From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.gentoo.org (smtp.gentoo.org [134.68.220.30]) by robin.gentoo.org (8.13.3/8.13.3) with ESMTP id j2NAGdHl003634 for ; Wed, 23 Mar 2005 10:16:39 GMT Received: from mail.gmx.net ([213.165.64.20]) by smtp.gentoo.org with smtp (Exim 4.43) id 1DE2uk-0006UO-1l for gentoo-dev@robin.gentoo.org; Wed, 23 Mar 2005 10:16:38 +0000 Received: (qmail invoked by alias); 23 Mar 2005 10:16:37 -0000 Received: from unknown (EHLO [192.168.0.20]) [193.170.67.159] by mail.gmx.net (mp015) with SMTP; 23 Mar 2005 11:16:37 +0100 X-Authenticated: #23224156 Message-ID: <42414FCD.10106@gmx.at> Date: Wed, 23 Mar 2005 12:15:25 +0100 From: Fabian Zeindl User-Agent: Mozilla Thunderbird 1.0 (X11/20041206) X-Accept-Language: en-us, en Precedence: bulk List-Post: , , List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@gentoo.org Reply-To: gentoo-dev@gentoo.org MIME-Version: 1.0 To: gentoo-dev@robin.gentoo.org Subject: Re: [gentoo-dev] Proposal for an alternative portage tree sync method References: <200503220715.02669.gentoo-dev@wizy.org> <42401375.5000003@gentoo.org> <200503222358.50671.gentoo-dev@wizy.org> In-Reply-To: <200503222358.50671.gentoo-dev@wizy.org> X-Enigmail-Version: 0.90.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig2C0796D792A4F4E6CAA8E45E" X-Y-GMX-Trusted: 0 X-Archives-Salt: 45084682-bafb-4c06-8c32-11dcb89a1307 X-Archives-Hash: 3e36e2c28e496b7e70d6bc19253acafd This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig2C0796D792A4F4E6CAA8E45E Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit There was a proposal some times ago about replacing the current portage tree with a database which contains packagenames, dependencies etc. but no ebuilds with installation instructions. The ebuild will be downloaded by emerge . I think this would be a more interesting way of accelerating portage and reduce load from the rsync-mirrors... lg fabian Ricardo Correia wrote: > On Tuesday 22 March 2005 12:45, Daniel Drake wrote: > >>So on every sync, you have to download the entire 260mb ISO file? >> >>I don't think our mirrors would be very happy about that. >> >>Daniel >>-- >>gentoo-dev@gentoo.org mailing list > > > You don't seem to have understanded how zsync works. > > Suppose that I, as a user, already have yesterday's portage ISO file. > And suppose that today, there's about 30 new or updated ebuilds. > Also suppose that those ebuilds amount to something like 500 KB. > > In those conditions, if I update my ISO file today using zsync, I would only > have to download the zsync file (which would be about 700 KB) and the > necessary *compressed* ranges of the (compressed) ISO file available on the > mirror. This would be *less* than 500 KB, because of the compression. > > This works because the .zsync file contains a mapping of the uncompressed data > to the compressed data. > > Notice that even if the user doesn't have the ISO file yet, he would only have > to download about 27 MB. > > Personally, I estimate that updates could be faster than a rsync, if not only > because of the whole disk thrashing. But only through experimentation we > would be able to measure the difference. > > Also notice that zsync still has lots of room for improvements, so I wouldn't > be surprised to see it beat rsync in terms of time of an update. > > I think it's worthwhile to setup an experimental mirror, it sure seems much > better than doing emerge-webrsync.. > -- > gentoo-dev@gentoo.org mailing list > > -- Musik kann nicht illegal sein: www.fairsharing.de I prefer signed/encrypted Mail: Fingerprint: CFE8 38A7 0BC4 3CB0 E454 FA8D 04F9 B3B6 E02D 25BA --------------enig2C0796D792A4F4E6CAA8E45E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFCQU/SBPmztuAtJboRAoTqAKC+/i/Z/jueDtOjDGtFHuRlFDyxvACfYh9t Q/xQip3V2n406i9csQXITmY= =GAvG -----END PGP SIGNATURE----- --------------enig2C0796D792A4F4E6CAA8E45E-- -- gentoo-dev@gentoo.org mailing list