public static void Main(string[] args)
{
/*
* It's always good to call StartEarly.StartFillingEntropyPools() as early as possible when the application is launched.
* But during benchmarking performance below, then it's not really fair to let them start early.
*/
Benchmark("SystemRng", bytesBuffer =>
{
var mySystemRngCryptoServiceProvider = new SystemRng();
mySystemRngCryptoServiceProvider.GetBytes(bytesBuffer);
return(bytesBuffer);
});
Benchmark("RNGCryptoServiceProvider", bytesBuffer =>
{
using (var rng = RandomNumberGenerator.Create())
{
rng.GetBytes(bytesBuffer);
}
return(bytesBuffer);
});
/*
* Test each of the ThreadedSeedGeneratorRng and ThreadSchedulerRng prior to doing SafeRandom
* or FastRandom, because otherwise, SafeRandom will create static instances of them, which race, etc
* thus throwing off my results.
*/
Benchmark("ThreadedSeedGeneratorRng", bytesBuffer =>
{
var myThreadedSeedGeneratorRng = new ThreadedSeedGeneratorRng();
myThreadedSeedGeneratorRng.GetBytes(bytesBuffer);
return(bytesBuffer);
});
SleepForPools(3000);
Benchmark("ThreadedSeedGenerator(fast)", bytesBuffer =>
{
var myThreadedSeedGenerator = new ThreadedSeedGenerator();
var seed = myThreadedSeedGenerator.GenerateSeed(RandBytesLength, true);
return(seed);
});
Benchmark("ThreadedSeedGenerator(slow)", bytesBuffer =>
{
var myThreadedSeedGenerator = new ThreadedSeedGenerator();
var seed = myThreadedSeedGenerator.GenerateSeed(RandBytesLength, false);
return(seed);
});
Benchmark("ThreadSchedulerRNG(slow)", bytesBuffer =>
{
var threadSchedulerRng = new ThreadSchedulerRng();
threadSchedulerRng.GetBytes(bytesBuffer);
return(bytesBuffer);
});
SleepForPools(15000);
Benchmark(
"SafeRandom",
bytesBuffer => SafeRandom.StaticInstance.GetBytes(bytesBuffer.Length));
SleepForPools(15000);
Benchmark(
"FastRandom",
bytesBuffer => FastRandom.StaticInstance.GetBytes(bytesBuffer.Length));
SleepForPools(15000);
Console.WriteLine("");
PresentResults();
Console.WriteLine("");
Console.Error.WriteLine("Finished");
Console.Out.Flush();
Console.ReadKey();
}
public static void Main(string[] args)
{
// It's always good to StartFillingEntropyPools as early as possible when the application is launched.
// But if I'm benchmarking performance below, then it's not really fair to let them start early.
// StartEarly.StartFillingEntropyPools();
DateTime before;
DateTime after;
RandomResult result;
const int randBytesLength = 8 * 1024;
var results = new List <RandomResult>();
//AllZeros
result = new RandomResult {
AlgorithmName = "AllZeros"
};
before = DateTime.Now;
var randBytes = new byte[randBytesLength];
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
//SystemRng
result = new RandomResult {
AlgorithmName = "SystemRng"
};
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
var mySystemRngCryptoServiceProvider = new SystemRng();
mySystemRngCryptoServiceProvider.GetBytes(randBytes);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
//RNGCryptoServiceProvider
result = new RandomResult();
result.AlgorithmName = "RNGCryptoServiceProvider";
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
using (var rng = RandomNumberGenerator.Create())
{
rng.GetBytes(randBytes);
}
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
//ThreadedSeedGeneratorRng
result = new RandomResult();
result.AlgorithmName = "ThreadedSeedGeneratorRng";
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
var myThreadedSeedGeneratorRng = new ThreadedSeedGeneratorRng();
myThreadedSeedGeneratorRng.GetBytes(randBytes);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
Console.Write("Sleeping to allow pool to fill...");
Thread.Sleep(3000); // Should be enough time for its pool to fill up, so it won't slow down next:
Console.WriteLine(" Done.");
//ThreadedSeedGenerator(fast)
result = new RandomResult();
result.AlgorithmName = "ThreadedSeedGenerator(fast)";
Console.Write(result.AlgorithmName + " ");
var myThreadedSeedGenerator = new ThreadedSeedGenerator();
Array.Clear(randBytes, 0, randBytesLength);
before = DateTime.Now;
randBytes = myThreadedSeedGenerator.GenerateSeed(randBytesLength, true);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
//ThreadedSeedGenerator(slow)
result = new RandomResult();
result.AlgorithmName = "ThreadedSeedGenerator(slow)";
Console.Write(result.AlgorithmName + " ");
Array.Clear(randBytes, 0, randBytesLength);
before = DateTime.Now;
