High Network Perfomance

[Victor Detoni]

Hi Slawa!

Thanks for the links! That's great links!

about russian, there is no problem... google translate :)


thanks,
Victor

On Sun, Aug 7, 2011 at 9:33 AM, Slawa Olhovchenkov <slw at zxy.spb.ru> wrote:

> On Thu, Aug 04, 2011 at 08:39:17PM -0300, Victor Detoni wrote:
>
> > Hi Guys,
> >
> > I'm trying tunning a FreeBSD 8.2 to high perfomance network with pf. My
> > server configuration is:
> >
> > Dell 1950
> > CPU: Intel(R) Xeon(R) CPU            5130  @ 2.00GHz (1995.03-MHz
> K8-class
> > CPU)
> > 4 x CPU
> > 2 NIC (<Broadcom NetXtreme II BCM5708 1000Base-T)
> > 1 NIC (em0: <Intel(R) PRO/1000 Network Connection 7.1.9>)
> >
> > I want to reach the high processing of packets per second and use pf as
> > synproxy and we still processor to handle others packets or flows.
> >
> > I know that em drivers has MULTI_QUEUE implementation that helps high
> > performance for Intel drivers, but I couldn't see more information about.
> We
> > can reached 500k pps, but no more traffic was processed by this
> interface.
> >
> > I've already enabled net.isr.direct but with Intel Drivers does not work
> and
> > the most processors are in System instead of Interrupts, why? When I
> enable
> > net.isr.direct the processing is balanced for on CPU in system and
> another
> > in interrupt and I reached 1M pps, but the total perfomance is down, the
> > load grow up too fast.
> >
> > I've changed some parameter in sysctl for intel drivers, but it doesn't
> have
> > effect.
> >
> > Someone know what I can do to reach more packets performance? I want to
> use
> > this FreeBSD as a router/firewall only.
>
> FreeBSD (and em) need some tuning for high perfomance.
>
> Next links in russian, sorry.
>
> http://dadv.livejournal.com/138951.html
> http://dadv.livejournal.com/139170.html
> http://dadv.livejournal.com/139366.html
>
> --
> Slawa Olhovchenkov
>