Date: Mon, 9 Feb 2015 12:25:40 +0000 From: Glen Barber <gjb@FreeBSD.org> To: Rui Paulo <rpaulo@FreeBSD.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r278433 - in head: . contrib/xz contrib/xz/src/common contrib/xz/src/liblzma contrib/xz/src/liblzma/api contrib/xz/src/liblzma/api/lzma contrib/xz/src/liblzma/check contrib/xz/src/liblz... Message-ID: <20150209122540.GE84467@hub.FreeBSD.org> In-Reply-To: <201502090620.t196KZSk040702@svn.freebsd.org> References: <201502090620.t196KZSk040702@svn.freebsd.org>
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--3Gf/FFewwPeBMqCJ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Feb 09, 2015 at 06:20:35AM +0000, Rui Paulo wrote: > Author: rpaulo > Date: Mon Feb 9 06:20:34 2015 > New Revision: 278433 > URL: https://svnweb.freebsd.org/changeset/base/278433 >=20 > Log: > Merge xz 5.2.0. > =20 > This brings support for multi-threaded compression. This brings close > N times faster compression where N is the number of CPU cores. > Because of this, liblzma now depends on libthr. > =20 This is fantastic, thank you for doing this update. FWIW, compressing VM images (some sparse files, some not) would take upwards of 45 minutes, which after this update, just takes a few minutes. root@releng2:/R2/vmimages # time xz -T 0 -k FreeBSD-11.0-CURRENT-amd64.qco= w2 \ time xz -T 0 -k FreeBSD-11.0-CURRENT-amd64.raw; \ time xz -T 0 -k FreeBSD-11.0-CURRENT-amd64.vhd; \ time xz -T 0 -k FreeBSD-11.0-CURRENT-amd64.vmdk 1027.602u 40.376s 1:09.57 1535.1% 81+192k 0+19774io 0pf+0w 1032.978u 38.823s 1:08.17 1572.2% 81+192k 0+19696io 0pf+0w 1033.908u 38.593s 1:11.70 1495.8% 81+192k 0+19729io 0pf+0w 1091.749u 42.371s 1:04.27 1764.6% 81+192k 0+19751io 0pf+0w Glen --3Gf/FFewwPeBMqCJ Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJU2KdEAAoJEAMUWKVHj+KTUtEP+wcJ6xOcamqEv2Ye/pIN/5oo yrnBI73D1/84IsPzEfeCANwcgbXyuNC/KXWWo9kQCD8RNEWUBrsWGIqZc4QGALe3 JG+kL86EZlXwYd10/BLfajVOn7RhqET8WUKd9Q2Ns6r3j30UlEqgQZvQ4DVu1s2C hburyqn/SzUk6mLTVwjXqvxef8GKuVReLj2FLWV19hIkcfgZJnJGKXvbCj7n4o2V ZtfHglrKibxDs3ISbNcdh9LVqXvTP4mQQZHYFWG3LJKLhUz6JpJuZNHFe4ZfqVNT 0H681M/n81iVMDYDeRqHi3PKiVL5/9U3C+c7QVSrqWlj+TyZHP73XW9I35p/4glf 0ESriI4EhuPQrsuIu1ihX6wIdkfH16ggJnyUEY1kUhgr7GvqdawXu9IqfVkWC6YU 6FkUfsOwvlzvLAYhWR30uoHLPaQ+xCFRrY1Szz8hbc0kPXTwuPOOeQ8aUF6GeoCq q/sbnY2wvdE7zy7aieQnXlvAtNDDnQzckE96CSdPfqhX9QNKKOx6UK6fCrlIMKfy mB5SVdKjYJmC/4kyrKjEnKonU3u+5HCxR31rlesvNRZomaU5NsIMu5v3zjV6URAs JvU4sB/sEnxHNZ5P2PPNh5JEs8+e/kIcCY02B96Ax5+8XQ3EjQKPVFk1ygUyxJ/o vydxMj0KgLzh+WGQWOpo =CrXP -----END PGP SIGNATURE----- --3Gf/FFewwPeBMqCJ--
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