Test on 10GBE Intel based network card

[István]

Nice, I guess to analyse the bottlenecks you might want to use dtrace....If
it is working with 7.2, I am not sure about that.

Regards,
Istvan

On Mon, Aug 3, 2009 at 11:17 AM, Invernizzi Fabrizio <
fabrizio.invernizzi at telecomitalia.it> wrote:

> HI
>
> These are the sysctl vars you pointed out
>
> kern.ipc.somaxconn: 128
> net.inet.tcp.recvspace: 65536
> net.inet.tcp.sendspace: 32768
> kern.ipc.shmmax: 33554432
> kern.ipc.shmmni: 192
> kern.ipc.shmseg: 128
> kern.ipc.semmni: 10
> net.local.stream.sendspace: 8192
> net.local.stream.recvspace: 8192
> net.inet.tcp.local_slowstart_flightsize: 4
> net.inet.tcp.nolocaltimewait: 0
> net.inet.tcp.hostcache.expire: 3600
>
> kern.maxusers: 384
> kern.ipc.nmbclusters: 65635
> kern.ipc.maxsockets: 65635
> kern.ipc.maxsockbuf: 262144
> net.inet.tcp.tcbhashsize: 512
> net.inet.tcp.hostcache.hashsize: 512
>
>
> Fabrizio
>
> ________________________________________
> From: István [mailto:leccine at gmail.com]
> Sent: lunedì 3 agosto 2009 12.02
> To: Invernizzi Fabrizio
> Cc: Stefan Lambrev; freebsd-performance at freebsd.org
> Subject: Re: Test on 10GBE Intel based network card
>
> what about your sysctls?
>
> I would like to see what have you done yet.
>
> Here is a previous conversation about that:
> http://www.mail-archive.com/freebsd-performance@freebsd.org/msg02293.html
>
> Actually I am not aware of the changes in 7.2 or what could be the best
> value set for you, worth to try to fine tune these.
>
> Regards,
> Istvan
> On Mon, Aug 3, 2009 at 10:53 AM, Invernizzi Fabrizio <
> fabrizio.invernizzi at telecomitalia.it> wrote:
> Hi
>
>
> > -----Original Message-----
> > From: Stefan Lambrev [mailto:stefan.lambrev at moneybookers.com]
> > Sent: lunedì 3 agosto 2009 11.22
> > To: Invernizzi Fabrizio
> > Cc: freebsd-performance at freebsd.org
> > Subject: Re: Test on 10GBE Intel based network card
> >
> > Hi,
> >
> > The limitation that you see is about the max number of packets that
> > FreeBSD can handle - it looks like your best performance is reached at
> > 64 byte packets?
> If you are meaning in term of Packet per second, you are right. These are
> the packet per second measured during tests:
>
> 64 byte:        610119 Pps
> 512 byte:       516917 Pps
> 1492 byte:      464962 Pps
>
>
> > Am I correct that the maximum you can reach is around 639,000 packets
> > per second?
> Yes, as you can see the maximum is 610119 Pps.
> Where does this limit come from?
>
> > Also you are not routing the traffic, but instead the server handles
> > the requests itself and eat CPU to reply?
> Correct. In these first tests I want to "tune" the system, so I am using
> the (let me say) worst scenario.
>
>
> > > _______________________________________________
> > > freebsd-performance at freebsd.org mailing list
> > > http://lists.freebsd.org/mailman/listinfo/freebsd-performance
> > > To unsubscribe, send any mail to "freebsd-performance-
> > unsubscribe at freebsd.org
> > > "
> >
> > --
> > Best Wishes,
> > Stefan Lambrev
> > ICQ# 24134177
> >
> >
> >
> >
>
>
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