Quote:
Originally Posted by BetterRed
I can run into the situation where the group includes several of these 'slow' books. The plug-in spawns up to 5 instances of calibre-parallel. When this happens my computer becomes practically unusable for an unacceptable period (my patience ran out after 33 minutes); because 4 of the calibre-parallel processes are EACH consuming 24.n% of a CPU core, totalling ~ 98% of the entire CPU  |
Why they are taking up so much cpu time is immaterial if you want to fix it go to
Preferences - Behavior and
change Job priority from Normal to Low then restart calibre. This will ensure your computer is responsive to you and the calibre-parallel processes will cede to you when you want to do something other than stare at the computer.
Quote:
Originally Posted by BetterRed
 I'll try starting calibre via the start command with the affinity switch set at 2, theoretically that should limit calibre to 2 cores only |
You can also control cpu cores via Preferences - Miscellaneous, but once you change Job priority you should be fine.