Debug Delphi multi-thread app - how to get the one consuming 100% CPU

Question

I'm debugging a multi-thread delphi app. We are having a trouble that, after connect to the server, the client app is getting 100% of the CPU. Is there a way for me to debug and know shich thread is dois that?

Answer 1

Process Explorer will give you usage details down to the thread level for any process.

1. Run your app
2. Run Process Explorer (after downloading it ;-)
3. Double click on your executable in the process list
4. Select the Threads tab and there you will see:
   1. The Thread ID
   2. CPU Usage
   3. Cycles Delta
   4. And the start address

The TID ought to be enough to nail down your CPU hogging thread.