solved: Re: Chelsio T520-SO-CR low performance (netmap tested) for RX

[Marcus Cenzatti]

On 1/24/2016 at 5:56 AM, "Marcus Cenzatti" <cenzatti at hush.com> wrote:
>
>On 1/24/2016 at 5:17 AM, "Luigi Rizzo" <rizzo at iet.unipi.it> wrote:
>>
>>On Sat, Jan 23, 2016 at 11:00 PM, Marcus Cenzatti 
>><cenzatti at hush.com> wrote:
>>>
>>>
>>> On 1/24/2016 at 3:33 AM, "Luigi Rizzo" <rizzo at iet.unipi.it> 
>>wrote:
>>...
>>
>>> ok here it is
>>>
>>> this lowered pps rate to 9.4Mpps on chelsio (we had 11Mpps with 
>>defaul len) and lowered rates to 14Mpps on sender (we had 
>14.8Mpps 
>>before).
>>
>>see the other email from navdeep, he suggests to try -l 62
>>because the chelsio saves the packet with a 2-byte offset
>>into the buffer (it puzzles me a bit that it does so also
>>in netmap mode though).
>>
>>cheers
>>luigi
>
>yes, I saw, i've run both with 62 bytes and 64 bytes len

i mean 62 and 66

>
>very different results from the previous one and among both pkt 
>sizes but could not go beyond 11Mpps
>
>results:
>
>-l 62 = TX 14.8Mpps RX 11Mpps
>-l 66 = TX 12.4Mpps RX 9.4Mpps
>