I largely agree. The other thing that happened is that phones got faster: it just doesn't matter as much anymore. A slow disk cache is fine, but if it does anyt

I largely agree. The other thing that happened is that phones got faster: it just doesn't matter as much anymore. A slow disk cache is fine, but if it does anything on the main thread: straight to jail. The article is about memory efficiency, though! In order to get equivalent memory behavior the buffers would need to be marked as purgeable (from the article) so that kernel can empty the cache if needed. Not sure if any of these libraries do that. The main situation where cache speed is tested is app launch: load every image for the current viewport simultaneously. It can take some time if your images are slow to decode.