From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-2.8 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RCVD_IN_SORBS_SPAM, RP_MATCHES_RCVD shortcircuit=no autolearn=no autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 4FF1E20966 for ; Sat, 1 Apr 2017 08:55:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751334AbdDAIze (ORCPT ); Sat, 1 Apr 2017 04:55:34 -0400 Received: from mail-io0-f181.google.com ([209.85.223.181]:34698 "EHLO mail-io0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750950AbdDAIzd (ORCPT ); Sat, 1 Apr 2017 04:55:33 -0400 Received: by mail-io0-f181.google.com with SMTP id b140so52358504iof.1 for ; Sat, 01 Apr 2017 01:55:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=g3Lvfu+OZPjhM7u6I1kn+/xVKzZXe/HdH+Bos2ViQ0Q=; b=gXc28ha9xIGam534Kj4UO0VhCRwPyNHJdzojcNELukocEy2HmY+hfz5vB5h2t6j/QJ 9JWSrdh6z0uyvu9CKQngsXqhVP67P43XBMuLQVk3YiNUo1CX65ar9mH2uPPqe0BQtKL7 ksFwOuIvQc8+jkOJlgKC/CowIVmg3OYrtbE6WyHmG3f7sneNH+Gv7nkdUHJpFOwgDQLx F2fTpgOGMNOo8fc7OsiVjL/5+f0nWiFbGZMkmu6SB3MQwzCVmXTxifz3iemzXFHjGo60 WouAM9/lAyTrG9AQRvshHr8VCK9+anXx7w3JcydUdbbzDi8KpAm+MVHHVlzF72J+3jVf BSPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=g3Lvfu+OZPjhM7u6I1kn+/xVKzZXe/HdH+Bos2ViQ0Q=; b=ZVanjinHEtQCqrsCIA5ClDVBK8pPFqD+GYyeJeLGePduaemnlAsneK+EoqP8N5aQJp 3QKY44rFKaZRoWf7iimJL77i7IHhxkK+8DM0oDKZ86GynoFOP+u1Pt89YibqPvGULesF fwZ9avUUyvsDW+Sr2pWI0rAK8GCTQj5Gd4T1nftTqSOWzuD3wg8iQ4oyoQs4iEDKQdy9 lAQfbxuk128nte26srIG9EH2yDDUyBEyqE6B6tX4wqqvIqGuPSog8n3C1cSodeqYJ6+O idE1D4Zbmytt+tap2USD7DL0O1mUNXNmgxXr7ImroPLgJ8SJP/f56559eHnT4yhPmpd9 vXvg== X-Gm-Message-State: AFeK/H2ccgTocSXBEdYLlliOts6BbOXPJB3lL2/N1b0/i7VIN7PpHc2/Dc8lnJ17OUyc0xZcAfs2Fp0Mx314Lg== X-Received: by 10.107.32.199 with SMTP id g190mr8435962iog.117.1491036932298; Sat, 01 Apr 2017 01:55:32 -0700 (PDT) MIME-Version: 1.0 Received: by 10.107.130.208 with HTTP; Sat, 1 Apr 2017 01:55:11 -0700 (PDT) In-Reply-To: References: From: =?UTF-8?B?w4Z2YXIgQXJuZmrDtnLDsCBCamFybWFzb24=?= Date: Sat, 1 Apr 2017 10:55:11 +0200 Message-ID: Subject: Re: Very promising results with libpcre2 To: Junio C Hamano Cc: Git Mailing List , Jeff King , Jeffrey Walton Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On Sat, Apr 1, 2017 at 12:48 AM, Junio C Hamano wrote: > =C3=86var Arnfj=C3=B6r=C3=B0 Bjarmason writes: > >> That enables the new JIT support in pcre v2: >> >> s/iter rx fixed prx >> rx 2.19 -- -33% -44% >> fixed 1.47 49% -- -17% >> prx 1.22 79% 20% -- > > The numbers with JIT does look "interesting". > > I couldn't quite tell if there are major incompatibilities in the > regex language itself between two versions from their documentation, > but assuming that there isn't (modulo bugfixes and enhancements) and > assuming that we are going to use their standard matcher, it may be > OK to just use the newer one without linking both. There's no incompatibilities in the regex language itself (modulo bugs etc). So yeah, I'll prepare some patch to use v2.