On Tue, Jun 21, 2016 at 05:12:57PM +0200, Peter Lieven wrote: > - We changed the coroutine pool to a per thread model. I disabled the pool. > This seems > to cut the max used RSS to about 150MB which is still a lot more than > qemu-2.2.0
The per-thread coroutine pools only grow when a thread creates/destroys coroutines. The QEMU main loop, iothread, and maybe vcpus should use coroutines. The numerous thread-pool worker threads should not use coroutines IIRC. Creating coroutines is expensive and the pools improve performance a lot. Maybe you can make observations about how to manage pool size more efficiently for your VM? Stefan
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