Plex Music Analyser maxing out M1 CPU

Server Version#: 1.25.0.5220
Player Version#: 1.37.0.2706.5b2cfe50

When the Music Analyser is running, it uses 99.9 (3 entries all running at 99.9%) of the CPU on my M1 Mac mini using macOS Monterey. Anyone have any ideas?

That sounds about right. It’s a CPU-intensive process which can take a while to complete. Plex avoids using all of the CPU cores for music analysis.

Is something not behaving as expected?

Thanks for the reply. The Plex is very hard to use when it is running. Slows downl to a crawl if I try to edit something or go into settings. I have a Mac mini M1 running both Monterey and Big Sur in seperate partitions just in case there were problems with Monterey. I found this on my system " QtWebEngineProcess" which was using 100% of the CPU which I force quit the process, but I can’t find the app it is associated with, but the app is still very slow when the agent is running on both operating systems.

I think that appears when running the Plex client app.

That CPU has 4 fast cores and 4 “efficiency” cores. Some of the new Intel CPUs are divided like that too. I wonder if Plex should adjust how many cores are used by Music Analysis on those big.LITTLE-style systems.

I don’t think Rosetta 2 is relevant here, but I also wonder if this is something that will improve when Plex goes native.

Thanks for the info, I appreciate it.

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