iMovie High CPU Usage

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Level 2

236 points

iMovie High CPU Usage

Hi all,

(2020 intel, 4 port, 13 inch MBP, 16 GB RAM, 1 TB SSD) (Catalina 10.15.7)

I was in an iMovie editing session and then I noticed the fans kick up on my MacBook. Funnily enough, I wasn't doing anything at the time, just skimming through the timeline. I checked Activity monitor and it said iMovie was using 500% of the CPU (or however its properly phrased) and that was odd, I checked energy and it had an energy impact of 450 compared to like 12 or less for the other 2 apps that I had open). I closed iMovie and it stopped but does anyone know why this is happening?

I have attached a screenshot below of the activity monitor:

Thanks in Advance,

-Percival876

MacBook Pro with Touch Bar

Posted on Dec 18, 2020 2:52 AM

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Answer 1

Top-ranking reply

Rich839

Level 8

47,688 points

Dec 18, 2020 7:51 AM in response to Percival876

Hi, Percival1876,

Sometimes the System Management Controller gets out of whack and needs resetting. Try the following procedures and see if that solves your issue:

Resetting

the System Management Controller

Try resetting the System Managemen Controller. It is an easy procedure to do. See the following link.

https://support.apple.com/en-us/HT201295

Resetting the NVRAM or PRAM

Try resetting the NVRAM or PRAM. It is easy to do.

https://support.apple.com/en-us/HT204063

-- Rich

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