALS}");
using (SpeedTestOptimizer())
{
for (Int32 i = 0; i < WARMUP_ITERATIONS; ++i)
{
GetAverageSpeed(hashInfo, BST_SIZE, BST_TRIALS, 0);
}
Double[] speed = new Double[8];
for (Int32 align = 0; align < 8; ++align)
{
speed[align] = GetAverageSpeed(hashInfo, BST_SIZE, BST_TRIALS, align);
Console.WriteLine($" - Alignment {align}: {FormatSpeed(speed[align])}");
}
Console.WriteLine($" - Average Speed: {FormatSpeed(StatsUtilities.Mean(speed))}");
}
}
private static Double GetAverageSpeed(HashInfo hashInfo, Int32 length, Int32 repetitions, Int32 align)
{
RandomXS r = new RandomXS();
Byte[] key = new Byte[length + 512];
unsafe
{
fixed(Byte *pin = key)
{
UInt64 pinValue = (UInt64)pin;
UInt64 alignValue = ((pinValue + 255ul) & 0xFFFFFFFFFFFFFF00ul) + (UInt64)align;
Int32 offset = (Int32)(alignValue - pinValue);
List <Double> results = new List <Double>(repetitions);
for (Int32 i = 0; i < repetitions; ++i)
{
r.NextBytes(key, offset, length);
Hash hash = hashInfo.Initializer((UInt32)i);
Double start = NativeMethods.GetTime();
hash.ComputeHash(key, offset, length);
Double end = NativeMethods.GetTime();
Double ms = ((end - start + 1.0d) * 1000.0d) / s_Frequency;
Double bps = (length * 1000.0d) / ms;
if (bps >= 0.0d)
{
results.Add(bps);
}
}
Double mean = StatsUtilities.Mean(results);
Double threshold = 2.0d * StatsUtilities.StandardDeviation(results, mean);
for (Int32 i = results.Count - 1; i >= 0; --i)
{
if (Math.Abs(results[i] - mean) > threshold)
{
results.RemoveAt(i);
}
}
return(StatsUtilities.Mean(results));
}
}
}
