[pulseaudio-discuss] data exchange using shared memory

[Deb Briggs]

http://www.kernel.org/doc/ols/2007/ols2007v2-pages-145-150.pdf says that
local clients can exchange audio data with a local PulseAudio daemon
through shared memory IPC - is there any example code that shows this?
Asking because we're seeing quite high CPU usage (30%+) when using
memcpy in the read callback that we install via
pa_stream_set_read_callback.

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