'tmp' directory is too big in iOS

Question

I made an app which is 40 MB (very big for me).

But the real surprise is that I found the tmp directory is 300 MB!

And I haven't saved any files in the document yet!

All the files' names in tmp are like:

stack-logs.80127.MyAppName.index
stack-logs.80163.MyAppName.vwnxgi.link
...

What are these things? They occupied an unbelievably 300 MB size!

Is there a way I can clear them periodically? Or is this because I'm debugging my app on my iPhone?

Hornstein

Answer 1

Edit you target scheme, and close Logging → Malloc Stack. Uncheck it.

Journalistic

My app was over 27GB in size and this fixed it, thank you – Malonylurea

Mine grows to 76 GB. That's insane. I almost forgot I checked this option to find memory leaks. – Monson

Answer 2

The NSTemporaryDirectory() function returns a path to the temporary directory for the current user (not just the application's), so these 300 MB are probably files from other applications using the temporary storage.

Birkner

Thanks, so can I just delete the files in my app's tmp directory? – Hornstein

You can, since you have the ownership, but it might cause problems with other apps that share it (cached data, etc.). – Birkner

@alexander on iOS the NSTemporaryDirectory is private to the app so this is from your app. – Crescantia