4 ms·

Perhaps this is about MacOS vs Linux. I'm also suffering from slow emacs on mac, and no combination of flags seems to help. Use case: open a yaml file with syn

Perhaps this is about MacOS vs Linux. I'm also suffering from slow emacs on mac, and no combination of flags seems to help. Use case: open a yaml file with syntax highlightning, scroll it with the mouse. The latency should be as low as possible.

taeric 5y ago
Fwiw, I'm not seeing lag on my end doing the same. Can turn on magit blame and it still scrolls fine. :( Opening a very large file? Edit: I have found that if I don't reboot my Mac, the environment that a launcher emacs finds is sometimes off. Is it the same slow if you launch from a terminal versus the dock?
- darthrupert 5y ago
  No, not very large. I'm using Doom with pretty much default settings. Perhaps there's something heavy there.
  - taeric 5y ago
    I don't think anyone really wants to profile their editor. That said, if you have the cycles to spare, M-x profiler-start, scroll, M-x profiler-stop may have some obvious culprit.
ryukafalz 5y ago
This is my experience as well. I know it can be fast because emacs absolutely screams on my Linux machines, but it's super sluggish on the Mac I have to use for work.
nvarsj 5y ago
It's most likely a Mac thing. And is probably the main reason I gave up on OS X as a serious work OS, since I'm so dependent on Emacs (org-mode in particular). I hope it gets sorted one day. Apparently it has to do with certain system calls on OS X just being very slow.
dpbriggs 5y ago
Emacs on MacOS was also laggy for me before I started using the native comp feature. It takes a while to compile but it's seriously one of the best QoL changes I've had in years.
- pcr910303 5y ago
  Does Emacs native-comp work outside X (i.e. works with the Cocoa port)? I thought it only worked through XQuartz b.c. gcc can’t parse the Objective-C required for the Cocoa port… If the Cocoa port runs well, well that changes everything to me
  - rurban 5y ago
    Yes, it does. I run my macOS nativecomp Emacs on it. Just the UI is not as good as on X. I have my mouse miles more than on X.
chalst 5y ago
I have a very underpowered Macos machine (2010 Mac mini) which faces latency problems with most things. Except Emacs. E.g., Eshell is much snappier for issuing shell commands than bash on iTerm2.
jonnycomputer 5y ago
I don't find emacs especially laggy on mac os.

taeric 5y ago

Fwiw, I'm not seeing lag on my end doing the same. Can turn on magit blame and it still scrolls fine. :( Opening a very large file? Edit: I have found that if I don't reboot my Mac, the environment that a launcher emacs finds is sometimes off. Is it the same slow if you launch from a terminal versus the dock?

darthrupert 5y ago
No, not very large. I'm using Doom with pretty much default settings. Perhaps there's something heavy there.
- taeric 5y ago
  I don't think anyone really wants to profile their editor. That said, if you have the cycles to spare, M-x profiler-start, scroll, M-x profiler-stop may have some obvious culprit.

ryukafalz 5y ago

This is my experience as well. I know it can be fast because emacs absolutely screams on my Linux machines, but it's super sluggish on the Mac I have to use for work.

nvarsj 5y ago

It's most likely a Mac thing. And is probably the main reason I gave up on OS X as a serious work OS, since I'm so dependent on Emacs (org-mode in particular). I hope it gets sorted one day. Apparently it has to do with certain system calls on OS X just being very slow.

dpbriggs 5y ago

Emacs on MacOS was also laggy for me before I started using the native comp feature. It takes a while to compile but it's seriously one of the best QoL changes I've had in years.

pcr910303 5y ago
Does Emacs native-comp work outside X (i.e. works with the Cocoa port)? I thought it only worked through XQuartz b.c. gcc can’t parse the Objective-C required for the Cocoa port… If the Cocoa port runs well, well that changes everything to me
- rurban 5y ago
  Yes, it does. I run my macOS nativecomp Emacs on it. Just the UI is not as good as on X. I have my mouse miles more than on X.

chalst 5y ago

I have a very underpowered Macos machine (2010 Mac mini) which faces latency problems with most things. Except Emacs. E.g., Eshell is much snappier for issuing shell commands than bash on iTerm2.

jonnycomputer 5y ago

I don't find emacs especially laggy on mac os.