Issue with Core Simulator Cache Consuming Disk Space

Question

Created Jul ’24

Replies 2

Boosts 1

Participants 3

I recently ran out of disk space and discovered that my System Data was consuming 866 GB of storage. After investigating, I found multiple directories named "Dead" nested within my developer data, consuming nearly 600 GB of storage.

An example path is: /Users/<usr>/Library/Developer/CoreSimulator/Devices/<device-id>/data/Library/Caches/com.apple.containermanagerd/Dead

These directories contained multiple directories titled "temp.<id>".

Rebooting the computer did not empty these "Dead" directories; I had to manually delete them.

What is the expected lifespan of the temporary directories stored in the "Dead" directory?

Boost

Answer 1

DTS Engineer OP

Apple

Jul ’24

From Installing and managing Simulator runtimes > Install and manage Simulator runtimes in settings:

Choose Xcode > Settings > Components to see a list of Simulator runtimes that are currently installed and available for download. Xcode shows the amount of storage you can recover if you remove an installed Simulator runtime. To recover storage space from unused Simulator runtimes, select a Simulator runtime, click the Delete button (-) in the lower-left corner, and click Delete in the confirmation dialog.

0

Answer 2

JZarzuela OP

Aug ’24

I ran into the same issue. The simulator creates a new "temp" folder there for each execution. Quite soon it got to 60GB, so I have to be deleting and recreating the simulators.

This has to be a bug!... Throwing away the simulators periodically is just a bad workarround.

1