How "real time" is FreeBSD?
backyard
backyard1454-bsd at yahoo.com
Thu Sep 21 08:21:21 PDT 2006
--- RW <list-freebsd-2004 at morbius.sent.com> wrote:
> On Thursday 21 September 2006 06:12, Walt Pawley
> wrote:
> > At 11:47 PM -0500 9/20/06, W. D. wrote:
> > >Just reading this about Linux on ZDNet and was
> wondering:
> >
>
><http://news.zdnet.com/2100-9593_22-6117479.html?part=rss&tag=feed&subj=zd
> > >nn>
> >
> > Cybernetic floobydust, IMHO.
>
> If you read what the banker says: " for each
> thousandth of a second that its
> trading software can act faster than competitors'
> software, the company would
> see $100 million a year in new revenue."
>
and for every extra trade they do they change the
stock price faster and faster making them more money.
They're creating the money by manipulating the market
faster; the market doesn't create itself... How can
they even quantify this so called loss when their
trading is constantly changing the state of the
market.
> It seems to me that they are really misunderstanding
> the problem. What they
> need is a system that's fast most of the time,
> rather than one that meets an
> arbitary deadline all the time. In other words they
> need a fast system, not a
> realtime system.
>
I would imagine an extra 100 million would buy quite a
dusy of a system at that... processing data at a rate
of 1000 Hz doesn't seem to suggest a real-time system
is required when the average clock is 1 million times
faster then that. its not like they're doing FFT's on
a Radar signal, to determine if its a bogey and arming
the appropriate countermeasures so they can be
deployed the second the blip appears on the operators
screen.
-brian
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