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c#multithreadingperformancecpu-usage
Devin
Devin

Reputation: 1064

Determining thread performance

On some machines, my .Net application is idling at ~10% CPU usage. My first inclination is that one of my background worker threads is executing some instructions that I'm not aware of, but I don't know how to isolate CPU usage by thread (Task Manager simply tells me that my process uses x number of threads [usually around 30], not which threads are hogging CPU).

I know that programmatically I can iterate through the threads as mentioned in this post but I don't know if that will give me the information I need. Is there a profiler (commercial or otherwise) that will allow me analyze CPU usage per thread?

Upvotes: 5

Views: 570

Answers (4)

Feng Yuan
Feng Yuan

Reputation: 707

Try Perfview from Microsoft: http://www.microsoft.com/en-us/download/details.aspx?id=28567

You can use system ETW events to figure out lots of low CPU utilization issues.

Upvotes: 2

MarkPflug
MarkPflug

Reputation: 29528

How about attaching a debugger and hitting the "break" button. Then just see if any of the threads are running in your code?

Upvotes: 1

NominSim
NominSim

Reputation: 8511

I would recommend JetTrace dotTrace Performance. It will tell you where your code is spending most of its time, as well as the thread. (It is commercial but comes with a free 10 day trial.)

Upvotes: 4

Uwe Keim
Uwe Keim

Reputation: 40736

I second NominSim's answer and would recommend Red Gate's ANTS Performance Profiler. Helped me a lot in the past.

They do have a 14-days free trial version.

Upvotes: 0

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