Unfortunately i’m not 100% sure when i detected the CPU-usage issue on my QNAP. But what i know for sure is that ROON, for the past months, is behaving not that responsive as before.
For example : (sometimes, like one’s every 5-6 songs) music (44.1/16, no DSP) is stuttering for 2-3 seconds, (sometimes) tracks are skipping (although that is an other problem as i read in the forum), and in general, all the end-point are not (always) responding as fast as before, when i’m pressing the pause-button for example, the music stops sometimes 4-5 seconds later or not at all.
I did in the meanwhile further investigation and i had the suspicion that i had a (kind of) loop in my virtual network on the NAS (i’m using 5 NIC’s in the NAS itself, 2x1Gbe for my Pfsense VM, 2x10Gbe for all my other VM’s and 1x10Gbe for non VM-applications like ROON).
So i moved my VM-firewall (Pfsense) to an hardware alternative so the virtual network on the NAS is not using that routing anymore. The result is that the CPU-usage is not as high as before.
Of course, on the one hand because the VM-Pfsense isn’t installed anymore on the NAS itself (but Pfsense wasn’t using that much CPU-load anyway) and on the other hand the “risk” of a loop is now eliminated.
In relation to the ROON behaviour the following :
ROON is working more stable now. However i’m not sure ROON-server is now working properly as it should, like i said, it is a 6-core i5-8400T@1.7Ghz.
And that should be an overkill for ROON with only 350 albums, no DSP, and installed on a dedicated NvMe drive (everything wired over 10Gbe).
So now ROON is using no 69%+ anymore but approximately 30-35% of the CPU-load (so sometimes 3.57GHz for doing nothing, see beneeth) BUT still :
- fluctuating every 10 sec. (approximately) between 1-2% and 30-35% and
- Even when i’m not using ROON at all (so now music is playing anywhere and now client is started to connect to the server)
When the above is “normal” behaviour for ROON than hereby the problem is solved, when not i hope the information is usefull for the engineer.
Latest update : Above was when i’m NOT using ROON. Now i’m using ROON (44.1/16 no DSP) via Google cast device and occasionally ROON-service hits 47% CPU-load. Skipping tracks remains and there was one stutter after 20-30min of playing music, that’s when i checked the CPU-load again.