How Apple silicon CPUs control core frequencies and power use when running in Low Power mode. Includes M4 Pro and M3 Pro data, and estimates of energy requirements.
Category Archive: Macs
How snapshots are created from a volume in around 0.01 second, why they will grow in size over time, how they can only be of complete volumes, and can’t be edited.
I hope that you enjoyed Saturday’s Mac Riddles, episode 289. Here are my solutions to them. 1: The […]
Apple refers to Energy Modes and Power Modes, and despite older MacBook Pro models offering Low Power mode, tells us that isn’t what Low Power mode is now. Here are the observations and explanations.
It’s September 2016. Apple has just released the iPhone 7, with its first big.LITTLE CPU cores, then 4 days later macOS 10.12 Sierra. How does it transition from there to release the M1 in four years?
Here are this weekend’s Mac riddles to entertain you through family time, shopping and recreation. 1: The most […]
The Motorola 68000 CPU had no floating point instructions, so Apple introduced SANE, then went on to the PowerPC Velocity Engine, and its Accelerate framework, and more.
Scans used to take just a few minutes, but even on a fast M4 Pro now usually take more than half an hour. What is XProtect Remediator up to?
Frameworks provide much of the macOS API. Over the last 5 years, the percentage of Private Frameworks has risen from 76% to 84%. Why is macOS becoming more private?
How the number of bundles in /System/Library has risen from Mojave to Sequoia, and why the last 5 years have been so different from the previous 20.
The Eclectic Light Company 