Nick, as you using the code currently in SVN or a binary package? We have tested this CPU (very cheap but damn fast) and using pfsend + pfcount on the same box using a 82599 dual port, and we reached almost line rate (9.5 Gbit with 64 bytes packets). The old Atom platform was very bad I believe due to the chipset that was not so great.
Cheers Luca On 02/14/2014 05:54 AM, Nick Bastin wrote: > I've been doing some performance testing with DNA drivers for ixgbe on > various embedded / low-power systems. Everything was going fine until > I got to an Intel C2550-based system (quad core, dual port 10G card > using Intel 82599). I do my normal setup and run: > > $ sudo ./load_dna_driver.sh > irqbalance: no process found > Configuring dna0 > dna0 mask=1 for /proc/irq/62/smp_affinity > Configuring dna1 > dna1 mask=1 for /proc/irq/64/smp_affinity > Configuring dna2 > dna2: ERROR while getting interface flags: No such device > Configuring dna3 > dna3: ERROR while getting interface flags: No such device > > > And then I try to run pfsend on dna0 (this typically works): > > $ sudo ~/PF_RING-5.6.2/userland/examples/pfsend -i dna0 -n 0 > Sending packets on dna0 > ################################################### > # ERROR: You do not seem to have a valid DNA license for dna0 [Intel > 10 Gbit ixgbe 82599-based]. > # We're now working in demo mode with packet capture > # and transmission limited to 5 minutes > ################################################### > Using PF_RING v.5.6.2 > > And it just quits, right there. Syslog has the following (all the > other syslog entries when loading the pf_ring driver, etc., look fine): > > [ 1170.360625] traps: pfsend[8719] trap invalid opcode ip:4072ca > sp:7fffed19ca30 error:0 in pfsend[400000+4e000] > > I've tried installing the modules manually and tweaking the modes and > queues, but nothing makes this problem go away. > > Any ideas? > > -- > Nick > > > _______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc
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