[dpdk-users] Any way to get more that 40Mpps with 64bytes using a XL710 40Gb nic

[Stephen Hemminger]

On Fri, 29 Sep 2017 20:53:10 +0000
Mauricio Valdueza <mvaldueza at vmware.com> wrote:

> Hi Guys
> 
> Max theoretical value is 56.8 Mpps… but practical PCie limitations allow us to reach 42Mpps
> 
> I am reaching 36Mpps, so where are the 6Mpps lost ( ?
> 

Firmware?
PCI x16?
PCI also has per-transaction overhead?