User profile for user: 2Legit35
2Legit35 Author
User level: Level 1
4 points

identityservicesd hogging 100% CPU after updating MacOS from Sequioa 15.2.4 to Sequoia 15.4

MacBook Pro specs:

Processor: 2.6GHz 6-core Intel i7

Memory: 16GB 2667 MHz DDR4


I recently updated from Sequoia 15.2.3 to Sequoia 15.4. And after the update, my computer's fans were running very high and my computer was hot. I checked the Activity Monitor and noticed the "identityservicesd" service was hogging the CPU, taking almost 100% of the CPU (screenshot attached). I'm not sure how to fix it, and this didn't affect me until AFTER updating to Sequoia 15.4.


I went through the fixes that I could find such as:

  1. Disabling login items
  2. tried holding shift button before logging in
  3. restarting and turning off my laptop multiple times
  4. turned the wifi on and off
  5. sign out and sign back in


I even ran an etrecheck report on my laptop which reported that the "identityservicesd.app" had high CPU usage and that the app was using high energy. Any help would be appreciated! I also read that re-syncing iCloud could fix this, but I'm not sure how to do that.


Thank you in advance for any help!

MacBook Pro (2017 – 2020)

Posted on Apr 6, 2025 9:50 PM

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4 replies
User profile for user: 2Legit35
2Legit35 Author
User level: Level 1
4 points

Apr 7, 2025 2:27 PM in response to Owl-53

Thank you for the response!


To answer your question, it's iCloud that is doing the syncing in the "Contacts" application. I signed out and signed back into my Apple ID and today it seems the "identityservicesd" service has gone down to normal-ish CPU resources. But now the "apsd" service is hogging quite a bit of CPU (screenshot below).


Also my iCloud storage is full and has prevented syncing since it's full. Do you think that might be a problem here?

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User profile for user: Owl-53
Owl-53
User level: Level 10
103,369 points

Apr 8, 2025 1:48 AM in response to 2Legit35

Hum, apsd seem rather high


Again from Activity Monitor >> Open Files and ports


It maybe possible that iCloud is full is part of the issue


Is it possible there is a Commercial VPN being used


Asking because there is reference to Time Zone , Messages , Apple Push Services , user-packet-pool


I could be wrong so this is a best guess





/System/Library/PrivateFrameworks/ApplePushService.framework/apsd


Open Files and Ports 


/Library/Preferences/Logging/.plist-cache.Wv8HAVXa


/private/var/db/mds/messages/se_SecurityMessages


/private/var/db/timezone/tz/2025a.1.0/icutz/icutz44l.dat


/private/var/root/Library/Group Containers/group.com.apple.apsd/ApplePushService/aps.db-shm


/usr/lib/dyld


/private/var/db/analyticsd/events.allowlist


/System/Library/CoreServices/SystemVersion.bundle/English.lproj/SystemVersion.strings


/System/Library/Frameworks/CFNetwork.framework/Versions/A/Resources/DafsaData.bin


/usr/share/icu/icudt76l.dat


/dev/null


/dev/null


/dev/null


->0xf52c45d92172d176


/private/var/root/Library/Group Containers/group.com.apple.apsd/ApplePushService/aps.db


/private/var/root/Library/Group Containers/group.com.apple.apsd/ApplePushService/aps.db-wal


/private/var/root/Library/Group Containers/group.com.apple.apsd/ApplePushService/aps.db-shm


[ctl com.apple.netsrc id 7 unit 6]


48D2C19D-F57A-4DD4-BA73-9F8DA22AAF93[4] user-packet-pool


/private/var/root/Library/Group Containers/group.com.apple.apsd/ApplePushService/aps.db


/Library/Preferences/com.apple.apsd.plist


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identityservicesd hogging 100% CPU after updating MacOS from Sequioa 15.2.4 to Sequoia 15.4

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