why start_thread consumes so much memory ?

[Nicolas Dufresne]

To answer the question in the subject, start_thread() is the base
function for all your 70 threads. So the result from start_thread()
being the main source of allocation is quite expected. It only means
that most allocation are being done in threads.

Now, to get more useful result from your profiling, I would recommend
you to run it on a Gstreamer build that has debugging symbols. This will
replace the "??? (in /usr/lib64/libgstreamer-0.10.so.0.29.0)" in your
backtraces with specific functions.

best regards,
Nicolas
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