Post #3595707
2026-06-29 19:52 UTC
Something that wasn't obvious to me and which has a huge impact on your developer experience in Xcode 27:
The Device Hub sometimes doesn't kill CoreSimulator processes when you quit the app (not sure if this is a bug or intentional). Given that each device uses several hundred processes, the memory/processing impact is significant.
You'll probably want to keep an eye on how many you have running: use right-click on the simulator in the list to "Shut Down" as necessary.
Replies (1)
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@chockenberry@mastodon.social 2026-06-29 20:12
And while it's not as necessary to kill Simulator processes manually (yay!), I still use this script to keep an eye on _how many_ of them there are: % simkill count https://gist.github.com/chockenberry/e33df6b0f4f201bd161763946158c11c