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> The biggest thing that doesn't run properly on here is Emacs. I am able to get a version of it via Rosetta, however there are weird hangs that will randomly e

by derefr 6y ago

> The biggest thing that doesn't run properly on here is Emacs. I am able to get a version of it via Rosetta, however there are weird hangs that will randomly eat up all my input while I am in flow. This is undesirable to say the least. This sounds a lot like the kind of stutter Dolphin's dynamic recompiler used to suffer when it first discovered a new shader. IIRC, for faster boot times, Emacs binaries burn in some kind of low-level memory-image that gets dumped into an mmap region and then "revivified." I wonder if that's what Rosetta is choking on. If so, I wonder whether, until an actual AArch64 build is available, it'd be possible to work around this problem by just rebuilding Emacs (for x86!) without that optimization enabled.

jagger27 6y ago
Seems like the Homebrew version already builds on M1. People have been working on this since last year. https://amitp.blogspot.com/2020/11/building-emacs-27-on-apple-arm-m1.html?m=1 https://amitp.blogspot.com/2020/11/building-emacs-27-on-appl...
Iwan-Zotow 6y ago
> for faster boot times, Emacs binaries burn in some kind of low-level memory-image that gets dumped into an mmap region and then "revivified." unexec hack No true anymore for Emacs 27.x, they go with more portables (though a bit slower) preload
- derefr 6y ago
  Thank you! I was so confused because I didn't remember the name, and there was no documentation about it I could find without the name (probably because it's out-of-date info now.)
mkskm 6y ago
I'm successfully running Emacs natively on M1 using the Yamamoto fork. It just needs to be installed via the formula on Homebrew currently rather than the cask. https://github.com/railwaycat/homebrew-emacsmacport/issues/230 https://github.com/railwaycat/homebrew-emacsmacport/issues/2... Haven't run any benchmarks yet, but general usage is snappier and startup time is around twice as fast as a gccemacs build running on a 2020 Intel MBA.

by derefr 6y ago

jagger27 6y ago

Seems like the Homebrew version already builds on M1. People have been working on this since last year. https://amitp.blogspot.com/2020/11/building-emacs-27-on-apple-arm-m1.html?m=1 https://amitp.blogspot.com/2020/11/building-emacs-27-on-appl...

Iwan-Zotow 6y ago

> for faster boot times, Emacs binaries burn in some kind of low-level memory-image that gets dumped into an mmap region and then "revivified." unexec hack No true anymore for Emacs 27.x, they go with more portables (though a bit slower) preload

derefr 6y ago
Thank you! I was so confused because I didn't remember the name, and there was no documentation about it I could find without the name (probably because it's out-of-date info now.)

mkskm 6y ago

I'm successfully running Emacs natively on M1 using the Yamamoto fork. It just needs to be installed via the formula on Homebrew currently rather than the cask. https://github.com/railwaycat/homebrew-emacsmacport/issues/230 https://github.com/railwaycat/homebrew-emacsmacport/issues/2... Haven't run any benchmarks yet, but general usage is snappier and startup time is around twice as fast as a gccemacs build running on a 2020 Intel MBA.