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Exactly - Apple hardware is designed for its software, and vice versa. They get battery gains across the stack. I remember when the M1 Macs first came out, an
by apozem 1y ago
Exactly - Apple hardware is designed for its software, and vice versa. They get battery gains across the stack.
I remember when the M1 Macs first came out, an Apple engineer revealed they'd optimized the hardware so one specific low-level operation macOS does all the time was 5x faster than on Intel [0].
[0]: https://daringfireball.net/2020/11/the_m1_macs https://daringfireball.net/2020/11/the_m1_macs
- AceJohnny2 1y ago> Apple hardware is designed for its software, and vice versa Sometimes I find it hard to believe that Apple Silicon implements 2 different togglable memory models, just so that Rosetta can better emulate x86 https://www.sra.uni-hannover.de/Publications/2024/wrenger_24_jsa.pdf https://www.sra.uni-hannover.de/Publications/2024/wrenger_24...
- simonask 1y agoIt’s not even a particularly obscure low-level operation: atomic add. Every computer in the world performs that exact instruction a huge number of times running normal, non-Apple software. The key insight is the kind of “vertical integration” providing the kind of feedback loop to spot the opportunity.