Measuring Execution time

[Clayton via Digitalmars-d-learn]

On Wednesday, 22 July 2015 at 09:32:15 UTC, John Colvin wrote:
> On Wednesday, 22 July 2015 at 09:23:36 UTC, Clayton wrote:
>> [...]
>
> The normal way of doing this would be using 
> std.datetime.StopWatch:
>
>     StopWatch sw;
>     sw.start();
>     algorithm();
>     long exec_ms = sw.peek().msecs;

Am wondering how possible is to restrict that all algorithms get 
run on a specific core( e.g. CPU 0 ) since I wanted my test run 
on the same environment.