Unlimited parallel encoding does not use more than ~25% of each CPU core/thread encoding FLAC encoding

[Jeff Fortin Tam]

This is not a show stopper, just a minor potential performance improvement... as you can see in the attached screenshot where I'm converting a ton of production WAV files to FLAC using SoundConverter 4.0.4 on Fedora 39, even though SoundConverter does not have a parallel jobs limit set in its preferences, it barely uses 20-25% of my CPU, so a job that takes over 10 minutes might have been accomplished in perhaps two to five minutes if it tried to use at least 50 to 100% of each CPU core/thread.

The workaround is simply for users to be patient, but maybe this is a performance issue that would interest you for the "tons of files to convert" scenario.

[sezanzeb (sezanzeb)]

Can't reproduce.

If you set the "Limit number of parallel jobs" to 32, does that change anything for you?

Could a slow storage device be a bottleneck?

[GautierPortet (kassoulet)]

Can't reproduce either, When encoding to flac, all cores are used at 100% here.