Test on 10GBE Intel based network card

[Invernizzi Fabrizio]

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
>
>
>
>


Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle persone indicate. La diffusione, copia o qualsiasi altra azione derivante dalla conoscenza di queste informazioni sono rigorosamente vietate. Qualora abbiate ricevuto questo documento per errore siete cortesemente pregati di darne immediata comunicazione al mittente e di provvedere alla sua distruzione, Grazie.

This e-mail and any attachments is confidential and may contain privileged information intended for the addressee(s) only. Dissemination, copying, printing or use by anybody else is unauthorised. If you are not the intended recipient, please delete this message and any attachments and advise the sender by return e-mail, Thanks.

_______________________________________________
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"



--
the sun shines for all

Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle persone indicate. La diffusione, copia o qualsiasi altra azione derivante dalla conoscenza di queste informazioni sono rigorosamente vietate. Qualora abbiate ricevuto questo documento per errore siete cortesemente pregati di darne immediata comunicazione al mittente e di provvedere alla sua distruzione, Grazie.

This e-mail and any attachments is confidential and may contain privileged information intended for the addressee(s) only. Dissemination, copying, printing or use by anybody else is unauthorised. If you are not the intended recipient, please delete this message and any attachments and advise the sender by return e-mail, Thanks.