On Mon, May 27, 2002 at 12:31:59PM +0200, Peter B wrote:
> 
>         Hi!
> 
> I have constructed a small eprom reader (will become burner today). Which 
> connects to a "standard-PC" parallel connector. It consist of 4x LS161, 
> 1xLS244, 1xLS14 + 27C256. The way to control is by sending outb() instructions
> directly to the port (in this case 0x378). It works ok.
> The machine I'm testing it on is a 486DX33 with opti motherboard. Having 8 isa
> slots only. And using NetBSD-1.5/i386.
> 
> The performance I get is 880 bytes/seconds (eprom_dump | dd of=/dev/null).
> Using the exact same setup with FreeBSD-4.5/i386 gives with same program and
> same machine 2017 bytes/seconds. 2.3x factor!
> 
> Should it be like this.. and why is this?

If your kernel config file has DUMMY_NOPS enabled in it, comment it
out and try again.

Jun-Young

-- 
Bang Jun-Young <junyoung@mogua.com>