::select() and threads
::select() and threads
- Subject: ::select() and threads
- From: email@hidden
- Date: Tue, 10 Apr 2007 14:05:01 -0700
Hello all ...
I've a question -- under Darwin, is select() used to determine which
threads are ready to run? Shark is reporting that our app spends
most of its' time in select(), but the callstack that represents the
majority of select() calls isn't our select() loop, it's something else:
ml_set_interrupts_enabled
thread_block_reason
thread_block
uiomove
selprocess
select
... which makes me think that the kernel is using select() to
determine when threads are ready. This makes some sense, as our app
is very multithreaded. If this is the case, how can I get our
(possibly too) multithreaded app to be kinder to the CPU under OSX?
Regards,
John
Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com
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