On 1/21/2021 6:16 PM, Olivier Cochard-Labbé wrote:
> On Thu, Jan 21, 2021 at 10:15 PM mike tancsa <m...@sentex.net
> <mailto:m...@sentex.net>> wrote:
>
>     Hi,
>
>         I noticed with version 1.98, a switch was made to FreeBSD 13
>     from 12
>     for some performance enhancements.  Is there a list or some benchmarks
>     that show the differences in forwarding ? I also noticed the
>     mention of
>     DPDK.  How does that work on FreeBSD ? I use FRR for my routing, is
>     there something I would benefit from by switching to 13 from 12 ?
>
>
> Hi,
> here are some benches regarding the performance improvement:
> The mention of DPDK, is just regarding the route-lookup algorithm, and
> you need to have a full-view use case to see the benefit:
> https://github.com/ocochard/netbenches/blob/master/Atom_C2758_8Cores-Chelsio_T540-CR/fullview/results/fbsd13-r368766D27401D27412/README.md
> <https://github.com/ocochard/netbenches/blob/master/Atom_C2758_8Cores-Chelsio_T540-CR/fullview/results/fbsd13-r368766D27401D27412/README.md>
>
>
Thanks for the links!  I do have a couple of devices with full views on
RELENG_12. I find they work great when the tables are relatively stable,
but when there is a lot of prefix churn, I do see some overflows on the
rx buffers (dev.cxl.0.stats.rx_ovflow0: 6012).  Where can I find
information about making use of this feature ? I take it, its a
RELENG_12 feature only ? Will it work with frr7 or do I need to use BIRD ?

Thanks,

    ---Mike



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