digitalmars.D - Question to std.perf users
- Bill Baxter (25/25) Apr 18 2008 Is anyone using std.perf's scoped counter?
Is anyone using std.perf's scoped counter? As in scope timer = new PerformanceCounterScope!(PerformanceCounter); // [..do stuff..] timer.stop(); auto msec = timer.milliseconds(); or it could take the form scope timer = new PerformanceCounter.scope_type; // ... same as above Basically all it does is automatically call "start()" for you. Seems like a waste to me. Calling start() isn't that hard, and is clearer. The article by Matthew Wilson referenced in the documentation even says it's not very useful: """ However, the observed use of these classes — in almost all cases — along with the strong requirement for them to be as efficient as possible, has shown this to be a mistake. Because instances are often used in a number of start()-stop() cycles, as can be seen in the test program, having start() called in the constructor complicates the semantics for no net benefit. """ --- http://www.ddj.com/windows/184416651 So I say it should just be ripped out. Unless someone things it's really great and uses it all the time. --bb
Apr 18 2008