Re: Reliable after-change-functions (via: Using incremental parsing in Emacs)

[Eli Zaretskii]

> From: Richard Copley <address@hidden>
> Date: Sat, 4 Apr 2020 18:22:34 +0100
> Cc: Alan Mackenzie <address@hidden>, Andrea Corallo <address@hidden>,
>  Emacs Development <address@hidden>, Dmitry Gutov <address@hidden>
> 
> For my earlier results, I ran the -Og benchmark was in the git
> repository (with .git a directory) and the other three in git
> worktrees (with .git a regular file). I have repeated my tests for the
> -Og case in a git worktree, to match the other three. It didn't make a
> significant difference. I haven't tried it outside of git.
> 
> Amended results below, including time in GC, for two runs each in
> separate instances of "emacs -Q". In all 16 cases there were 8 GCs.
> 
> with sit-for, (benchmark 1 '(progn (find-file "src/xdisp.c") (sit-for 0)))
> -Og 1.340039s (0.149663s), 1.350613s (0.149954s)
> -O2 0.533649s (0.046995s), 0.533949s (0.046714s)
> -O1 0.661679s (0.055181s), 0.664470s (0.057050s)
> -O0 1.079090s (0.168691s), 1.068118s (0.168451s)
> 
> without sit-for, (benchmark 1 '(progn (find-file "src/xdisp.c")))
> -Og 1.293845s (0.150200s), 1.305310s (0.149520s)
> -O2 0.513139s (0.047117s), 0.511230s (0.047143s)
> -O1 0.629743s (0.054738s), 0.629870s (0.056522s)
> -O0 1.027754s (0.165569s), 1.031642s (0.168891s)

Thanks.