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Date:      Mon, 3 Aug 2009 12:17:48 +0200
From:      Invernizzi Fabrizio <fabrizio.invernizzi@telecomitalia.it>
To:        =?iso-8859-1?Q?Istv=E1n?= <leccine@gmail.com>
Cc:        "freebsd-performance@freebsd.org" <freebsd-performance@freebsd.org>, Stefan Lambrev <stefan.lambrev@moneybookers.com>
Subject:   RE: Test on 10GBE Intel based network card
Message-ID:  <36A93B31228D3B49B691AD31652BCAE9A4560DF961@GRFMBX702BA020.griffon.local>
In-Reply-To: <b8592ed80908030301u453b4bd9yc111bd28339e609d@mail.gmail.com>
References:  <36A93B31228D3B49B691AD31652BCAE9A4560DF911@GRFMBX702BA020.griffon.local> <0E567C7E-4EAA-4B89-9A8D-FD0450D32ED7@moneybookers.com> <36A93B31228D3B49B691AD31652BCAE9A4560DF947@GRFMBX702BA020.griffon.local> <b8592ed80908030301u453b4bd9yc111bd28339e609d@mail.gmail.com>

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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: Istv=E1n [mailto:leccine@gmail.com]
Sent: luned=EC 3 agosto 2009 12.02
To: Invernizzi Fabrizio
Cc: Stefan Lambrev; freebsd-performance@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/fre=
ebsd-performance@freebsd.org/msg02293.html

Actually I am not aware of the changes in 7.2 or what could be the best val=
ue 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@t=
elecomitalia.it> wrote:
Hi


> -----Original Message-----
> From: Stefan Lambrev [mailto:stefan.lambrev@moneybookers.com]
> Sent: luned=EC 3 agosto 2009 11.22
> To: Invernizzi Fabrizio
> Cc: freebsd-performance@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 t=
he 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 th=
e (let me say) worst scenario.


> > _______________________________________________
> > freebsd-performance@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-performance
> > To unsubscribe, send any mail to "freebsd-performance-
> unsubscribe@freebsd.org
> > "
>
> --
> Best Wishes,
> Stefan Lambrev
> ICQ# 24134177
>
>
>
>


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--
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Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle per=
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