[phobos] Proposal of StopWatch module

[David Simcha]

Looks good.  One small convenience feature I'd like, though, is the ability
to do simple microbenchmarks with less boilerplate, something like:

import std.stopwatch, std.stdio;

void main() {
    writeln(timeMillisecond({
        // Do stuff.
    });
}

timeMilliseconds would simply take a void delegate(), time its execution and
return the time it takes in milliseconds.  Similar things could be done for
timeMicroseconds and timeSeconds.

On Tue, Aug 17, 2010 at 6:43 AM, SHOO <zan77137 at nifty.com> wrote:

> I made the module of the stopwatch, so I suggest it again here.
>
> I suggested a time handling module that I called std.time before.
> Unfortunately itself was not able to contribute to Phobos for the issue
> of license. But, an important function was included in it. It is what is
> the StopWatch suggested this time.
>
> I have some knowledge about machine control engineering. In the field of
> the machine control engineering, the high accuracy time measurement
> often plays an important role.
> For example, the case wants to perform the measurement of the voltage
> with time by millisecond order for feedback control. When it looks like
> it, resolution power is not enough by time acquisition such as C's time
> function in many cases.
>
> Or the high accuracy time measurement is important in the game
> programming, too. Or in benchmark testing, too.
>
> There is std.perf in Phobos as a module with this role now.
> However, the module is unlisted, and a license doesn't seem to be a
> Boost license, too.
> I did not refer Tango at all about this class and examined and made it
> in my own hand completely.
>
> Here is the module to suggest this time:
>    http://ideone.com/TVw1P
>
> # This module is tested by Windows (real) and Ubuntu (virtual PC).
>
> Please look at it once by all means, and review it.
> I think that I will commit it at 2010-08-22T15:00Z as far as there is
> not serious dissenting opinion.
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