Memory Cache

Tue, 17 Mar 2026 00:00:00 +0000

RawCull uses memory and disk caches to keep browsing fast.

Cache Layers

When RawCull needs a thumbnail or preview, it tries these locations in order:

Memory cache
Disk cache
Original source file

If RawCull has to decode from the original file, it stores the result in cache so the next request is faster.

Grid Cache

Grid browsing uses a separate small-thumbnail memory cache. This keeps scrolling responsive without pushing larger preview images out of the main cache too quickly.

Memory Pressure

Fri, 24 Apr 2026 00:00:00 +0000

RawCull watches memory use while you browse large catalogs.

What You See

The Memory tab shows:

Value	Meaning
Total memory	Installed unified memory on your Mac
Used memory	Estimated system memory currently in use
App memory usage	RawCull’s own memory footprint
System memory pressure	Current macOS memory pressure state

RawCull also uses an early warning line at about 85 percent of total memory.

Pressure Levels