From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?utf-8?Q?Gerd_M=C3=B6llmann?= Newsgroups: gmane.emacs.devel Subject: Re: I created a faster JSON parser Date: Tue, 19 Mar 2024 20:13:06 +0100 Message-ID: References: <87a5n96mb5.fsf@gmail.com> <20240309203725.x456m7c6soxtgj6q@nullprogram.com> <86jzmawqbm.fsf@gnu.org> <87ttldydf2.fsf@posteo.net> <867ci8vqvl.fsf@gnu.org> <5396AC95-1D8F-4A89-B4A8-647B717A1E3C@gmail.com> <87r0ggdcki.fsf@gmail.com> <437D901F-CEC6-45E0-8ABE-B036A7B0AAF5@gmail.com> <87cyrv8vka.fsf@gmail.com> <05E839F0-736C-42C0-8344-1C8945E90289@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="15237"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Cc: =?utf-8?Q?Herman=2C_G=C3=A9za?= , Eli Zaretskii , Philip Kaludercic , wellons@nullprogram.com, emacs-devel@gnu.org To: Mattias =?utf-8?Q?Engdeg=C3=A5rd?= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Mar 19 20:14:13 2024 Return-path: Envelope-to: ged-emacs-devel@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1rmeub-0003rq-DV for ged-emacs-devel@m.gmane-mx.org; Tue, 19 Mar 2024 20:14:13 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rmeti-0003Vh-Tf; Tue, 19 Mar 2024 15:13:18 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rmetf-0003VT-TD for emacs-devel@gnu.org; Tue, 19 Mar 2024 15:13:16 -0400 Original-Received: from mail-lf1-x132.google.com ([2a00:1450:4864:20::132]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1rmetd-0003kK-MH; Tue, 19 Mar 2024 15:13:15 -0400 Original-Received: by mail-lf1-x132.google.com with SMTP id 2adb3069b0e04-513da1c1f26so6955895e87.3; Tue, 19 Mar 2024 12:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1710875590; x=1711480390; darn=gnu.org; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=GN+7WsfnB0Ky+9p6yNz9VW+XGBPpnVnoSaE2Fls8sl0=; b=RuAV4i3vc1XMXmk145ouD5gLcq2CN6306J1hBomVqFE2pyqV7I/JzxH8338bja5zJt J3dudF2fN+vTiZDyoHZoqoaezeDGwkrA5aNcspskRikMloJO3SZwT62Sc+J0MqLJ4MvV VhIuPYn7k4S7ykeoFVhxv49NbJ8JohPr1QGEBMYFFhJW35GYaf3YdBx5D0gmj0q2p7Hn uYH+k2kjVDOUQ3+eg3R5nKnj5k+1IDtY1XXyTrmDli/1fOLYxOiO3i/AeoEO9S0ld194 +tsc6IEF3avJjKEvmKnSjQwZKesVCNRaroR13qFr0Nl3liBawSypoBfYyAptFrsxNI8r hBlw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1710875590; x=1711480390; h=content-transfer-encoding:mime-version:user-agent:message-id:date :references:in-reply-to:subject:cc:to:from:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=GN+7WsfnB0Ky+9p6yNz9VW+XGBPpnVnoSaE2Fls8sl0=; b=vDyf4C/Frzmr8AxkTLt2ql6Ie2jzcs+qZ1xpnQwZ6xbxh3XXNNrycGdMElGG5bQn37 33DzMR+2pgSfccBsOjNILsxe5Lr3Z7JKzsSxR4cBSU7IytKHKZlWlVsnH33pZJ3c6gSP sqR89Q3t3GFTe5aZ2bKspObLIZBKhcQXzSR4uzfHIB9+unzSegEXsuErls7TIa+dY6Kb G5MfIB5hRXF6X0UfnMTBinXjEe9h+9tRradNJ4eBEsLnZtChWL2pXvriMYR64o/aytbV wtegQWcnVfIM3LkZsID6esVxy1QxJoQLzT8JpcFHTlvhl3vJ5OFYlygbyc63Bo4h+i44 E9ww== X-Forwarded-Encrypted: i=1; AJvYcCUxuyXMzWq02px6uAxzEsbqFVadrkUi8sxbXFECnXuZrGyBTxhSXNBncs1VbOr3Up/O5mlx4M8VshZcBaouZrUppnlikdnbj/Xejy1xZy6b4BI= X-Gm-Message-State: AOJu0YxZEdM+W8cHh5tWUS+w5q83GTmdGfR5Ln5tc3FiEr53UaX9UL1h zUNynP3aoTi8Uyeh2O8V24RFmpeUyQwOMV916bWs+4gwIfaLevGmPvpnYBEVSVU= X-Google-Smtp-Source: AGHT+IHPOFKd+K3AW4p81ISOhTizzW9KjYuJrxAS9pbA0tZw1eaIEaUeaRBnKpw5YgP2VrT6b22GmA== X-Received: by 2002:a05:6512:3112:b0:513:dc5a:538c with SMTP id n18-20020a056512311200b00513dc5a538cmr7959678lfb.59.1710875589958; Tue, 19 Mar 2024 12:13:09 -0700 (PDT) Original-Received: from Pro.fritz.box (p4fe3a1bc.dip0.t-ipconnect.de. [79.227.161.188]) by smtp.gmail.com with ESMTPSA id ew12-20020a056402538c00b0056b2c5c58d2sm2116271edb.21.2024.03.19.12.13.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Mar 2024 12:13:09 -0700 (PDT) In-Reply-To: <05E839F0-736C-42C0-8344-1C8945E90289@gmail.com> ("Mattias =?utf-8?Q?Engdeg=C3=A5rd=22's?= message of "Tue, 19 Mar 2024 19:49:04 +0100") Received-SPF: pass client-ip=2a00:1450:4864:20::132; envelope-from=gerd.moellmann@gmail.com; helo=mail-lf1-x132.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:317194 Archived-At: Mattias Engdeg=C3=A5rd writes: > 15 mars 2024 kl. 14.35 skrev Herman, G=C3=A9za : > >> I implemented this idea, here is the latest version (now, object_workspa= ce is a Lisp_Object): > > That's considerably slower than before, especially for small inputs, > so it's probably a no-go. Can you give numbers? > > I definitely want to make Gerd's efforts no harder than necessary but > really don't think we should do pay the cost up-front like this. If > required for a better GC then fine, but let's do that work in the > branch for that effort instead of incurring overhead in Emacs now. Please don't take my GC efforts into consideration. That may succeed or not. But this is also a matter of good design, using the stack, (which BTW pdumper does, too), vs. bad design.