private static bool RunJoinTest3(int leftSize, int rightSize, int loops)
{
TestHarness.TestLog("RunJoinTest3({0}, {1}, {2})", leftSize, rightSize, loops);
Wrapped <int>[] left = new Wrapped <int> [leftSize];
Wrapped <int>[] right = new Wrapped <int> [rightSize];
for (int i = 0; i < left.Length; i++)
{
left[i] = new Wrapped <int>(i);
}
for (int i = 0; i < right.Length; i++)
{
right[i] = new Wrapped <int>(i * right.Length);
}
Func <Wrapped <int>, int> identityKeySelector = delegate(Wrapped <int> x) { return(x.val); };
IEnumerable <Pair> seqQuery = Enumerable.Join <Wrapped <int>, Wrapped <int>, int, Pair>(
left, right, identityKeySelector, identityKeySelector, delegate(Wrapped <int> x, Wrapped <int> y) { return(new Pair(x.val, y.val)); });
IEnumerable <Pair> parQuery = left.AsParallel().Join <Wrapped <int>, Wrapped <int>, int, Pair>(
right.AsParallel(), identityKeySelector, identityKeySelector, delegate(Wrapped <int> x, Wrapped <int> y) { return(new Pair(x.val, y.val)); });
PerfHelpers.DrivePerfComparison(
delegate {
foreach (Pair p in seqQuery)
{
// Simulate work:
int z = 0;
for (int i = 0; i < 5; i++)
{
z *= p.x;
z *= p.y;
}
}
},
delegate {
foreach (Pair p in parQuery)
{
// Simulate work:
int z = 0;
for (int i = 0; i < 5; i++)
{
z *= p.x;
z *= p.y;
}
}
},
loops);
return(true);
}