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by cosmic_cheese 260 days ago
Windows doesn't do it any favors, for sure. Running Linux with with every tweak under the sun for better life still leaves a large gap between x86 laptops and MacBooks, however, and while there's probably some low hanging optimization to be taken advantage of there I think the real problem is that x86 CPUs just can't idle as low as M-series can, which is exacerbated by the CPU not being able to finish up its work and reach idle as quickly.
1 comments
vient 260 days ago
I wonder if Windows and Linux just can't yet work on heterogeneous CPUs as well as macOS does. Intel chose an interesting direction here, going straight from one to three kinds of cores in one chip. I almost never see LPE cores being used on Windows, and on Linux you have obscure soft like Intel LPMD which I tried but was not able to notice any battery life improvements.
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cosmic_cheese 260 days ago
I'm a bit out of my depths here, but I believe a significant contributing factor is how early Apple made multi-CPU Macs available, with the earliest being the summer 2000 revision of PowerMac G4 tower (dual 500Mhz PPC G4s), pre-dating the release of OS X. They made it easier for devs to take advantage of those cores in OS X, because this yielded performance boosts that were difficult to match in the x86 world, which was still heavily single-CPU.

Because the OS and apps running on it were already taking advantage of multithreading, making them efficiency core friendly was easy since devs only had to mark already-encapsulated tasks as eligible for running on efficiency cores, so adoption was quick and deep.

Meanwhile on Windows there are still piles of programs that have yet to enter the Core 2 Duo era, let alone advance any further.

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hamburglar 260 days ago
> Apple made multi-CPU Macs available, with the earliest being the summer 2000 revision of PowerMac G4 tower

Earlier. I did some multiprocessing work on an SMP PowerPC Mac in 1997.

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nxobject 260 days ago
Would this have been with MacOS 7’s Multiprocessing Services? I managed to play with an SMP Mac clone (DayStar Genesis MP), but all I really could do in the end is use some plugins for Photoshop.
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hamburglar 260 days ago
That does not ring a bell. I believe it was macOS 8 or 9.
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