From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#31138: Native json slower than json.el Date: Mon, 22 Apr 2019 11:01:37 +0300 Message-ID: <837ebm8o4e.fsf@gnu.org> References: <87sh806xwa.fsf@chapu.is> <83r2awnw0w.fsf@gnu.org> <83d0mgnn31.fsf@gnu.org> <835zs7och6.fsf@gnu.org> <83tvfqnbxc.fsf@gnu.org> <83lg12n75s.fsf@gnu.org> <83h8bqn2ik.fsf@gnu.org> <83zhphliil.fsf@gnu.org> <181b93a3-3861-0481-1b95-8344410d1049@yandex.ru> <83r2a2hdxn.fsf@gnu.org> <21f68973-a684-2a65-82eb-c8f3df90127f@yandex.ru> <83d0lmgez2.fsf@gnu.org> <7d503be9-4d85-3d0b-6829-631ad376ba3d@yandex.ru> <831s22gcci.fsf@gnu.org> <83y349gasn.fsf@gnu.org> <83d0lfag4x.fsf@gnu.org> <5cf45a21-65c3-67ee-f123-be83a6ee7c99@yandex.ru> <83a7gjaen6.fsf@gnu.org> <837ebnabkf.fsf@gnu.org> <83zhoj8shg.fsf@gnu.org> <83y34389lg.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: blaine.gmane.org; posting-host="blaine.gmane.org:195.159.176.226"; logging-data="246074"; mail-complaints-to="usenet@blaine.gmane.org" Cc: sebastien@chapu.is, dgutov@yandex.ru, 31138@debbugs.gnu.org To: yyoncho Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Mon Apr 22 10:03:59 2019 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([209.51.188.17]) by blaine.gmane.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hITvi-0011sb-JL for geb-bug-gnu-emacs@m.gmane.org; Mon, 22 Apr 2019 10:03:58 +0200 Original-Received: from localhost ([127.0.0.1]:33922 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hITvh-00048k-9U for geb-bug-gnu-emacs@m.gmane.org; Mon, 22 Apr 2019 04:03:57 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:37465) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hITva-00048U-Hx for bug-gnu-emacs@gnu.org; Mon, 22 Apr 2019 04:03:51 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hITtq-0003GC-JM for bug-gnu-emacs@gnu.org; Mon, 22 Apr 2019 04:02:04 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:36107) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hITtq-0003G1-81 for bug-gnu-emacs@gnu.org; Mon, 22 Apr 2019 04:02:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1hITtq-0002nb-3R for bug-gnu-emacs@gnu.org; Mon, 22 Apr 2019 04:02:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Mon, 22 Apr 2019 08:02:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 31138 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: moreinfo Original-Received: via spool by 31138-submit@debbugs.gnu.org id=B31138.155592011910751 (code B ref 31138); Mon, 22 Apr 2019 08:02:02 +0000 Original-Received: (at 31138) by debbugs.gnu.org; 22 Apr 2019 08:01:59 +0000 Original-Received: from localhost ([127.0.0.1]:49651 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hITtm-0002nL-Ua for submit@debbugs.gnu.org; Mon, 22 Apr 2019 04:01:59 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:51100) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1hITtl-0002n7-Hr for 31138@debbugs.gnu.org; Mon, 22 Apr 2019 04:01:57 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:36880) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hITtd-0003Dz-GK; Mon, 22 Apr 2019 04:01:50 -0400 Original-Received: from [176.228.60.248] (port=3222 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1hITta-00025B-Lj; Mon, 22 Apr 2019 04:01:47 -0400 In-reply-to: (message from yyoncho on Mon, 22 Apr 2019 08:38:58 +0300) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.51.188.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:157990 Archived-At: > From: yyoncho > Date: Mon, 22 Apr 2019 08:38:58 +0300 > Cc: Dmitry Gutov , Sébastien Chapuis , > 31138@debbugs.gnu.org > > read-from-string doesn't decode. You need to time > decode-coding-string when the string is the entire JSON. > > Can you elaborate? Both json-parse-string and read-from-string do the same from my point of view -> > convert string to elisp data structure with read-from-string being 3times faster. Maybe I misunderstood what you were trying to say. If you were suggesting that we implement reading JSON objects as part of Emacs, then yes, this won't need to encode/decode anything. I'm not sure the result will be as fast as read-from-string, since we are talking about a different syntax. Also, I'm not sure how hard would that be nor how much maintenance will it require (does the JSON spec change frequently?). But if someone knows the answers, perhaps it's an alternative worth considering.