Re: [EXT] Re: [PATCH 1/1] net: fec: using page pool to manage RX buffers

Andrew Lunn
2022-09-30T20:01:55Z

> The testing above was on the imx8 platform. The following are the testing result
> On the imx6sx board:
>
> ######### Original implementation ######
>
> shenwei@5810:~/pktgen$ iperf -c 10.81.16.245 -w 2m -i 1
> ------------------------------------------------------------
> Client connecting to 10.81.16.245, TCP port 5001
> TCP window size: 416 KByte (WARNING: requested 1.91 MByte)
> ------------------------------------------------------------
> [ 1] local 10.81.17.20 port 36486 connected with 10.81.16.245 port 5001
> [ ID] Interval Transfer Bandwidth
> [ 1] 0.0000-1.0000 sec 70.5 MBytes 591 Mbits/sec
> [ 1] 1.0000-2.0000 sec 64.5 MBytes 541 Mbits/sec
> [ 1] 2.0000-3.0000 sec 73.6 MBytes 618 Mbits/sec
> [ 1] 3.0000-4.0000 sec 73.6 MBytes 618 Mbits/sec
> [ 1] 4.0000-5.0000 sec 72.9 MBytes 611 Mbits/sec
> [ 1] 5.0000-6.0000 sec 73.4 MBytes 616 Mbits/sec
> [ 1] 6.0000-7.0000 sec 73.5 MBytes 617 Mbits/sec
> [ 1] 7.0000-8.0000 sec 73.4 MBytes 616 Mbits/sec
> [ 1] 8.0000-9.0000 sec 73.4 MBytes 616 Mbits/sec
> [ 1] 9.0000-10.0000 sec 73.9 MBytes 620 Mbits/sec
> [ 1] 0.0000-10.0174 sec 723 MBytes 605 Mbits/sec
>
>
> ###### Page Pool implémentation ########
>
> shenwei@5810:~/pktgen$ iperf -c 10.81.16.245 -w 2m -i 1
> ------------------------------------------------------------
> Client connecting to 10.81.16.245, TCP port 5001
> TCP window size: 416 KByte (WARNING: requested 1.91 MByte)
> ------------------------------------------------------------
> [ 1] local 10.81.17.20 port 57288 connected with 10.81.16.245 port 5001
> [ ID] Interval Transfer Bandwidth
> [ 1] 0.0000-1.0000 sec 78.8 MBytes 661 Mbits/sec
> [ 1] 1.0000-2.0000 sec 82.5 MBytes 692 Mbits/sec
> [ 1] 2.0000-3.0000 sec 82.4 MBytes 691 Mbits/sec
> [ 1] 3.0000-4.0000 sec 82.4 MBytes 691 Mbits/sec
> [ 1] 4.0000-5.0000 sec 82.5 MBytes 692 Mbits/sec
> [ 1] 5.0000-6.0000 sec 82.4 MBytes 691 Mbits/sec
> [ 1] 6.0000-7.0000 sec 82.5 MBytes 692 Mbits/sec
> [ 1] 7.0000-8.0000 sec 82.4 MBytes 691 Mbits/sec
> [ 1] 8.0000-9.0000 sec 82.4 MBytes 691 Mbits/sec
> ^C[ 1] 9.0000-9.5506 sec 45.0 MBytes 686 Mbits/sec
> [ 1] 0.0000-9.5506 sec 783 MBytes 688 Mbits/sec

Cool, so it helps there as well.

But you knew i was interested in these numbers. So you should of made
them part of the commit message so i didn't have to ask...

Andrew