com.apple.ScreenSaver.iLife-Slideshow-Extension using 40+GB space

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Level 1

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com.apple.ScreenSaver.iLife-Slideshow-Extension using 40+GB space

Hi guys

I ran Omni disk sweeper to try and understand where all my macOS storage evaporates to and I found the above folder cache taking up 40GB.

I appreciate that as a cache this will probably purge itself as and when macOS needs space, but I recently couldn't install a 3rd party app because it temporarily needed 60GB to be available, so I had to move a load of my iTunes content to an external hard drive for a few hours, install and then move it back.

The file itself seems to be hidden (i can't locate it through finder) but deleting the cache manually with Omni Disk Sweeper just leads to it recreating itself within an hour or so.

If anyone is interested, this cache appears to be a transcode of all of my HEVC videos taken with iPhone which are transcoded and cached for compatibility. These are the videos that are supposed to save you space...Oh the irony!

Any ideas how to disable it completely?

Thanks

Tom

MacBook Pro 13", macOS 10.14

Posted on Apr 24, 2019 12:26 AM

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Answer 1

léonie

Level 10

202,081 points

Apr 24, 2019 8:13 AM in response to Tom Lindley

I am seeing a similar huge cache in my user library at this path:

~/Library/Containers/com.apple.MediaLibraryService/Data/Library/Caches/com.apple.iLifeMediaBrowser.ILPhotosTranscodeCache/

In this cache are previews for the MediaBrowser for each and every image or video imported from my iPhone, that are using the high efficiency formats HEIC and HVEC.

This cache is probably necessary to be able to share the HEIF files using the Media browser.

The largest files are having a whopping size of 200MB or more.

I hope the next version of MacOS X will have a better support for HEIF media, so we do not need the additional JPEGS and H.264 videos. While HEIF is saving storage in iCloud and the iPhone or iPad, it requires more storage locally on the Mac.

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com.apple.ScreenSaver.iLife-Slideshow-Extension using 40+GB space

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