Re: Intel P6 vs P7 system call performance

Alan Cox
2002-12-17T14:25:13Z

On Tue, 2002-12-17 at 09:45, Andre Hedrick wrote:
>
> Linus,
>
> Are you serious about moving of the banging we currently do on 0x80?
> If so, I have a P4 development board with leds to monitor all the lower io
> ports and can decode for you.

Different thing - int 0x80 syscall not i/o port 80. I've done I/O port
80 (its very easy), but requires we set up some udelay constants with an
initial safety value right at boot (which we should do - we udelay
before it is initialised)