Re: Any tips for tuning NetBSD for NAT?

[Dave Huang <khym%azeotrope.org@localhost>]

On 7/17/2015 1:48 PM, Petar Bogdanovic wrote:
> On Sat, Jul 11, 2015 at 03:03:30PM -0500, Dave Huang wrote:
> > Hi, I have a Soekris net5501 (AMD Geode LX 433MHz, VIA VT6105M Rhine
> > III ethernet) running NetBSD-current from June 2015 and pf as a NAT
> > box. I just upgraded my internet speed to 100Mbps down/10Mbps up, and
> > it seems that the net5501 is a bottleneck. When downloading a large
> > file, I'm getting about 70Mbps, and "systat vm" shows that 99%+ of the
> > CPU is processing interrupts (and user processes are very sluggish
> > too).
> My ALIX (AMD Geode 431.65-MHz, VIA VT6105M Rhine III) runs FreeBSD 8.1
> (build date 2012) with pf+nat+altq (mostly priq on the upstream) and
> during the download of a 4GB dvd I get around 11.0MB/s while the ALIX
> cpu seems to have 15-30% spare time.

Interesting... I tried OpenWrt 15.05-rc3 on the net5501, and it's also
able to get around 11MB/s. CPU usage is about 97% though. So it does
seem like NetBSD could do much better.