News for hackers. Stuff that matters.

A comment on Animated GIF uses over 35GB RAM in Acorn on M1 Mac, likely due to memory leak. Parent comment

Re:Animated GIF uses over 35GB RAM in Acorn on M1 Mac, likel... by exikyut on Friday May 21, 2021 @05:18AM (#27231941)
Tangential aside: I wonder if the kernel was running the swapfest on the efficiency cores, and that's what let the system remain so responsive.

See also: https://eclecticlight.co/2021/05/17/how-m1-macs-feel-faster-...

[ Parent | on HN ]
Re:Animated GIF uses over 35GB RAM in Acorn on M1 Mac, likel... by marcan_42 on Friday May 21, 2021 @06:14AM (#27232239)
Swapping isn't CPU-intensive, and Apple also implemented the memory compression as custom CPU instructions. Swapping is I/O intensive, and these machines have stupid fast SSDs which is why they can get away with it.

When you think of swapping as slow it's not because it eats CPU, it's because it blocks on I/O.

[ Parent | on HN ]
Re:Animated GIF uses over 35GB RAM in Acorn on M1 Mac, likel... by supermatt on Friday May 21, 2021 @05:52AM (#27232135)
Its all very interesting. I wish apple would be less tight lipped about how it all works together. Theres so much guesswork because we don't fully understand how the new arch is being utilized.
[ Parent | on HN ]