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Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!news.sprintlink.net!psgrain!rainrgnews0!news.dtr.com!not-for-mail From: bmk@dtr.com (Brant Katkansky) Newsgroups: comp.os.386bsd.questions Subject: Re: Suggestion on recompiling kernel Date: 9 Mar 1995 18:14:39 -0800 Organization: DTR/net - Portland OR (info@dtr.com) Lines: 34 Message-ID: <3jocmf$fja@everest.dtr.com> References: <3jm3eb$dkl@news.bu.edu> <MICHAELV.95Mar8223323@MindBender.HeadCandy.com> NNTP-Posting-Host: dtr.rain.com >In article <MICHAELV.95Mar8223323@MindBender.HeadCandy.com>, >Michael L. VanLoon <michaelv@MindBender.HeadCandy.com> wrote: >>In article <3jm3eb$dkl@news.bu.edu> mi@cs.bu.edu (Mikhail Teterin) writes: >> >> Suggestion that can save hours of rebuilding. After changing your >> config > >*HOURS*??? > >It only takes me 23 minutes to do a *complete* clean build of a kernel >on my NetBSD-1.0 machine: 486DX2/80, 20MB RAM, EISA bus SCSI, etc. I >can't imagine that FreeBSD is THAT much different. A useless data point: The kernel on my gateway takes ~41 minutes to compile after the "config KERNEL". This was done when the system was (reasonably) lightly loaded. This is FreeBSD 2.0-950210-SNAP. The GENERIC kernel compiles only a few minutes faster. # /usr/bin/time sh -c 'make depend; make' [snip] 2449.60 real 1903.47 user 339.71 sys This is on a i486DX2-66, 32MB, Buslogic 445 VLB. The source resides on a fairly slow SCSI disk, but that's probably not a factor. Of course, your machine with it's 80Mhz processor and EISA SCSI is probably a tad faster than mine. I'd say they're not that much different considering the disparity in our hardware. I'd hate to get involved with, much less start, a "my-OS-is-faster-than-your-OS" flamefest. :) -- bmk@dtr.com | Internet / UNIX shell access from $6.00/month - DTR/net | http://www.dtr.com/ or email to info@dtr.com for | more information. Available starting mid-March 1995.