I have got it to do 10Mbps now, by ditching the "85Mbps" ethernet over
power adaptors, in favor of a cable.
I get 12Mbps if I run it to the 2.4GHz Pentium 4 xl0 100Mbps port.
No idea what is slowing it down here yet. It should be getting 30Mbps,
like it does on the Mac.
Maybe I should try some of the kernel tuning suggested on calomel.
On Mon, May 21, 2012 at 11:00:22AM -0600, Daniel Melameth wrote:
> On Mon, May 21, 2012 at 9:35 AM, David Diggles <da...@elven.com.au> wrote:
> > I am still getting 300 kilobytes/second download speed with OpenBSD pppoe,
> > however when
> > I plug directly into a Mac and run pppoe on it, 3 megabytes/second.
> >
> > What should I look at for tuning this to get 3MB/s through OpenBSD?
> >
> > Connection: pppoe, over fibre, 30M downlink, 1M uplink
> >
> > The OpenBSD gateway is using the kernel pppoe driver.
> > ...
> > OpenBSD 5.1 (GENERIC) #160: Sun Feb 12 09:46:33 MST 2012
> > ? ?dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
> > cpu0: Geode(TM) Integrated Processor by National Semi ("CyrixInstead"
> > 586-class) 301 MHz
> > cpu0: FPU,TSC,MSR,CX8,CMOV,MMX
> > real mem ?= 132182016 (126MB)
> > avail mem = 119992320 (114MB)
> ...
> > rl0 at pci0 dev 14 function 0 "Realtek 8139" rev 0x10: irq 12, address
> > 00:90:0b:04:bb:f1
> > rlphy0 at rl0 phy 0: RTL internal PHY
> > rl1 at pci0 dev 15 function 0 "Realtek 8139" rev 0x10: irq 10, address
> > 00:90:0b:04:bb:f2
> > rlphy1 at rl1 phy 0: RTL internal PHY
> > rl2 at pci0 dev 16 function 0 "Realtek 8139" rev 0x10: irq 11, address
> > 00:90:0b:04:bb:f3
> > rlphy2 at rl2 phy 0: RTL internal PHY
>
> FWIW, I have 20M/5M VDSL service at home and have zero issue doing
> 20Mbps with OpenBSD as my pppoe-based firewall. That said, while I
> wouldn't expect a 300MHz machine to limit you to 2.4Mbps, it is a bit
> weak--and rl NICs are some of the worst out there. Curiously, when
> doing 2.4Mbps, what does top show for interrupts? For comparison,
> when I'm doing 20Mbps, my interrupts are at 5-6% using em and fxp
> NICs.
