Re: [DOTNET] Measuring performance

[Mads Houmann]

If you don't mind calling out to Win32 you can use the PerformanceCounter
APIs like this:

using System;
using System.Threading;
using System.Runtime.InteropServices;
using System.Security;

[SuppressUnmanagedCodeSecurity]
public sealed class StopWatch
{
 private long startTime = 0;
 private long stopTime = 0;

 public void Start() {
  stopTime = 0;
  QueryPerformanceCounter(ref startTime);
 }

 public void Stop() {
  QueryPerformanceCounter(ref stopTime);
 }

 public long GetElapsedTicks() {
  if (stopTime == 0)
   return 0;
  return stopTime - startTime;
 }

 public double GetElapsedSeconds() {
  if (stopTime == 0)
   return 0.0;
  long frequency = 0;
  QueryPerformanceFrequency(ref frequency);
  return  (stopTime - startTime) / (double) frequency;
 }

 [DllImport("kernel32")]
 private static extern bool QueryPerformanceCounter(ref long
lpPerformanceCount);

 [DllImport("kernel32")]
 private static extern bool QueryPerformanceFrequency(ref long lpFrequency);
}


----- Original Message -----
From: "Mattias Konradsson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, April 10, 2002 5:58 AM
Subject: [DOTNET] Measuring performance


> I want to be able to measure how many milliseconds/seconds a method takes
to
> execute (and print it right on the page, not store it elsewhere), I hazard
a
> guess
> that it's possible with performance counters but I haven't been able to
find
> the relevant code, can anyone shove me in the right direction?
>
> Best regards
> ----
> Mattias Konradsson
> "Reinventing the wheel since 1977"
>
> You can read messages from the DOTNET archive, unsubscribe from DOTNET, or
> subscribe to other DevelopMentor lists at http://discuss.develop.com.

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