On Sat, Oct 11, 2008 at 1:11 PM, David Gerard <dgerard(a)gmail.com> wrote:
2008/10/11 Thomas Dalton
<thomas.dalton(a)gmail.com>om>:
> (maybe a bit clearer comparison if you note
that a shopkeeper can make 2
> deposits a day because of the fast lines. If it wasn't there, the main
queue
> would take 6 hours to get through (it would
get a lot longer, even
though
> the net transaction rate is about the same),
and the shopkeeper would be
> limited to perhaps one transaction a week. As it is, the queue can
easily
> take an hour ;-)
Ok, how about we abandon the use of analogies?
This one is just as
flawed. If the shopkeeper in your example was like our dumps, he could
make 4 deposits a day, 24/6=4. Our dump threads don't need to go and
tend a shop inbetween dumps, they can be in the queue constantly.
I think what we really need here is a bad car analogy. See, the
Internet is like a series of interstate highways going through
tunnels. And when we take a dump of a Wikipedia, it might be an
eighteen-wheeler or it might be a Matchbox car. MySQL is diesel,
Postgres is premium unleaded. And the radio only does AM, but the
music is better. Also, keep your tyre pressures up. I'm sure you can
see where I'm going with this.
- d.
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The only problem with the premium unleaded is that it fails to
power the 18 wheelers. And diesel doesn't help a Matchbox
car either.
Now, if we start talking hydrogen fuel cells, the entire argument
is moot.
-Chad