Hi Eli, I am unable to see any difference in the performance of the json parsing in emacs -q and in my setup - it is still ~2 times slower. I believe that it is caused by code_convert_string . I compiled emacs without that call and there is no difference in performance in both setups and the parsing is 2 times faster than emacs -q with code_convert_string. I want to discuss the native json performance in the context of lsp-mode needs. Is it ok to do it in this thread? Thanks, Ivan On Mon, Mar 25, 2019 at 8:25 PM Eli Zaretskii wrote: > > From: yyoncho > > Date: Mon, 25 Mar 2019 20:20:57 +0200 > > Cc: Sébastien Chapuis , > > 31138@debbugs.gnu.org > > > > The patch seems to be addressing the hooks related issue. > > Yes. Do you see improvement in performance? >