From owner-freebsd-current@FreeBSD.ORG Mon Mar 17 09:29:27 2008 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id C90751065671 for ; Mon, 17 Mar 2008 09:29:27 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) by mx1.freebsd.org (Postfix) with ESMTP id 76AF28FC24 for ; Mon, 17 Mar 2008 09:29:27 +0000 (UTC) (envelope-from freebsd-current@m.gmane.org) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1JbBek-0003rG-0b for freebsd-current@freebsd.org; Mon, 17 Mar 2008 09:29:22 +0000 Received: from 195.208.174.178 ([195.208.174.178]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 17 Mar 2008 09:29:22 +0000 Received: from vadim_nuclight by 195.208.174.178 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Mon, 17 Mar 2008 09:29:22 +0000 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-current@freebsd.org From: Vadim Goncharov Date: Mon, 17 Mar 2008 09:29:14 +0000 (UTC) Organization: Nuclear Lightning @ Tomsk, TPU AVTF Hostel Lines: 33 Message-ID: References: <20080315012451.674530f4.ota@j.email.ne.jp> <200803150904.m2F94emj014374@lurza.secnetix.de> X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 195.208.174.178 X-Comment-To: Oliver Fromme User-Agent: slrn/0.9.8.1 (FreeBSD) Sender: news Subject: Re: RELEASE discs & ISO images (for future) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: vadim_nuclight@mail.ru List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Mar 2008 09:29:28 -0000 Hi Oliver Fromme! On Sat, 15 Mar 2008 10:04:40 +0100 (CET); Oliver Fromme wrote about 'Re: RELEASE discs & ISO images (for future)': >>> 224655360 7.0-RELEASE-i386-livefs.iso >>> 94493696 7.0-RELEASE-i386-livefs.iso.uzip (16k cluster) >>> 110188032 7.0-RELEASE-i386-livefs.iso.uzip (2K cluster) >>> >>> So the difference is 124 MB for 16K cluster size, and >>> 109 MB for 2K cluster size (which is noticably faster >>> during access). Actually the space savings will be a >>> bit less, because the /boot directory (about 30 MB) >>> won't be compressed. So the real gain is probably a >>> little less than 100 MB in the 2K case. >> >> By the way, the maxmum cluster size is 127k or 130048 with uzip, >> if you want to maximize the compression ratio. > That would make the live FS painfully slow, and it wouldn't > make a big difference from the default (16K). > It is already noticeably slow with the default cluster size > of 16K on my test machine (a 1 GHz VIA C3), so would rather > prefer to use 2K cluster size, even though compression will > be not quite as good. (2K is the minimum, less than that > doesn't make sense for CD9660 media because the physical > sector size is 2K.) How much is slowdown from 2K to 16K ? I think it's not worth to loose in compression ratio in 16K -> 2K, in opposit to 127K which will really gain nothing, yes. -- WBR, Vadim Goncharov. ICQ#166852181 mailto:vadim_nuclight@mail.ru [Moderator of RU.ANTI-ECOLOGY][FreeBSD][http://antigreen.org][LJ:/nuclight]