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
