One of the main features of the TPL is to extend loops to run in parallel. However, you need to be careful with parallel processing, as it can actually make your software slower while doing simple tasks. The overheads involved with marshalling the multiple tasks can dwarf the execution of the workload for trivial operations.
For example, take the following simple for loop:
for (int i = 0; i < array.Length; i++)
{
sum += array[i];
}
The array in the preceding for loop contains 100,000 integers, but adding integers is one of the easiest things a CPU can do and using a for loop on an array is a very quick way of enumerating. This accumulation will complete in under a tenth of a millisecond on a reasonably modern machine. ...
