> >I guess the answer is now the general LLC is 2.5M per core so that there is 64k >flows per thread.
AFAIK, the no. of flows here may not have to do anything with LLC. Also there is EMC cache(8k entries) of ~4MB per PMD thread. Yes the performance will be nice with simple test cases (P2P with 1 PMD thread) as most of this fits in to LLC. But in real scenarios OvS-DPDK can be memory bound. BTW, on my DUT the LLC is 35MB and has 28 cores and so the assumption of 2.5M/core isn't right. - Bhanuprakash. > >On Fri, Jun 23, 2017 at 11:15 AM, Hui Xiang <xiangh...@gmail.com> wrote: >Thanks Darrell, > >More questions: >Why not allocating 64k for each dpcls? does the 64k just fit in L3 cache or >anywhere? how it is calculated in such an exact number? If there are more >ports added for polling, for avoid competing can I increase the 64k size into a >bigger one? Thanks. > >Hui. > > _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
