What you can learn from browsing the log, and why it’s so important in diagnosis and troubleshooting, research into macOS, and measuring performance. With a worked example.
log
An introduction to the Unified log used on Macs and Apple’s devices. Its goals, how logs are stored and maintained, their content, privacy protection, and tools available to access them.
Which type of CPU cores are most active during Visual Look Up? How their frequencies and active residencies change? How demanding is it?
Using powermetrics and log entries, a single image was processed on an M4 Pro, with content analysis and object recognition and look-up. How much power and energy did that use?
Explains the sequence of events from Boot ROM to FileVault login, what storage is accessible at different times, and where the code is.
How to check your Mac is booting in Full Security, and how to read its log to verify all the key steps involved in that process.
How to discover which apps were launched, which appexes were run, and life cycle events for executable bundles, and map waypoints and events in the log.
A meta-search for Apple’s patents on search, and turning the incessant log chatter of RunningBoard to our advantage in following uninstrumented apps.
How a close reading of the assertions acquired by RunningBoard can tell you a great deal about the life cycle of an app.
These updates feature overhauled windows, new app icons for compatibility with Tahoe, and have been rebuilt. LogUI gets a minor tweak that should improve its window controls in Tahoe.
The Eclectic Light Company 