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Re: Why Linux on SGI

To: linux-mips
Subject: Re: Why Linux on SGI
From: Ralf Baechle <ralf@Julia.DE>
Date: Fri, 11 Apr 1997 00:01:54 +0200 (MET DST)
Just to have a statement in this thread from a person ...


> From: (Ariel Faigon)
> Message-Id: <>
> Subject: Re: Why Linux on SGI
> Date: Thu, 10 Apr 1997 10:58:03 -0700 (PDT)
> Reply-To: ariel@relay.engr.SGI.COM (Ariel Faigon)


> Miguel's answer is excellent. For the non-SGI'ers on the list
> I just would like to add:
> 1) IRIX has many features that important customers require
>    (e.g. trusted IRIX capabilities, real time scheduling
>     and many more) that actually make it slower than Linux
>    (in general). As a vendor SGI is committed to support
>    these features from low end to high end for a long time
>    to come. IRIX is big. Linux is smaller and faster.
>    Once we have Linux running and we'll start running simple
>    benchmarks you'll see this very clearly. Another big feature
>    for our customers is XFS. Linux doesn't support a safe file
>    system, IRIX does (try to turn off your Linux box and you
>    lost a lot of stuff, unlike on IRIX with XFS.

(Tell me ...)

> 2) IRIX needs to run on machines that are incredibly different:
>    from uniprocessors through SMP (which Linux is now getting at)
>    to the S2MP model (no shared bus: Origin family) every feature
>    added to support S2MP (the Origin line) may potentially complicate
>    and slow down the uP desktop case. SGI customers demand
>    one source base. They want to compile on O2 and run on Origin.
>    Linux is just starting to get a feel for how complex is SMP
>    vs. uP so it'll naturally run great on a uP but wouldn't be
>    able to take advantage of the most scalable architecture of
>    the Origins. As we've learned this requires rewriting large
>    parts of your kernel from scratch. Which is why SGI is doing
>    Cellular IRIX
> 3) IRIX runs only on SGIs and to get upgrades you need to
>    pay for support. Linux runs on many platforms. It is free
>    The common source base gives it a great advantage for people
>    who have mixed envs. It is affordable and ideal for hackers.
>    it has a big and fast growing following.
> 4) IRIX has no chance of beating M$oft. Linux doesn't either
>    but it has a bit more. Just kidding.
> The guy who said "SGI has hundreds of highly paid engineers
> tuning IRIX to run fast on MIPS" simply misses the issues.
> They are much more complex than that.
> Both Linux and IRIX have their place. Each of them is good
> at different things. People should have a choice between SGI
> taking care of all their needs and the alternative to have
> full control of their software.
> Linux on SGI should prosper.
> -- 
> Peace, Ariel

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