How to work out how many threads and which cores are needed to achieve a compression rate up to 1.7 GB/s, and how to estimate power and energy.
power
Using a test of compressing a 1 GB file with AppleArchive, measurements of power used by core clusters show how efficient using the E cores really is.
How can you tell when software uses the Neural Engine in an M1 series Mac? How much power does it use, and what is Espresso? Mysteries unravelled.
Asymmetric Multiprocessing (AMP) can bring great economy in power and heat production. So why don’t we make better use of it on M1 Macs?
A UPS is essential for Macs without internal batteries, to ensure they can shut down in an orderly fashion when mains power is lost. Here’s how to choose one.
If you power your Mac from a UPS with a USB connection, sleep may not be all it’s supposed to be.
What are the benefits to leaving your Mac running all the time? And the costs? Which should you choose to do?
Apple now has two recall programs for AC wall plug adaptors. Check all your Apple-supplied power adaptors to […]
Which adaptor to use with which laptop Mac. And a detailed directory of macOS features and services around the world.
The cat broke my UPS. Here’s how I chose its replacement, and installed it despite the cat. Why are they sold by so few outlets, though?
The Eclectic Light Company 