bug#31138: Native json slower than json.el

[Dmitry Gutov]

On 23.04.2019 6:06, Alex Gramiak wrote:

> I tried making a couple patches in other areas to json.c that I hoped
> would slightly improve performance, which I'll include here for
> posterity. The first one uses json_dumpb over json_dumps, but from what
> I can tell using it is either slower or just within error. The second
> uses the *_nocheck functions where applicable, but the results seemed to
> be quite similar. I suppose this means that jansson's utf-8 checking is
> performant.

You might also want to try it on larger JSON documents, documents that 
include more numbers, etc.

With a JSON string this small, the benchmark loop might be taking most 
of the runtime.

Anyway, thank you for the try and the benchmarking. At this point I'm 
still hoping for larger gains, and they'll probably come from some 
higher-level changes.