randBytes = myThreadedSeedGenerator.GenerateSeed(randBytesLength, false);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
//ThreadSchedulerRNG(slow)
result = new RandomResult();
result.AlgorithmName = "ThreadSchedulerRng";
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
var myThreadSchedulerRNG = new ThreadSchedulerRng();
myThreadSchedulerRNG.GetBytes(randBytes);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
const int numResults = 14;
Console.Write("ticks bit positions ");
before = DateTime.Now;
var ticksResults = new RandomResult[numResults];
var ticksResultsBytes = new byte[numResults][];
for (var i = 0; i < numResults; i++)
{
ticksResults[i] = new RandomResult
{
AlgorithmName = "ticks bit #" + i.ToString().PadLeft(2)
};
ticksResultsBytes[i] = new byte[randBytesLength];
}
for (var i = 0; i < randBytesLength; i++)
{
for (var j = 0; j < 8; j++)
{
var ticks = DateTime.Now.Ticks;
for (var bitPos = 0; bitPos < numResults; bitPos++)
{
ticksResultsBytes[bitPos][i] <<= 1;
ticksResultsBytes[bitPos][i] += (byte)(ticks % 2);
ticks >>= 1;
}
Thread.Sleep(1);
}
}
after = DateTime.Now;
for (var i = 0; i < numResults; i++)
{
ticksResults[i].TimeSpan = after - before;
ticksResults[i].CompressionRatio = CompressionUtility.GetCompressionRatio(ticksResultsBytes[i]).Result;
results.Add(ticksResults[i]);
}
Console.WriteLine((after - before).ToString());
Console.Write("Sleeping to allow pool to fill...");
Thread.Sleep(15000); // Should be enough time for its pool to fill up, so it won't slow down next:
Console.WriteLine(" Done.");
// I want to test each of the ThreadedSeedGeneratorRng and ThreadSchedulerRng prior to doing TinHatRandom
// or TinHatURandom, because otherwise, TinHatRandom will create static instances of them, which race, etc.
// thus throwing off my benchmark results.
//SafeRandom
result = new RandomResult {
AlgorithmName = "SafeRandom"
};
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
randBytes = SafeRandom.StaticInstance.GetBytes(randBytes.Length);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
Console.Write("Sleeping to allow pool to fill...");
Thread.Sleep(15000); // Should be enough time for its pool to fill up, so it won't slow down next:
Console.WriteLine(" Done.");
result = new RandomResult {
AlgorithmName = "FastRandom"
};
Console.Write(result.AlgorithmName + " ");
before = DateTime.Now;
randBytes = FastRandom.StaticInstance.GetBytes(randBytes.Length);
after = DateTime.Now;
result.TimeSpan = after - before;
result.CompressionRatio = CompressionUtility.GetCompressionRatio(randBytes).Result;
results.Add(result);
Console.WriteLine((after - before).ToString());
Console.Write("Sleeping to allow pool to fill...");
Thread.Sleep(15000); // Should be enough time for its pool to fill up, so it won't slow down next:
Console.WriteLine(" Done.");
Console.WriteLine("");
var maxCompressionRatio = double.MinValue;
var minCompressionRatio = double.MaxValue;
var longestName = 0;
foreach (var theResult in results)
{
if (theResult.AlgorithmName.Length > longestName)
{
longestName = theResult.AlgorithmName.Length;
}
if (theResult.CompressionRatio < minCompressionRatio)
{
minCompressionRatio = theResult.CompressionRatio;
}
if (theResult.CompressionRatio > maxCompressionRatio)
{
maxCompressionRatio = theResult.CompressionRatio;
}
}
Console.WriteLine("AlgorithmName".PadLeft(longestName) + " : bits per bit : elapsed sec : effective rate");
foreach (var theResult in results)
{
var bitsPerBit = (theResult.CompressionRatio - minCompressionRatio) /
(maxCompressionRatio - minCompressionRatio);
double byteRate;
string byteRateString;
if (theResult.TimeSpan.TotalSeconds == 0)
{
if (theResult.CompressionRatio == minCompressionRatio)
{
byteRateString = "0";
}
else
{
byteRateString = "infinity";
}
}
else
{
byteRate = bitsPerBit * randBytesLength / theResult.TimeSpan.TotalSeconds;
if (byteRate > 1000000)
{
byteRateString = (byteRate / 1000000).ToString("F2") + " MiB/sec";
}
else if (byteRate > 1000)
{
byteRateString = (byteRate / 1000).ToString("F2") + " KiB/sec";
}
else
{
byteRateString = byteRate.ToString("F2") + " B/sec";
}
}
Console.WriteLine(theResult.AlgorithmName.PadLeft(longestName) + " : " +
bitsPerBit.ToString("0.000").PadLeft(12) + " : " +
theResult.TimeSpan.TotalSeconds.ToString("0.000").PadLeft(11) + " : " +
byteRateString.PadLeft(14));
}
Console.WriteLine("");
Console.Error.WriteLine("Finished");
Console.Out.Flush();
Console.ReadKey();
}