Re: [PATCH net] vmxnet3: use gro callback when UPT is enabled

[Ronak Doshi]

> On 3/15/23, 9:13 PM, "Jakub Kicinski" <kuba@xxxxxxxxxx <mailto:kuba@xxxxxxxxxx>> wrote:
> 
> Can you provide some numbers to illustrate what the slow down is?

Below are some sample test numbers collected by our perf team. 
                          Test                                    socket & msg size                          base               using only gro
1VM    14vcpu UDP stream receive        256K 256 bytes (packets/sec)    217.01 Kps    187.98 Kps         -13.37%
16VM  2vcpu   TCP stream send Thpt     8K     256 bytes (Gbps)                18.00 Gbps    17.02 Gbps         -5.44%
1VM    14vcpu ResponseTimeMean Receive (in micro secs)                      163 us             170 us                -4.29%

In the past as well similar test was done. See
https://patchwork.ozlabs.org/project/netdev/patch/1308947605-4300-1-git-send-email-jesse@xxxxxxxxxx/

But, unfortunately there are no stats present in that discussion.

Thanks,
Ronak