private static void TestRDTSCP()
{
if (!CPUID.ISSupported(CPUID.CPUIDFeature.InvariantTSC))
{
Console.WriteLine("Invariant TSC is not supported, RDTSC isn't reliable as a wall clock");
}
const int LOOP = 1000000;
var sw = Stopwatch.StartNew();
var start = Intrinsincs.RDTSCP();
for (var i = 0; i < LOOP; i++)
{
Intrinsincs.RDTSCP();
}
var end = Intrinsincs.RDTSCP();
sw.Stop();
Console.WriteLine("SW: {0}ms", sw.ElapsedMilliseconds);
Console.WriteLine("RDTSCP: {0}ms", (end - start) / MHZ);
Console.WriteLine("RDTSCP: {0}cycles", (end - start) / LOOP);
}
static public void Main(string[] args)
{
Intrinsincs.Init();
TestCPUID();
TestBSWAP32();
//TestBSWAP64();
TestBSF16();
TestBSF32();
TestBSF64();
TestBSR16();
TestBSR32();
TestBSR64();
if (CPUID.ISSupported(CPUID.CPUIDFeature.POPCNT))
{
TestPOPCNT16();
TestPOPCNT32();
TestPOPCNT64();
}
else
{
Console.WriteLine("POPCNT not supported, skipping");
}
TestRDTSC();
if (CPUID.ISSupported(CPUID.CPUIDFeature.RDTSCP))
{
TestRDTSCP();
}
else
{
Console.WriteLine("RDTSCP not supported, skipping");
}
}