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Newsgroups: comp.unix.bsd.misc Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!news.sprintlink.net!news-peer.sprintlink.net!howland.erols.net!math.ohio-state.edu!jussieu.fr!fdn.fr!r2d2.fdn.org!sphynx.fdn.fr!caussep From: Philippe CAUSSE <caussep@sphynx.fdn.fr> Subject: Re: Linux vs BSD Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: usenet@Sphynx.FDN.fr (Super-User) Nntp-Posting-Host: sphynx.fdn.fr Organization: (individu) Message-ID: <Pine.NEB.3.95.970316102739.709D-100000@sphynx.fdn.fr> References: <32DFFEAB.7704@usa.net> <5dadfr$cnu@web.nmti.com> <n4stf5.tq2.ln@zen> <E6sIEF.1qE@truffula.sj.ca.us> <prlfg5.bs.ln@zen> Mime-Version: 1.0 In-Reply-To: <prlfg5.bs.ln@zen> Date: Sun, 16 Mar 1997 09:34:00 GMT Lines: 63 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.misc:2812 On Sun, 16 Mar 1997, Robert Brockway wrote: > Not my real address (mhall@homecom.com) wrote: > > : I'm not convinced running > : badblocks -w /dev/sda7 100000 > : on an about-to-be-added partition is "really stupid" but it brings Linux > : 2.0.28 to its knees. The system comes back when the command is done, > : but while it's running Linux can't move mail or change consoles or anything. > : Evidently the write buffer cache expands till there's no physical > : memory left for init or shell. Any command that tries to write a file > : all at once that's much bigger than physical memory can do roughly the > : same thing. > > : Does FreeBSD have a similar weakness? It doesn't seem to suffer from this problem... I'm still running FreeBSD-2.1.6 and performing raw device I/O does not lock the system at all. The buffer cache management policy is basically different in BSD-ish systems... > I suspect all Unices would suffer about the same. IO intensive activity, > is IO intensive even regardless of the OS running. Not quite right. It essentially affect SysV based OSes: the same trouble happens under Solaris-2.5 and HP-UX. BSD systems happen to feel less responsive when lightly loaded but behave better under heavy load. > > : My choice of Linux over FreeBSD was an accident: at the time I was giving > : up on SCO I couldn't find any information about FreeBSD while alt.os.linux > : was pretty busy. How many advocates for one or the other will admit their > : choice was similarly arbitrary? Linux has served me well for almost five > > Yep, mine was arbitrary, and was made the night before I went into the > University to d/l the installation floppies. > > : years. I'll bet FreeBSD would have done just as well. Let us not waste > : a minute on "the circular firing squad" when the real enemy is The Dark > : Side of the Force, in Redmond. > > Agreed. FreeBSD wold have served me just as well. > > We must unite against the Evil Empire :-) > Cheers, > -Robert > > --Robert Brockway. email: robert@zen.humbug.org.au (preferred) > unrbrock@dingo.uq.edu.au, s316674@student.uq.edu.au > WWW: http://student.uq.edu.au/~s316674 > Computers: Can't live with them, can't play Quake without them. > > Regards, Philippe. ------------------------------------------------------------------- P. Causse http://www.fdn.fr/~pcausse 4.4BSD/X11R6/Motif-2.0/C++ mailto:caussep@sphynx.fdn.fr (UUCP)