unsafe public static bool IsSubtype(SharedHeapService.Allocation *childData,
SystemType parent)
{
UIntPtr childHandle = SharedHeapService.GetType(childData);
return(IsSubtype(childHandle, parent.id));
}
//
// The goal of this routine is to focus on the shared heap operations
// themselves. So we allocate and then free the same amount of memory
// repeatedly, which (for small region allocations) won't cause us to
// go to the Page manager in steady state.
//
public static void TimeCycle(int bytes, int iterations)
{
ulong before = Processor.CycleCount;
for (int loop = 0; loop < iterations; loop++)
{
SharedHeapService.Allocation *mem;
mem = (SharedHeapService.Allocation *)
SharedHeapService.Allocate((UIntPtr)bytes, typeof(byte).GetSystemType(), 0);
SharedHeapService.Free(mem);
}
ulong after = Processor.CycleCount;
//
// Tell the world.
//
Console.Write("\nTested {0} alloc/free iterations of {1} bytes\n",
iterations, bytes);
Console.Write("Total cycles: {0}\n", after - before);
Console.Write("\n\n");
}
