Re: need help with AUHAL audio glitching at high cpu utilisation
Re: need help with AUHAL audio glitching at high cpu utilisation
- Subject: Re: need help with AUHAL audio glitching at high cpu utilisation
- From: Jim Wintermyre <email@hidden>
- Date: Wed, 24 Jun 2009 12:42:01 -0700
I havn't found a tool which gives detailed per-thread and per-core CPU load
information, so I havn't been able to inspect things in as much detail as
I'd like. I'd like to be able to see the kernel's view of timing information
for each timslice allocated to CoreAudio and to see the split between
CoreAudio CPU usage and my code's usage. Any suggestions? Also is there a
way (outside my app) to monitor thread switching times and kernel scheduling
events (like missed deadlines)?
You might want to check out Shark in the CHUD tools, if you haven't
already. Specifically the System Trace can give you an interesting
view of threads/kernel scheduling/events. You can also put in your
own "sign posts" to help diagnose issues.
Jim
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