Hi, thanks for the information! I don't yet use buffers to hold samples, only timing and value patterns that use to gate envelopes etc. I will add samples to the mix at some point though. This means that I have lots of small buffers, for example when I control a synth I make one buffer with a length of 4 and 4 buffers with a length of 1. The creation of a buffer takes about 80 ms, timed with (time (buffer 1)). Thus, these 5 buffers already add up to 400 ms in execution time. I have mitigated this by in parallel creating a large buffer pool of these small buffers of different length during startup. While this adds a bit to the startup time, it otherwise works well until the pre-made buffers start to run out.
I am now using Overtone 0.10.4, so far without any issues.
-Mikael