bad throughput performance on multiple systems: Re: Fwd: Re: Disappointing packets-per-second performance results on a Dell,PE R530

[Navdeep Parhar]

On Fri, Mar 17, 2017 at 11:43:32PM -0400, John Jasen wrote:
> On 03/17/2017 03:32 PM, Navdeep Parhar wrote:
> 
> > On Fri, Mar 17, 2017 at 12:21 PM, John Jasen <jjasen at gmail.com> wrote:
> >> Yes.
> >> We were hopeful, initially, to be able to achieve higher packet
> >> forwarding rates through either netmap-fwd or due to enhancements based
> >> off https://wiki.freebsd.org/ProjectsRoutingProposal
> > Have you tried netmap-fwd?  I'd be interested in how that did in your tests.
> 
> We have. On this particular box, (11-STABLE, netmap-fwd fresh from git)
> it took about 1.7m pps in, dropped 500k, and passed about 800k.
>
> I'm lead to believe that vcxl interfaces may yield better results?

Yes, those are the ones with native netmap support.  Any netmap based
application should use the vcxl interfaces.  If you used them on the
main cxl interfaces you were running netmap in emulated mode.

Regards,
Navdeep