[dpdk-dev] [PATCH] vhost: remove copy threshold for async vhost

[Maxime Coquelin]

Hi Ferruh,

On 9/16/21 13:15, Ferruh Yigit wrote:
> On 8/20/2021 1:44 PM, Jiayu Hu wrote:
>> Copy threshold is introduced in async vhost data path to select
>> the appropriate copy engine to do copies for higher efficiency.
>> However, it may cause packets out-of-order, and it also causes
>> data path performance unpredictable.
>>
> 
> Just checking, if the patch is fixing data performance issue, should it be
> backported?

This is experimental code that is not used in real product for now, and
will likely heavily change given OVS rejected this design.

So I would personally not bother backporting patches for it.
Jiayu, Chenbo, do you think otherwise?

Regards,
Maxime

>> Therefore, this patch removes copy threshold support in async vhost
>> data path.
>>
>> Signed-off-by: Jiayu Hu <jiayu.hu at intel.com>
>> Signed-off-by: Cheng Jiang <cheng1.jiang at intel.com>
> <...>
> 
>