bug#31138: Native json slower than json.el

[Dmitry Gutov]

On 16.04.2019 5:38, Eli Zaretskii wrote:

> > So what should we profile? The internals of code_convert_string?
>
> The entire run of parsing a large JSON.  code_convert_string will be
> part of the profile.

All right, my test script and results are attached. Here's how I run it:

sudo perf record -F 99 src/emacs -Q --batch -l ~/examples/elisp/json-test.el
sudo perf report -n --stdio > perf-report.txt

If you have certain recording or output format preferences, please let 
me know.

json-test.el
Description: Text Data

perf-report.txt
Description: Text document