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From: pmh@ardbeg.islay.sub.org (Patrick M. Hausen)
Newsgroups: comp.unix.bsd.netbsd.misc,comp.os.linux.development.system,comp.os.linux.setup
Subject: Re: Linux or BSD?
Date: 16 Apr 1996 18:09:17 +0200
Organization: Patrick M. Hausen - private site
Lines: 52
Message-ID: <pmh.829670337@ardbeg.islay.sub.org>
References: <4jprsf$lo9@classic.eng.octel.com> <4kcofg$55p@onramp.arc.nasa.gov> <4kv8oj$em@hobyah.cc.uq.oz.au>
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robert@I_should_put_my_domain_in_etc_NNTP_INEWS_DOMAIN (Robert Brockway) writes:
>: >Some of the features I'm looking for
>: > - multiple ethernet cards (PCI bus prefered)
>: So long as each card can havge its own IRQ, or you have a multiport card,
>Multiport cards are to do with serial ports, not etherent cards. Unless the
>h/w supports it, each ethernet card requires its own IRQ - it is a good idea
>to do it at all times if possible anyway.
Wrong. Since the day of EISA (at least) there are cards with multiple
ethernet connectors (to be used simultaneously, of course), and with
the advent of PCI and PCI-to-PCI bridges these are even becoming rather
cheap. The Znyx 314 or 344, for example, each feature 4 ports.
Don't know if they're supported by any free Unix.
>: Linux will support it. Major support is for the 3com cards. Drivers can be
>Many, many ethernet cards are supported, including NE2000 which means all we
>poor students can get supported cards too :-)
Yep, but NE2000 is definitely the last thing you want to have in an NFS
server or even in a busy client. Go for some DEC chipset based card
like the ones by Znyx, or, of course, by DEC ;-)
Since FreeBSD supports them _really_ well for quite a time now, I assume
the other free OSes will do just as well.
>: multithread CPU demands. Some apps can take 95% or more CPU time, slowing or
>: halting those of lower priority, and I've lost data packets while ftp'ing and
>: running as little as four other apps (not counting daemons or init).
>That is more likely to be a product of having a 16450 uart chip than anything
>in s/w. Get a 16550a buffer chip. Read the serial howto for other possible
>causes.
May I mention, that FreeBSD does _especially_ well in the area of SIO drivers?
Not to start another "my OS is better than yours" war - I usually recommend
the "try, what most of your friends run" approach (well, Windoze doesn't
count here ;-)
Good Luck
Paddy
P.S. There is some code concerning PCI2PCI bridges in FreeBSD 2.1R - does
anybody know if multiport ethernet adaptors work?
--
Patrick M. Hausen Gerwigstr. 11 76131 Karlsruhe pmh@islay.sub.org
"Responsibility, n. A detachable burden easily shifted to the shoulders
of God, Fate or Fortune, Luck, or one's neighbor" -- Ambrose Bierce