A few points. and questions:
What's your CPU and OS?
[...]
Do you use CPU groups? Which version of Windows? You said you affine the process seperately and that
causes problems. That could be related to CPU groups if the process is in a different group from the miner
threads.
Tested on Intel(R) Xeon CPU E5-266O v4 @ 2.OOGHz CPUs, on Windows Servr 2016.
I do not use CPU groups (not sure what those are: will look into that) and I tested with 20 CPUs. [EDIT: I checked and CPU groups are applicable to machines with more than 64 CPUs so I only have one group here]
I open a command prompt and prior to launching cpuminer-opt I set the command prompt's affinity to the one desired (set to 20 CPUs). The miner then runs with the desired processors already affined. v3.9.1.1 now complains that it can't affine to all CPUs (obviously, because I removed some from the parent process). I'm supposing that's just a benign warning and nothing will really change. You probably made the miner explicitely affine to all CPUs by default on startup hence the warnings.
Yescrypt performance:
There were no changes to the yescrypt code. I added yespower and tinkered with using that code for
yescrypt without success so I left yescrypt as is. If you are aware of a better performing miner
please point me to it and I'll have a look.
Argh, I'm sorry. I meant
yespowerR16 instead of yescryptR16 in my last item! And I was referring to bellflower2015's fork of your miner (you can easily find it on github).
Thanks!