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

[Eli Zaretskii]

> From: Dmitry Gutov <address@hidden>
> Date: Sat, 4 Apr 2020 20:36:03 +0300
> Cc: address@hidden, address@hidden, address@hidden,
>  address@hidden
> 
> Now, with an -Og build, here are outputs of several consecutive runs:
> 
> Elapsed time: 0.912808s (0.125516s in 7 GCs)
> Elapsed time: 0.772653s (0.077285s in 4 GCs)
> Elapsed time: 0.769371s (0.076361s in 4 GCs)
> Elapsed time: 0.776261s (0.077395s in 4 GCs)
> [...]
> In an optimized build, it's always < 0.2s here.

So we are looking at -O2 being about 3 to 5 times faster than -Og,
right?  That's a speedup that is more than I'd expect, but still
nowhere near an order of magnitude that Alan's timings seemed to show.