On 10/3/07, Claudio Jeker <[EMAIL PROTECTED]> wrote:
>
> On Tue, Oct 02, 2007 at 08:46:43PM +0100, Tony Sarendal wrote:
> > On 9/27/07, Tony Sarendal <[EMAIL PROTECTED]> wrote:
> > >
> > > On 9/27/07, Claudio Jeker <[EMAIL PROTECTED]> wrote:
>
> ...
>
> >
> > I hooked up the X4100 to one of our testers and ran some basic tests
> just to
> > get
> > familiar with the tester.
> >
> > I put up the results of the first run of tests on
> > http://www.layer17.net/openbsd-router-intro.html
> >
> > All opinions are welcome, please be gentle.
> >
> > I hope to be able to test the 1k vlan interface firewall setup later,
> > I just need to baseline a bit first.
> >
>
> Quite interesting numbers. I guess that em(4) does still to many pci
> read/write accesses and so 64byte packet storms are mostly limited by the
> PCI bus access delay. My gut feeling is that the TX path is causing the
> slow down (enqueing happens on a per packet basis and that is porbably not
> optimal for current high speed cards).
> Could you add the dmesg of the test box to the website?
> Do you have any other network cards you could test? (I'm mostly interested
> in bnx but sk, msk, bge and nfe could be interesting as well).


I'll put up the dmesg when I'm in the office again.
The nfe port I do management over has jammed, a little bios tweaking
might fix that.

The only cards I have access to at the moment are the builtins,
2xem and 2xnfe.

The packet drops of 64 byte frames in the throughput/latency test is a bit
confusing, I can't see that behaviour if I slowly ramp up from 1kpps.
Before I do tests with more advanced config I want the basic ones to give
a result I understand so I'll try to figure that one out.

/Tony

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