CodeTimer(bool startFresh, ITestOutputHelper output,
string format, params object[] args)
{
this.output = output;
if (startFresh)
{
PrepareForOperation();
}
this.testText = string.Format(format, args);
this.gen0Start = GC.CollectionCount(0);
this.gen1Start = GC.CollectionCount(1);
this.gen2Start = GC.CollectionCount(2);
// Get the time before returning so that any code above doesn't
// impact the time.
this.startTime = Stopwatch.GetTimestamp();
#if NET45
var handle = Process.GetCurrentProcess().Handle;
#else
var handle = Process.GetCurrentProcess().SafeHandle.DangerousGetHandle();
#endif
this.startCycles = CycleTime.Process(new SafeWaitHandle(handle, false));
}
public void Dispose()
{
ulong elapsedCycles = CycleTime.Process(new SafeWaitHandle(Process.GetCurrentProcess().Handle, false)) - this.startCycles;
long elapsedTime = Stopwatch.GetTimestamp() - this.startTime;
long milliseconds = elapsedTime * 1000 / Stopwatch.Frequency;
if (false == string.IsNullOrEmpty(this.testText))
{
this.output.WriteLine("{0}", this.testText);
this.output.WriteLine(" {0,7:N0}ms {1,11:N0}Kc (G0={2,4}, G1={3,4}, G2={4,4})",
milliseconds,
elapsedCycles / 1000,
GC.CollectionCount(0) - this.gen0Start,
GC.CollectionCount(1) - this.gen1Start,
GC.CollectionCount(2) - this.gen2Start);
}
}