How to put your Mac into Safe mode, what Apple claims it does, and what evidence there is of its benefits. Includes an assessment of free space it may create.
cache
You’re running out of free space, so check in Storage settings to see where it has all gone. System Data has reached 50 GB, but what is that, and what should you do to reduce it?
Caching to disk improves performance, but cached data are optional and may be purged when additional free space is needed. This explains how that’s performed by the deleted service.
Claimed to block 3rd-party extensions and customisations from loading, check the startup disk, and to clear some system caches. When and why should you use it?
Speed up your hard disk by partitioning it so that its innermost 20% remains unused. Reserve space for the SLC write cache on an SSD by limiting the size of volumes.
Covering thermal throttling, extended coverage of SLC write cache depletion and how long it takes to empty the cache, Trimming, and more.
It turns out that the Finder is just retaining all those image thumbnails in its memory for 2-3 days after you last browsed them. Is this what we want?
What does Safe mode do to all those service caches managed by CacheDelete? Does it still check your boot disk too?
Performed by CacheDelete, it first looks at a wide range of macOS caches, and only at the end purges snapshots, to free up space when it runs short.
They’re everywhere: whatever you do, something somewhere will cache it. Later that can cause puzzling problems, but makes our Macs faster as a result.
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