Hi Tim I just realised you are using ntop (I guess you mean ntopng) for processing traffic, I thought you were running performance tests with PF_RING, please provide a few more info about your configuration: - ntopng version - ntopng configuration - traffic rate (pps and gbps)
Best Regards Alfredo > On 8 Jan 2017, at 23:29, Tim Raphael <[email protected]> wrote: > > Hi All, > > These are our n2membenchmarks: > > user@mon03:~$ sudo n2membenchmark > 43368699.838202 pps/22.204774 Gbps > 42639209.533752 pps/21.831275 Gbps > 42501135.455717 pps/21.760581 Gbps > 43745856.911580 pps/22.397879 Gbps > 35157099.401825 pps/18.000434 Gbps > 32567529.758572 pps/16.674576 Gbps > 43278821.125976 pps/22.158756 Gbps > 42753771.110469 pps/21.889931 Gbps > > This is on bare metal with ~32GB RAM and 12 Cores on a Hex-core with HT > enabled. > > I plan on running ~ 8 Virtual NIC queues to keep 4 cores free - thoughts? > > - Tim > > > >> On 5 Jan 2017, at 10:18 pm, Tim Raphael <[email protected]> wrote: >> >> Thanks Alfredo, >> >> The installed NTop application is currently in a VM however the numademo >> numbers were generated via a live CD (an easy way to test performance >> without flattening the host). >> The R520 has 12 RAM slots, we’re filled the 6 (in triple-channel >> configuration) associated with the filled processor. >> I’ll have a crack at the n2membenchmark tool and let you know. >> >> Cheers, >> >> Tim >> >> >> >> >>> On 5 Jan 2017, at 10:12 pm, Alfredo Cardigliano <[email protected]> >>> wrote: >>> >>> Hi Tim >>> how many RAM slots did you fill in practice? “All” or “all channels”? >>> Please run n2membenchmark, included in the n2disk package, which is our >>> benchmarking tool and let us see some output. >>> Are you running a VM on this R520 or a native OS? >>> >>> Alfredo >>> >>>> On 5 Jan 2017, at 14:37, Tim Raphael <[email protected]> wrote: >>>> >>>> Hi All, >>>> >>>> We have a Dell R520 with a single processor (and one empty slot) and all >>>> the associated RAM slots filled. >>>> numademo shows we can do 14,000MB/s which is apparently a little short of >>>> the 16,000MB/s required for line rate 10Gbit PF_RING NTop analysis. >>>> >>>> Is there anything else we can do with the hardware to up potential >>>> performance? >>>> >>>> We have previously installed NTop with PF_RING on a VM on a dedicated R710 >>>> (dual Proc, 24GB RAM) and could only do 4Gbit/s tops. >>>> In the case of the R520, we don’t have to worry about NUMA allocation as >>>> there is only one CPU, all the correct RAM slots are filled and the PCIe >>>> slot the NIC is using is directly connected to the CPU filled. >>>> >>>> Would it be worth installing NTop on bare metal? >>>> >>>> Regards, >>>> >>>> Tim >>>> >>>> >>>> _______________________________________________ >>>> Ntop mailing list >>>> [email protected] >>>> http://listgateway.unipi.it/mailman/listinfo/ntop >>> >>> _______________________________________________ >>> Ntop mailing list >>> [email protected] >>> http://listgateway.unipi.it/mailman/listinfo/ntop >> > > _______________________________________________ > Ntop mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop _______________________________________________ Ntop mailing list [email protected] http://listgateway.unipi.it/mailman/listinfo/ntop
