For now there are 3 CPUs with all available threads occupied. AMD FX-8350, 8 threads (don't know how to measure the hashrate accurately, but apparently 15-16 khash/s per thread), Ryzen 7 3800X (16 threads, 31.5 khash/s per thread) and Ryzen 7 1700 (16 threads, 20 khash/s on average, when BURST miner does not occupy CPU). So totally I'm at about 952 khash/s. 7.5% of total network hashrate. 

But I repeat, even with single R7 3800X I was getting a few blocks a day. And only after that I have switched my other CPUs to BBP solo.