[ros-dev] MP/UP HAL issues

[Love Nystrom]

>
> ---------- Forwarded message ----------
> From: Timo Kreuzer <timo.kreuzer at web.de>\
>
[abbreviated]

>
> I'm against wasting precious compile time for an MP hal that doesn't even
> work. And I would actually like to have the kernel being compiled the same
> way. I bet the performance improvements of inlining some spinlock code are
> really neglectable.
>

I hate being a spoilsport, especially on an issue that may have gone stale
already,
but *compile time* is not even 10% as important as *run time*.
I dunno about the particulars in this case, it's just a general priority
opinion.

To me, performance is *everything* ..
I gladly spend a *week* to gain significant performance,
especially if it also makes the code clearer and more readable!

Is it just I who think that software is getting slower and slower and bigger
and bigger these days?
And I mean particularly the goo gaa that comes out of Redmond these days :-/
But as everybody in the world seems to play "Follow John" with Microsoft,
users are left with software where they have to go for a coffe break after
giving a command
before their multicore superduper computers even give a burp, because
programmers
care less about runtime than compile time these days :(
Blame the RAD frenzy for that!

I'd even go as far as dropping UP support completely and hotpatching
> spinlock functions.
>

Dropping single core processor support sound like a bad idea to me.

W.B.R.
// Love
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