This class allows you to wrap the stuff you want timed in a disposable using block. The timer is started when you enter the block and stops when the using clause is disposed.
void Main()
{
double elapsed1 ;
double elapsed2 ;
var iterations = 1e7;
using (var timedTask = new TimedTask("Method1"))
{//Write your code here and measure its performance
for (var i = 0; i < iterations; i++)
{
Method1_DoStuff();
}
elapsed1 = timedTask.ElapsedMs();
}
using (var timedTask = new TimedTask("Method2"))
{//Write your code here and measure its performance
for (var i = 0; i < iterations; i++)
{
Method2_DoStuff();
}
elapsed2 = timedTask.ElapsedMs();
}
if (elapsed1 < elapsed2)
String.Format("method1 is {0:###,###.##}x faster than method 1", elapsed2/elapsed1, elapsed1, elapsed2).Dump();
else
String.Format("method2 is {0:###,###.##}x faster than method 2", elapsed1/elapsed2, elapsed1, elapsed2).Dump();
}
string Method1_DoStuff() {
var x = "hello";
x = x + " pretty";
x = x + " world";
return x;
}
private static string _field;
string Method2_DoStuff() {
if (_field==null)
_field = "hello pretty world";
return _field;
}
class TimedTask : IDisposable
{
string _taskName;
Stopwatch sw;
public TimedTask(string taskName)
{
_taskName = taskName;
sw = new Stopwatch();
sw.Start();
}
public double ElapsedMs()
{
return sw.Elapsed.TotalMilliseconds;
}
public void Dispose()
{
sw.Stop();
string.Concat("completed ", _taskName, " in ", (sw.Elapsed.Ticks / 10000.0).ToString("###,##0.00 ms")).Dump();
}
}
The result looks something like this:
completed Method1 in 559.24 ms
completed Method2 in 45.65 ms
method2 is 12.25x faster than method 2
download linqpad
.linq file
