/// <summary>
/// Initializes a new instance of the CodeTimer class.
/// </summary>
/// <param name="startFresh">
/// If true, forces a GC in order to count just new garbage collections.
/// </param>
/// <param name="format">
/// A composite text string.
/// </param>
/// <param name="args">
/// An array of objects to write with <paramref name="format" />.
/// </param>
CodeTimer(bool startFresh,
string format,
params object[] args)
{
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();
this.startCycles = CycleTime.Thread();
}
public void Dispose()
{
ulong elapsedCycles = CycleTime.Thread() - this.startCycles;
// Get the elapsed time now so that any code below doesn't impact
// the time.
long elapsedTime = Stopwatch.GetTimestamp() - this.startTime;
long milliseconds = (elapsedTime * 1000) / Stopwatch.Frequency;
if (false == string.IsNullOrEmpty(this.testText))
{
ConsoleColor defColor = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("{0}", this.testText);
Console.ForegroundColor = defColor;
Console.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);
}
}
