Re: em forwarding performance (was Proposed 6.2 em RELEASE patch

On Sat, Nov 25, 2006 at 09:36:05AM +0100 I heard the voice of
Divacky Roman, and lo! it spake thus:

hm.. now I am confused. the rule is that having I586_CPU improves
performance because optimized bzero/bcopy is included (its not
included if you only have I686_CPU).

Haven't we been by this before? It's not included even if you have
I586_CPU either.

See src/sys/i386/isa/npx.c, line 432:

#ifdef I586_CPU_XXX <--------
^^^

This has been disabled since r1.95, in 2001 (in 5-CURRENT days).
There may be SOMETHING about including I586_CPU that speeds things up,
but it ain't that.



--
Matthew Fuller (MF4839) | fullermd@xxxxxxxxxxxxxxx
Systems/Network Administrator | http://www.over-yonder.net/~fullermd/
On the Internet, nobody can hear you scream.
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