The Old New Thing

Psychic debugging: Why your thread is spending all its time processing meaningless thread timers

October 16, 2008 Oct 16, 2008 10/16/08

Raymond Chen

I was looking at one of those "my program is consuming 100% of the CPU and I don't know why" bugs, and upon closer investigation, the proximate reason the program was consuming 100% CPU was that one of the threads was being bombarded with messages where the is . The program was dispatching them as fast as it could, but the messages just kept...