1.0's Multithreading on MacOS X

[Nik]

I wonder if there is something amiss with your machine. I expect you saw my experiments here a few months ago:

A multithread performance experiment with Rack v1dev & the 0.6.2c rcomian fork experiment2

I’m sure many of us are interested in how Rack v1 will improve performance. As everyone is by now aware there are two main factors in this, CPU & GPU. Andrew (@vortico) has recently made some changes that affect CPU performance and I was interested to test these. I will hereafter refer to the v1 development commit I have used as v1dev and it was locally compiled on commit 510f7b2179dcffcd8f2fafaae66f7c0070ee6215. Locally compiled v1dev Fundamental modules were used for patching. As you are als…

I have just done a quick and dirty test of that (this is on the same 2015 iMac) with Rack 1.0.

I can only run 14 VCO-1s in that configuration with 1 thread. With 4 threads I can run 30 VCO-1s.

I have the odd tiny glitch, but last time I did the test I shut down every daemon I could on my machine (as discussed in that post - and to my cost - because I forgot to turn Time Machine back on for several weeks!). I am sure I would be glitch free at 14/30 if I did turn everything off.