Date: Fri, 19 Nov 1999 23:11:20 +0300 From: "Oleg V. Volkov" <rover@lglobus.ru> To: Matthias Buelow <mkb@altair.mayn.de> Cc: freebsd-questions@freebsd.org Subject: Re: Is there correct way for program to read from itself? Message-ID: <19991119231120.A69591@fly.lglobus.ru> In-Reply-To: <19991119201806.A442@altair.mayn.de> References: <19991118223426.A62913@fly.lglobus.ru> <19991118152324.37840@mojave.sitaranetworks.com> <19991118232846.A63288@fly.lglobus.ru> <19991118154736.22915@mojave.sitaranetworks.com> <19991119002759.B63288@fly.lglobus.ru> <19991118172315.02758@mojave.sitaranetworks.com> <19991119012822.A63914@fly.lglobus.ru> <19991119111026.11577@mojave.sitaranetworks.com> <19991119220338.B68540@fly.lglobus.ru> <19991119201806.A442@altair.mayn.de>
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On Fri, Nov 19, 1999 at 08:18:06PM +0100, Matthias Buelow wrote: > Oleg V. Volkov wrote: > >Did you hear of executable compressor named "UPX"? Recently version was > >made for Linux, and i wish to help author with enough info to make it > >work under FreeBSD without recompiling it. Soon, when they release 1.0 with > >sources this problems will go away by themselves. > Executable compressor? I thought DOS with tiny floppies was dead? :) > I don't think such a thing is useful; if it works at all, if would > dynamically generate the actual executable segments (code, data, bss > and whatever is hiding in today's elf stuff) defeating the system's > cache mechanisms for sharing code pages among multiple running > processes of the same executable image etc. which might especially > be critical since you probably want to compress very large object > files. Other disadvantages might come into action. > I don't think it makes sense at all generally in the days of very > cheap multi-gigabyte disks and object files contribute only marginally > to a typical filesystem fillage (mp3 files collections being much more > space hungry on many personal systems). Yeah, this mainly aimed at big things that have only few instances running (emacs for example :P). BTW do not forget about bandwidth downloading 8mb and 1,5 mb makes difference on 64k not to mention worse connections. -- Oleg V. Volkov aka Rover EH: LCM Rover Join Elite Imperial Fleet! http://www.emperorshammer.org E-mail redirector: sr-13@mail.ru (always up) -=/ SR 13 /=- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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