MobileRead Forums - View Single Post - [Windows] Calibre Appears to Not Run, But Uses 10% of CPU

enuddleyarbl · 12-09-2022, 10:23 AM

I had more fun with whatever's causing this last night. I was getting the issue with the Calibre Editor and hit the Edit button multiple times to see what would happen. It looks like after the first one fails to show up, later instances do show up. But, each one takes about 10% of the CPU. So, by the time I started shutting them down, the various Calibre Editor instances (doing nothing) were using around 50% of my CPU.

I've got Windows Security exclusions on all of Calibre's folders and nothing shows in Protection History. And, since runs after the first one seem to launch correctly, I'm thinking this isn't a Windows Security issue. And, since I first started seeing this before 22H2, I guess it's not that. I guess I'll look into reverting my AMD Chipset Driver to the previous version and see if that might be the problem.

12-09-2022, 10:23 AM	#26
enuddleyarbl Guru Posts: 777 Karma: 1538394 Join Date: Sep 2013 Device: Kobo Forma	I had more fun with whatever's causing this last night. I was getting the issue with the Calibre Editor and hit the Edit button multiple times to see what would happen. It looks like after the first one fails to show up, later instances do show up. But, each one takes about 10% of the CPU. So, by the time I started shutting them down, the various Calibre Editor instances (doing nothing) were using around 50% of my CPU. I've got Windows Security exclusions on all of Calibre's folders and nothing shows in Protection History. And, since runs after the first one seem to launch correctly, I'm thinking this isn't a Windows Security issue. And, since I first started seeing this before 22H2, I guess it's not that. I guess I'll look into reverting my AMD Chipset Driver to the previous version and see if that might be the problem.