MobileRead Forums - View Single Post - calibre6.10：CPU usage is particularly high when converting

Comfy.n · 12-20-2022, 09:13 PM

seems unusual, indeed. see edit

I just did a couple of epub to pdf conversions, while monitoring the main calibre program CPU usage, and the highest it went up to was 13%.

(whereas Qt Web Engine processes combined will go up to more than 50%, as usual since the PDF rendering engine changed... Sometimes I prefer Calibre Portable 3.48, for converting to PDF, for other reasons)

edit: I wasn't using Windows built-in Task Manager to measure Calibre CPU usage. Just now I tried it, and it went up to 60% for a while, during converting, so I guess what you see isn't unusual

12-20-2022, 09:13 PM	#14
Comfy.n want to learn what I want Posts: 1,614 Karma: 7891011 Join Date: Sep 2020 Device: none	seems unusual, indeed. see edit I just did a couple of epub to pdf conversions, while monitoring the main calibre program CPU usage, and the highest it went up to was 13%. (whereas Qt Web Engine processes combined will go up to more than 50%, as usual since the PDF rendering engine changed... Sometimes I prefer Calibre Portable 3.48, for converting to PDF, for other reasons) edit: I wasn't using Windows built-in Task Manager to measure Calibre CPU usage. Just now I tried it, and it went up to 60% for a while, during converting, so I guess what you see isn't unusual Last edited by Comfy.n; 12-20-2022 at 09:21 PM.