From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maxim Cournoyer Subject: Re: Ready for Guile 2.2! Date: Fri, 21 Apr 2017 00:21:07 +0900 Message-ID: <87y3uvf6l8.fsf@gmail.com> References: <87bmt28qnm.fsf@gnu.org> <87lgs65l3c.fsf@gnu.org> <87r30nz275.fsf@gnu.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha256; protocol="application/pgp-signature" Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:45958) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d1DtQ-00069X-1h for guix-devel@gnu.org; Thu, 20 Apr 2017 11:21:12 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d1DtP-0007dr-1n for guix-devel@gnu.org; Thu, 20 Apr 2017 11:21:12 -0400 In-Reply-To: (Andy Wingo's message of "Thu, 20 Apr 2017 15:10:11 +0200") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: "Guix-devel" To: Andy Wingo Cc: guix-devel --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Andy Wingo writes: > On Thu 20 Apr 2017 14:35, ludo@gnu.org (Ludovic Court=C3=A8s) writes: > >> ludo@gnu.org (Ludovic Court=C3=A8s) skribis: >> >>> ;; 2.724686s real time, 3.117062s run time. 0.880827s spent in GC. >>> scheme@(guile-user)> (version) >>> $1 =3D "2.0.13" >>> >> scheme@(guile-user)> ,use(guix scripts build) >> scheme@(guile-user)> ,time (guix-build "libreoffice" "certbot" "xmonad" = "-n" "--no-substitutes" "--no-build-hook") >> >> [...] >> >> ;; 1.826528s real time, 1.994426s run time. 0.382750s spent in GC. >> scheme@(guile-user)> (version) >> $1 =3D "2.2.1" >> >> That=E2=80=99s a 33% speedup compared to 2.0. > > That is a 50% speedup compared to 2.0 :) If we consider its speed as > being how many times you could do this per second, then 2.0 speed is > 1/2.72, and 2.2.1 speed is 1/1.82. Speed ratio is then > 2.72/1.82=3D1.4945. So 2.2.1 is 1.5x the speed of 2.0, or 50% faster :) > > Andy, who is not looking for praise, but who likes perf numbers :) Impressive :). Is there a blog post/article/information somewhere about what went in Guile to make it that faster? Thank you for your work! Maxim --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEJ9WGpPiQCFQyn/CfEmDkZILmNWIFAlj40eMACgkQEmDkZILm NWJfhg//bpaaIr/ob3jhQBjb7bXdnAmeV+hIDVYekPUi+SM4JY0Uw+C9ajD0qYO/ 1d/28SGVtBxH39f+AgZ/1LsY/WY/V+amA9xwqvDHioM9IEvHHNKj00Z9WD7dl6JL 8DltZcrGeH2cXuFs3Qo6VMNwfPOK6fVqb4Cj4c2znCRoBR8xa7UmnicMPX7X574Z Zmxi/140u6t2XHI+9g4G5Lc+J80o+rq51gsiokCCN/e8oYDeRSENttHrIv6uLAxx mS4HLsI+fh6ynHngpSSq+svgleifO6GdjZFSG4Oj6Km3W2uE5dSzsitqqFuA5vBL GV6iueAR2WGv8x/exwzXCYLbEX6Qa1IvcwviIag91bVKYPxn7X6snrJZk6D1Kk7S vAVshL6syhjGPQHtvSwRqqJuqjZegwNBB+SJcOha4MMDqWz98AtTw/PACg4Nli0B LBaD3+SPlNxc7uY/K7ZlN16usC9JaHvVkP0BGabr8JIU3bfU9idxKki9Zd9fe7i+ iTDqWCNxPrAO5qZdNMb1eD5T6JY3L3xslmKbyZy46GS/NMRwRgCTXj+0mgxTQFkd JDFOAtuQHt0IyciVTKP6nXpAGrxYo/a/zpKPSKC1MT4q9LpL8I/hUgMjE7nJw+4z QCiVTkSj7ttpf8QUFhpGlPf92AP9UFGBI8/YGmvdDADSjBoZRIA= =uZGJ -----END PGP SIGNATURE----- --=-=-=--