Your help was greatly appreciated, thanks Bodireddy. On Mon, Jul 3, 2017 at 10:57 PM, Bodireddy, Bhanuprakash < [email protected]> wrote:
> >>What is your use case(s) ? > >>My usecase might be setup a VBRAS VNF with OVS-DPDK as an NFV normal > >>case, and it requires a good performance, however, OVS-DPDK seems still > >not > >>reach its needs compared with hardware offloading, we are evaluating VPP > >as > >>well, > >As you mentioned VPP here, It's worth looking at the benchmarks that were > >carried comparing > >OvS and VPP for L3-VPN use case by Intel, Ericsson and was presented in > OvS > >Fall conference. > >The slides can be found @ > >http://openvswitch.org/support/ovscon2016/8/1400-gray.pdf. > >In above pdf page 12, why does classifier showed a constant throughput > with > >increasing concurrent L4 flows? shouldn't the performance get degradation > >with more subtable look up as you mentioned. > > You raised a good point. The reason being the 'sorted subtable ranking' > implementation in 2.7 release. > With this we will have the subtable vector sorted by frequency of hits and > this reduces the number of subtable lookups. > That is the reason why I asked for the ' avg. subtable lookups per hit:' > number. > > I recommend watching the video of the presentation here > https://www.youtube.com/watch?v=cxRcfn2x4eE , as the > bottlenecks you are referring in this thread are more or less similar to > ones discussed at the conference. > > - Bhanuprakash. >
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