bug#31138: Native json slower than json.el

[Dmitry Gutov]

On 22.04.2019 15:12, Eli Zaretskii wrote:

> Try using 'true' as the last argument of make_specified_string.

Thank you. Tried it, tests now pass, and the performance improvement is 
the same. I compared the same benchmark (100 iterations, GC disabled for 
the whole duration), and this patch takes

src/emacs -Q --batch -l ~/examples/elisp/json-test.el
Elapsed time: 51.153870s

down to

$ src/emacs -Q --batch -l ~/examples/elisp/json-test.el
Elapsed time: 26.268435s

Are you still against it? (Just checking).