[dpdk-stable] [dpdk-dev] [PATCH 1/2] net/qede: fix performance bottleneck in Rx path

[Ferruh Yigit]

On 1/18/2019 2:41 PM, Ferruh Yigit wrote:
> On 1/18/2019 10:29 AM, Shahed Shaikh wrote:
>> Allocating replacement buffer per received packet is expensive.
>> Instead, process received packets first and allocate
>> replacement buffers in bulk later.
>>
>> This improves performance by ~25% in terms of PPS on AMD
>> platforms.
>>
>> Fixes: 2ea6f76aff40 ("qede: add core driver")
>> Cc: stable at dpdk.org
>>
>> Signed-off-by: Shahed Shaikh <shshaikh at marvell.com>
> 
> Hi Shahed,
> 
> This patch has been sent same day of the RC3, very close to the actual release,
> and updating data path of the driver, so not a trivial patch.
> 
> Although I tend to accept driver patches late in process this one was too late,
> you won't have proper time to fix if any errors detected, but also I can see it
> has a good amount performance effect.
> 
> I would like to explicitly ask if you are willing to take the risk. If answer is
> yes, please also be sure to get Rasesh's ack.

cc'ed Thomas.