/// <summary>
/// each objClass each gets numOfClasses number of structs
/// </summary>
public heavyClass[] getMultiCallerClasses(int numOfClasses, int numOfCallers)
{
var o = new objClass();
var a = new heavyClass[numOfClasses * numOfCallers];
int count = 0;
for (int i = 0; i < numOfCallers; i++)
{
var ia = o.getClasses(numOfClasses);
foreach (var c in ia)
{
a[count++] = c;
}
}
return a;
}
public void compare(int times)
{
int x = 10000;
int y = 100;
var b = new builder();
var o = new objClass();
var a = new double[times];
var mem = new List<long>(times);
Stopwatch s = new Stopwatch();
Console.WriteLine("Working...");
for (int j = 0; j < 6; j++)
{
GC.WaitForFullGCComplete();
switch (j)
{
case 0:
Console.WriteLine("Structs...");
for (int i = 0; i < times; i++)
{
s.Start();
o.getStructs(x * 100);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
case 1:
Console.WriteLine("Classes...");
for (int i = 0; i < times; i++)
{
s.Start();
o.getClasses(x * 100);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
case 2:
Console.WriteLine("Structs + concat...");
for (int i = 0; i < times; i++)
{
s.Start();
b.getMultiCallerStructs(x,y);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
case 3:
Console.WriteLine("Classes + concat...");
for (int i = 0; i < times; i++)
{
s.Start();
b.getMultiCallerClasses(x,y);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
case 4:
Console.WriteLine("Structs + Recursive + concat...");
for (int i = 0; i < times; i++)
{
s.Start();
b.getStructRecursive(10, x, y);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
case 5:
Console.WriteLine("Classes + Recursive + concat...");
for (int i = 0; i < times; i++)
{
s.Start();
b.getClassRecursive(10, x, y);
s.Stop();
a[i] = s.Elapsed.TotalMilliseconds;
s.Reset();
mem.Add(GC.GetTotalMemory(false));
}
break;
default:
Console.WriteLine("huh?");
break;
}
double max = a.Max();
Console.WriteLine("Max: {0}", max);
double min = a.Min();
Console.WriteLine("Min: {0}", min);
double mean = a.Average();
Console.WriteLine("Mean: {0}", mean);
var deviations = new double[a.Length];
for (int i = 0; i < a.Length; i++)
{
deviations[i] = Math.Pow((a[i] - mean), 2.0);
}
double averageVariance = deviations.Average();
Console.WriteLine("Variance: {0}", averageVariance);
//The higher this is, the more GC spikes we had
double standardDeviation = Math.Sqrt(averageVariance);
Console.WriteLine("Population Standard Deviation: {0}", standardDeviation);
var adjusted = new List<double>();
for (int i = 0; i < a.Length; i++)
{
if (deviations[i] < averageVariance)
{
adjusted.Add(a[i]);
}
}
//This is to remove the spikes from GC
var adjustedMean = adjusted.Average();
Console.WriteLine("Adjusted Mean: {0}", adjustedMean);
var avgMem = mem.Average();
Console.WriteLine("Average Memory: {0}", avgMem/1000000.0);
Console.WriteLine();
mem.Clear();
}
}