[ale] Linux vs XP Embedded

[aaron]

On Tuesday 24 February 2004 15:14, Chris Fowler wrote:
> On Tue, 2004-02-24 at 10:18, Joe Knapka wrote:
> > Chris Fowler <cfowler at outpostsentinel.com> writes:
> > 
> > > I think you need to consider some real time extensions to the linux
> > > kernel. There are a few companies that sell such a product.
> > 
> > I'd really like to use a stock mainline kernel if at all possible.
> > If it's not possible to do that, XP will probably be the default
> > choice (due to powers-that-be issues, not my preference).
> > 
> 
> So if they have to pay for something they would prefer to pay for a
> Microsoft solution?
> 

Indeed... that would make NO sense considering competitively priced and 
demonstrably superior options like the QNX offerings that Bjorn mentioned.

Is it just that the management only knows a couple of buzzwords??  Or is there 
a valid rational for them to skip even the most basic, reasonable front end 
research for this project??

peace
aaron


> > > On Tue, 2004-02-24 at 02:03, Joe Knapka wrote:
> > > > Hi folks,
> > > > 
> > > > I've been given an interesting realtime control system to build, and
> > > > my employer wants to evaluate both Linux (woohoo!) and Windows XP
> > > > Embedded (bummer).  I know some of you have some embedded/realtime
> > > > experience with Linux, so I'd like your opinions on this subject.  I
> > > > can't say much about the application itself, except that it will be
> > > > handling something in the neighborhood of 50Gbytes per day (that's a
> > > > G) of IP and serial traffic, and must meet hard deadlines on the order
> > > > of once per second (but a missed deadline won't kill anyone - this is
> > > > not a medical or aviation application. We can probably even recover
> > > > from a missed deadline, but that sort of thing should be kept to an
> > > > absolute minimum).
> > > > 
> > > > I'm thinking that a 2.6-series kernel would be the way to go with
> > > > this.  I understand 2.6 integrates the preemptive and low-latency
> > > > patches, and that 2.6 can be built in a VM-less configuration so as to
> > > > remove latency associated with demand paging.
> > > > 
> > > > Does anyone have any further suggestions or alternatives?  Also, is
> > > > anyone here in a position to evaluate the relative strengths of Linux
> > > > vs XP Embedded?  Personally I feel that the "Embedded" part of that
> > > > name is probably pure marketing hype, but I could be wrong.  It is 
hard
> > > > to see how Linux could possibly be a *worse* choice then XP in this
> > > > domain, though.
> > > > 
> > > > Thanks,
> > > > 
> > > > -- Joe Knapka
> > > > _______________________________________________
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> > > > Ale at ale.org
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> 
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