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Update comment about required buffers

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This commit is contained in:
Robin Gareus 2022-05-05 00:46:11 +02:00
parent 2554302281
commit 6c2c3a49c4
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 8 additions and 4 deletions
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10
libs/ardour/globals.cc
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@ -646,9 +646,13 @@ ARDOUR::init (bool try_optimization, const char* localedir, bool with_gui)
*/ */
EventLoop::register_request_buffer_factory (X_("midiUI"), MidiControlUI::request_factory); EventLoop::register_request_buffer_factory (X_("midiUI"), MidiControlUI::request_factory);
/* the + 4 is a bit of a handwave. i don't actually know /* Every Process Graph thread (up to hardware_concurrency) keeps a buffer.
how many more per-thread buffer sets we need above * The main engine callback uses one (but returns it after use
the h/w concurrency, but its definitely > 1 more. * each cycle). Session Export uses one, and the GUI requires
* buffers (for plugin-analysis, auditioner updates) but not
* concurrently.
*
* In theory (hw + 3) should be sufficient, let's add one for luck.
*/ */
BufferManager::init (hardware_concurrency () + 4); BufferManager::init (hardware_concurrency () + 4);