[dpdk-dev] [PATCH 07/12] net/bnxt: increase max burst size for vector mode

[Ferruh Yigit]

On 9/11/2020 4:38 PM, Lance Richardson wrote:
> On Fri, Sep 11, 2020 at 11:19 AM Ferruh Yigit <ferruh.yigit at intel.com> wrote:
>>
>> On 9/9/2020 4:53 PM, Lance Richardson wrote:
>>> Increase the maximum supported burst size for the bnxt vector
>>> mode PMD from 32 to 64.
>>
>> What is the motivation here? Like does it improve the performance? If so in
>> which conditions etc.. It would be nice to describe the why & impact.
>>
> 
> How about this:
> 
>     net/bnxt: increase max burst size for vector mode
> 
>     Increase the maximum supported burst size for the bnxt vector
>     mode PMD from 32 to 64. With larger burst sizes, per-burst
>     overhead is amortized over more packets, improving overall
>     performance. For small packets this has been measured to
>     provide a 4-10% increase in single-core throughput with
>     testpmd iofwd.
> 

Will update while merging, thanks.