Re: The end of embedded Linux?

From: Mark Mielke (mark@mark.mielke.cc)
Date: Mon Oct 07 2002 - 11:53:45 EST

On Mon, Oct 07, 2002 at 09:02:33AM -0700, David S. Miller wrote:
> From: Nicolas Pitre <nico@cam.org>
> Date: Mon, 7 Oct 2002 12:05:16 -0400 (EDT)
> 2) Not inlining inb() and friend reduce the bloat but then you further
> impact performances on CPUs which are generally many order of
> magnitude slower than current desktop machines.
> I don't buy this one. You are saying that the overhead of a procedure
> call is larger than the overhead of going out over the I/O bus to
> touch a device?

I think the key phrase is 'further impact'.

If anything, the procedure call increases latency.

Although... I don't see why CONFIG_TINY wouldn't be able to decide whether
inb() should be inlined or not...

mark 

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