bug#31138: Native json slower than json.el

[Dmitry Gutov]

On 22.04.2019 16:12, Eli Zaretskii wrote:
> They are the same.  The difference is that you visit the file inside
> the benchmark loop, whereas I left only the conversion inside the
> loop.

Interesting. I'll try that out as well sometime.

> AFAIU, doing so produces a better measurement of the JSON
> parsing part alone.

But not a better measurement of how json.c is actually used, I'm afraid 
(unless you're trying to cut out the time Emacs spends reading from 
disk). So even if my benchmark gives more attention to buffer-decoding 
routines, it probably reflects practical usage too (JSON usually comes 
from HTTP response, and it has to be decoded as well).