Presentation Font Cache continually using 25% of my CPU

Dave Hooton

I wondered what was chewing up battery time one morning, so I paid close attention this time and found a process called PresentationFontCache.exe was taking 25% CPU time on my i5.  I killed it in Task Manager but it returned as soon as I started L4 again. It's a WPF process associated with Logos 4 and the advice to cure it was found at http://answers.microsoft.com/en-us/windows/forum/windows_7-performance/presentationfontcacheexe-uses-50-of-my-cpu/4200fe85-458f-4f19-b791-1fe5395304da

(or just Google with the exe name).

Rich DeRuiter

Dave Hooton said:

I wondered what was chewing up battery time one morning, so I paid close attention this time and found a process called PresentationFontCache.exe was taking 25% CPU time on my i5.  I killed it in Task Manager but it returned as soon as I started L4 again. It's a WPF process associated with Logos 4 and the advice to cure it was found at http://answers.microsoft.com/en-us/windows/forum/windows_7-performance/presentationfontcacheexe-uses-50-of-my-cpu/4200fe85-458f-4f19-b791-1fe5395304da

(or just Google with the exe name).

There seems to be more than one solution listed there (2nd solution on 2nd page).

Was your solution to delete the font*.dat files in C:\Windows\ServiceProfiles\LocalService\AppData\Local\ and reboot the computer? Or did you set the priority to Below Normal or Low?

Did you notice any speed improvements with L4 itself after your change?

Dave Hooton

https://community.logos.com/discussion/comment/316700#Comment_316700

Richard DeRuiter said:

Was your solution to delete the font*.dat files in C:\Windows\ServiceProfiles\LocalService\AppData\Local\ and reboot the computer?

Did the first part but restarted the Windows Presentation font... Service rather than reboot.

Richard DeRuiter said:

Did you notice any speed improvements with L4 itself after your change?

No. The exe is currently using 0% CPU so my battery life has more than doubled (back to normal).

DMB

https://community.logos.com/discussion/comment/316708#Comment_316708

I checked mine but he's quiet.

My bad boy is Wmiprvse.exe. Searching the web, angry people say turn him off (services) but MS says don't. I tried it and nothing happened but decided to turn him back on.

I run full power with 12 cells and last maybe 10-12 hours or so (Lenovo x220t i7).