Jaime my experience with atom is very bad. Perhaps due to the limited cache, network performance figures are not great. If you want to have decent networking use a Celeron/Core2 but not an atom
Luca On Feb 5, 2010, at 6:55 PM, Jaime Nebrera wrote: > Hi all, > > We are planning to use a cheap dual core Atom box as a nprobe system. > One of the doubts that come to our mind is what card to employ. > > The expensive alternative would be an Intel 82576 based card. We are > aware they have great performance and are able to manage 4 RX and 4 TX > queues. Also they are supported by TNAPI, but I dont know if TNAPI would > be able to employ all its power as the motherboard / CPU might lack > specific stuff (IOAT, DCA, ...) > > The alternative would be a Intel 82574 card. In this case we would > only have 2 RX and 2 TX queues and lack TNAPI support. The advantage, > 100€ less of cost and no leave the PCIE socket free (as the card is > embedded in the motherboard). > > Do you guys have any experience or advice? The CPU comes with just 2 > cores but as Atom supports HT that would be seen as 4, and we could > balance the queues on each of them. Would using a HT "core" improve > performance? Would this box suffice to monitor a 1GE link (dual card, > 1Gbps in and 1Gbps out) Any experience on the number of packets per > second? > > Very thankful in advance. Regards > > -- > Jaime Nebrera - [email protected] > Consultor TI - ENEO Tecnologia SL > Pol. PISA - C/ Manufactura 6, P1, 3B > Mairena del Aljarafe - 41927 - Sevilla > Telf.- 955 60 11 60 / 619 04 55 18 > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc --- If you can not measure it, you can not improve it - Lord Kelvin _______________________________________________ Ntop-misc mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop-misc
