I have a multithreaded C# application, where the core logic sits in a Timer.Elapsed
event handler. The event handler contains 2 for
loops which executes a maximum of n * n = 5 * 5 = 25 times
.
The application performs well on my PC. I ran VS 2010 Profiler
against the application and CPU usage averages at 20% .
The company tester says that on his PC this jumps to between 50% and 100% on his PC. This is causing a performance issues for him.
X
amount of the CPU?Any help would be appreciated.
I'm guessing you really mean the third bullet, but we can't answer that without knowing what the code is doing; but (random suggestions without any context):
Invoke
(or the UI's equivalent)You're in wondering and guessing mode. Forget CPU percent. What pros do is find out why the program's spending time and if it's necessary.
What you could do is just run that code flat out in a long loop, and sample it. I use this method. Stack samples will land preferentially in the heavy branches of the call tree. Chances are you can lop off some of those heavy branches and get a nice speedup.
just add the Thread.Sleep(1);
inside your for loop. this stabilize the CPU usage and restrict from using CPU at Maximum speed.
May be your application runs multiple threads. I have same issue that runs multiple threads and in each thread there is continuous update which makes the application usage from 50% to 100%.
After investigating the issue, I have just introduced the delay in continuous loop of the thread (Thread(100)). This brings the application usage back to 1% to 3%.
Add Thread.Sleep(int); in the code to reduce cpu time. even just 30 milliseconds can save the juice of the processor.
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