Just bought a brand new NUC7i5 and installed ROCK a few days ago. Everything was working fine. Out of curiosity I wanted to check a few processing speeds to compare to the processing speeds I was getting from my late 2012 i5 Mac mini running Core. Using NUC+ROCK, upsampling 44.1kHz/16bit WAV files to 176.4/24bit showed a processing speed of 95x to “off the chart” (i.e. > 100x). Which was as expected as the Mac mini displays a processing speed of about 65 - 70x for the same task.
Yesterday, I checked the processing speed again, same task, and it’s running at about 31x. Also, when all was running well a few days ago, I checked DSD64 to PCM conversion and the processing speed was about 20x, and that’s now about 6.5x.
What could have happened to cause the processing speed to drop so dramatically and now significantly worse than my elderly Mac min.
Wondering if one of the NUC’s processor cores had died, I went into the BIOS and switched to 1 core only to see what impact that has on processing speeds, hoping it would drop significantly again, and proving both cores were working as expected. However, not really much difference in processing speeds, oddly, a little higher if anything, but not sure if this is a valid test or not as I understand that DSP is normally dedicated to a single core anyway.
Is there anything I can do in Roon Remote or ROCK, e.g. some form of diagnostic, that would indicate that both processor cores are operating normally? I’m a bit blind trying to get any info directly from ROCK or the NUC. Would the BIOS report an issue if one of the cores was faulty?
Another possibility, maybe there’s some form of simple operating system I can burn to a USB drive that I can boot from that has a CPU performance monitor?
Obviously the reduced processing speeds I’m seeing now are still adequate for what I need and are not causing an actual problem, but it’s bugging me that something may have gone wrong somewhere that can be rectified or there’s a fault with my new NUC.