Hi Moshe please note you can just ignore interrupts with ZC, just make sure you application threads are bound to the correct CPU cores in order to correctly spread the load.
Alfredo > On 2 Nov 2016, at 15:38, Moshe Danielli <[email protected]> wrote: > > I understand... However, can we control the irq / core distribution of flows > as we can with RSS (using smp_affinity)? > > > > > On Nov 2, 2016 15:56, Alfredo Cardigliano wrote: > Hi Moshe > RSS is an IP-based (IP+port for TCP) hw hash, if you need something more > flexibly (e.g. a custom hash function) then you need zbalance_ipc. > > Alfredo > > On 2 Nov 2016, at 14:06, Moshe Danielli <[email protected] > <mailto:[email protected]>> wrote: > > Hi Alfredo, > > 1. You were abosutely right - that was the exact reason. Once I switched to > single queue mode, everything worked as expected. > 2. Given Intel's RSS functionality - what is zbalance_irq doing different ? > Why should I use it instead of making use of RSS ? > Thanks ! > > On Nov 2, 2016 12:03, Alfredo Cardigliano wrote: > Hi Moshe > do you have RSS enabled perhaps? > Please read the documents below: > > https://github.com/ntop/PF_RING/blob/dev/doc/README.RSS > <https://github.com/ntop/PF_RING/blob/dev/doc/README.RSS> > https://github.com/ntop/PF_RING/blob/dev/doc/README.apt_rpm_packages > <https://github.com/ntop/PF_RING/blob/dev/doc/README.apt_rpm_packages> > > Alfredo > > On 2 Nov 2016, at 11:00, Moshe Danielli <[email protected] > <mailto:[email protected]>> wrote: > > Hi Everyone, > I'm experiencing a weird situation where I'm running zcount twice: > 1. zcount -i zc:em1 <zc:em1> > 2. zcount -i em1 > the first execution (zc mode) produces a count value of about 0.5 gbps while > the 2nd execution (non zc mode) produces a value of about 4.5 gbps. > How is that possible ? what am I doing wrong ? > i'm using version 6.4.1-stable with 4096 ring slots and an intel 10g device > (intel ixgbe 82599) on ubuntu 14.04. > Thanks in advance > _______________________________________________ > 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] <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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