Has a core died in my dual-core processor?

[Rugby (aka Daniel or Big Dan)]

The processing speed is relative to a single core’s usage. review : http://kb.roonlabs.com/DSP_Engine

and:

What is the processing speed indication? [Answered]

From the DSP FAQ: Note that Roon currently runs the DSP engine on one CPU core per zone–so this reflects the load relative to consuming a full core. “2.0x” means you’re using 50% of one CPU core to play music in this zone. Currently, I"m playing a local copy of the Mac’s Rumors (24/96) and upsampling to 24/192. I’m getting 32.2x which means, if I am understanding the FAQ correctly, I’m using (100/32.2) = 3.1055 or 3.1% of one of my 8 cores to do the upsampling. Is this correct? If so, the…

So, your processing at 31x is using about 3 percent of one core. Before at 60x is was 1.5% ish. Not sure I’d worry about that minor amount of change. Likewise the change in cpu usage between 20x and 6.5x is roughly 9% for the single core. If you read the 2nd link, you’ll see I’d commented to the Roon dev that it would actually be more useful to display the core usage percentage.

I did not get a good sense if you were comparing the mac mini numbers to the new core in the 20x to 6.5x example, or, was it that your new core last week was 20x and now is 6.5x this week?