Hi Chandrika are you observing better performance with ixgbe? Please note that ixgbe has a bigger buffer in the card, this could explain better performance in case of high traffic rate (what is the pps rate in this case?)
Alfredo > On 28 Aug 2019, at 12:56, Chandrika Gautam <[email protected]> > wrote: > > Hi Alfredo, > > Interrupts are not seen either with standard driver or with the zc compiled > i40e driver as well. > > What we do in our application is - > We load zc compiled i40e driver and put a zc license on that interface but we > do not open device using zc: prefix. > Using this we have observed better performAnce in our application when used > with ixgbe driver. > > Regards, > Chandrika > > Sent from my iPhone > > On Aug 28, 2019, at 12:58 PM, Alfredo Cardigliano <[email protected] > <mailto:[email protected]>> wrote: > >> Hi Chandrika >> are you using the i40e-zc driver or the standard driver? >> Please note that ZC enables interrupts only when required for performance >> reason, >> for example some libpcap-based applications require interrupts as they use >> poll/select, >> instead many pf_ring-based application do not use interrupts at all (they do >> active polling). >> >> Alfredo >> >>> On 28 Aug 2019, at 08:59, Chandrika Gautam <[email protected] >>> <mailto:[email protected]>> wrote: >>> >>> >>> Hi Team, >>> >>> >>> >>> We have compiled our software with PF_RING 7.5.0 which reads from an >>> interface on i40e driver. >>> >>> Whenever we start our software, it process the traffic received on the >>> interface but no interrupts are seen. >>> >>> Whenever we start tcpdump on the same interface, then interrupts can be >>> seen. >>> >>> Can you please help to validate this behavior. Is it expected behavior ? We >>> need to validate that the interrupts are coming on the cores to which we >>> have set the affnity. >>> >>> >>> >>> >>> >>> Regards, >>> >>> Chandrika >>> >>> _______________________________________________ >>> Ntop-misc mailing list >>> [email protected] <mailto:[email protected]> >>> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >>> <http://listgateway.unipi.it/mailman/listinfo/ntop-misc> >> _______________________________________________ >> Ntop-misc mailing list >> [email protected] <mailto:[email protected]> >> http://listgateway.unipi.it/mailman/listinfo/ntop-misc >> <http://listgateway.unipi.it/mailman/listinfo/ntop-misc>_______________________________________________ > Ntop-misc mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop-misc
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