/// <summary>
/// Times the evaluation of a polynomial
/// </summary>
/// <param name="p">The polynomial to evaluate</param>
public static double TimeEvaluate(Polynomial p)
{
double value = 2.0;
Console.WriteLine("{0}", p.GetType().Name);
// Time the first iteration. This one is done
// separately so that we can figure out the startup
// overhead separately...
long start = Stopwatch.GetTimeStamp();
IPolynomial iPoly = p.GetEvaluate();
long delta = Stopwatch.GetTimeStamp() - start;
Console.WriteLine("Overhead = {0:f2} seconds",
(double)delta / Stopwatch.Frequency);
Console.WriteLine("Eval({0}) = {1}", value, iPoly.Evaluate(value));
int limit = 100000;
Stopwatch timer = Stopwatch.StartNew();
// Evaluate the polynomial the required number of
// times.
double result = 0;
for (int i = 0; i < limit; i++)
{
result += iPoly.Evaluate(value);
}
timer.Stop();
double ips = (double)limit / (double)timer.ElapsedMilliseconds / 1000D;
Console.WriteLine("Evalutions/Second = {0:f0}", ips);
Console.WriteLine();
return(ips);
}
/// <summary>
/// Times the evaluation of a polynomial
/// </summary>
/// <param name="p">The polynomial to evaluate</param>
public static double TimeEvaluate(Polynomial p)
{
double value = 2.0;
Console.WriteLine("{0}", p.GetType().Name);
// Time the first iteration. This one is done
// separately so that we can figure out the startup
// overhead separately...
long start = Counter.Value;
p.Evaluate(0.0); // do the first iteration.
long delta = Counter.Value - start;
Console.WriteLine("Overhead = {0:f2} seconds", (double)delta / Counter.Frequency);
Console.WriteLine("Eval({0}) = {1}", value, p.Evaluate(value));
int limit = 100000;
start = Counter.Value;
// Evaluate the polynomial the required number of
// times.
double result = 0;
for (int i = 0; i < limit; i++)
{
result += p.Evaluate(value);
}
delta = Counter.Value - start;
double ips = (double)limit * ((double)Counter.Frequency / (double)delta);
Console.WriteLine("Evalutions/Second = {0:f0}", ips);
Console.WriteLine();
return(ips);
}
