Xcode 13 simulator high CPU Spotlight

Developer Tools & Services Xcode
Hanss OP
Created Jun ’21
Replies 22
Boosts 1
Views 15k
Participants 31

I'm on a MacBook Air M1 with Monterey and XCode 13 beta. On the first night my MBA ran out of battery within three hours. I check cpu usage, and it was Spotlight. Left it running for hours and hours, but Spotlight did not complete it's tasks. Then I noticed in an Activity Monitor sample output that it seemed to have a relation to the Xcode simulator. I quit that, and the cpu utilisation went down.

I can reproduce it. Nothing special, an empty iOS App in an iPhone 12 Pro or mini simulator will cause busy cpu cores with Spotlight.

I recommend not leaving the simulator running when on battery if you have the same issue 😉

Anyone else seeing Spotlight taking up a lot of CPU resources when the Xcode simulator is running?

Replies  22
Boosts  1
Views  15k
Participants  31
bentastico OP
Sep ’21

@ruslan.alikhamov

THANK YOU SOOO MUCH!!!

This did the trick!

My system is affected since update to Xcode 13, Spotlight is running and SourceKitService, too - but now it seems it is over :)

0
lex57ukr OP
Sep ’21

I found a solution in this article very helpful. There are a couple of commands one can execute to fix the problem for both SwiftUI preview and regular simulators.

6
willt42 OP
Oct ’21

I found that the problem seems to arise when I use the iPhone 13 simulator. I cannot confirm if this is the cause, though.

0
mssodhi OP
Nov ’21

Thumbs up to this solution! Attached is an image of cpu charts from a M1 Mabcbook pro running on macOS Monterey. Clear improvement seen after making this change and restarting the simulator.

0
MinhoYi OP
Nov ’21

open Activity Monitor and find the name of your app that never dies open terminal

ps -ef | grep YourAppName

you'll should see 2 lines starting with 3 numbers

kill -9 ThirdNumberOfLine1FromWhatWasFoundAbove
0
miroslav.kovac OP
Nov ’21

Has anyone filed a bug about this? If so, please post your bug number.

0
keinakayama OP
Nov ’21

Same here, on M1 MBA. Xcode 13.1.

0
Xcode 13 simulator high CPU Spotlight
First post date Last post date
 
 
Q