Invernizzi Fabrizio wrote:
Hi
-----Original Message-----
From: Stefan Lambrev [mailto:stefan.lamb...@moneybookers.com]
Sent: lunedì 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 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?
ah that's the whole point of tuning :-)
there are severalpossibities:
1/ the card's interrupts are probably attache dto aonly 1 cpu,
so that cpu can do no more work
2/ if more than 1 cpu is working, it may be that there is a lock in
heavy contention somewhere.
is the machine still responsive to other networks while
running at maximum capacity on this network? (make sure that
the other networks are on a differnet CPU (hmm I can't remember how to
do that :-).
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@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-performance
To unsubscribe, send any mail to "freebsd-performance-unsubscr...@freebsd.org"
