Rosetta 2 is key feature for the transition to Apple silicon, and is also available to run Intel x86_64 binaries in virtual macOS and Linux (in Ventura).
Internally, it isn’t called Rosetta, but OAH. Although itself tiny, its demands on memory and CPU can be great. Details of how and what it does, and more.
A short introduction to some of the highlights and quirks of M1 Macs, from dealing with apps which don’t run properly, to entering Recovery Mode and dealing with disaster.
Time has changed in M1 Macs, with the Mach clock ticking every 41.67 nanoseconds. This affects all log entries too, and works differently in Rosetta.
If you were to strip unwanted code from a Universal App, would it still pass Big Sur’s strict security checks?
Identical code using system_profiler to look up the firmware version number worked in two apps but failed in a third. The solution was obscure.
Now offers you the choice of automatically downloading and installing pending updates, or just downloading them for manual installation.
Now shows the space taken on disk, which makes it easy to identify sparse files.
Makes it easy to write, harvest and analyse Signposts in the log to measure performance. Important fix for Apple Silicon too.
Explore UTIs, MIME and file types, extensions, and more. Now runs native on Intel and Apple Silicon Macs.