Too many threads?
Too many threads?
- Subject: Too many threads?
- From: Rainer Standke <email@hidden>
- Date: Wed, 08 May 2013 15:03:58 -0700
Hello all,
I have an app that's rendering QuickTime movies based on AVFoundation. It's multi-threaded via GCD, and has up 6 renders going at the same time.
I am getting un-explained crashes, or at least I can't explain them. The crashing thread is usually something deep in AVFoundation. I get things like this one: "AVAssetWriterStatusFailed - An unknown error occurred (35) - The operation could not be completed"
When the crashes happen the has something like 2000 threads going, according to Activity Monitor, and all the Free RAM is used up.
As a crutch I have implemented a throttling mechanism that basically waits a number of seconds before starting the next render - but it feels kludgy, and the app can still crash.
My question is, besides properly releasing objects etc, is there any thing I can do to keep the number of threads down, or cause the system to spin down threads that aren't needed any more?
Thanks for any pointers,
Rainer
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