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Message-ID: <f1554ee7-2151-1304-c5c1-35264b9be5be@free.fr>
Date: Wed, 2 Aug 2017 19:31:19 +0200
From: Mason <slash.tmp@...e.fr>
To: Mans Rullgard <mans@...sr.com>
Cc: Florian Fainelli <f.fainelli@...il.com>,
David Miller <davem@...emloft.net>,
netdev <netdev@...r.kernel.org>,
Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH v2 0/2] nb8800 suspend/resume support
On 02/08/2017 18:10, Måns Rullgård wrote:
> ping -f is limited to 100 packets per second.
> Use something like iperf in UDP mode instead.
CLIENT: DESKTOP
# iperf3 -c 172.27.64.45 -u -b 950M
Connecting to host 172.27.64.45, port 5201
[ 4] local 172.27.64.1 port 55533 connected to 172.27.64.45 port 5201
[ ID] Interval Transfer Bandwidth Total Datagrams
[ 4] 0.00-1.00 sec 102 MBytes 858 Mbits/sec 13091
[ 4] 1.00-2.00 sec 114 MBytes 953 Mbits/sec 14541
[ 4] 2.00-3.00 sec 114 MBytes 953 Mbits/sec 14542
[ 4] 3.00-4.00 sec 114 MBytes 953 Mbits/sec 14541
[ 4] 4.00-5.00 sec 114 MBytes 953 Mbits/sec 14542
[ 4] 5.00-6.00 sec 114 MBytes 953 Mbits/sec 14541
[ 4] 6.00-7.00 sec 114 MBytes 953 Mbits/sec 14535
[ 4] 7.00-8.00 sec 114 MBytes 953 Mbits/sec 14536
[ 4] 8.00-9.00 sec 114 MBytes 953 Mbits/sec 14543
[ 4] 9.00-10.00 sec 114 MBytes 953 Mbits/sec 14541
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-10.00 sec 1.10 GBytes 943 Mbits/sec 0.247 ms 132176/143788 (92%)
[ 4] Sent 143788 datagrams
iperf Done.
SERVER: TANGO BOARD
# iperf3 -s
Accepted connection from 172.27.64.1, port 44995
[ 5] local 172.27.64.45 port 5201 connected to 172.27.64.1 port 55533
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 5] 0.00-1.00 sec 7.90 MBytes 66.2 Mbits/sec 0.218 ms 11365/12376 (92%)
[ 5] 1.00-2.00 sec 9.13 MBytes 76.6 Mbits/sec 0.230 ms 13381/14550 (92%)
[ 5] 2.00-3.00 sec 9.12 MBytes 76.5 Mbits/sec 0.290 ms 13372/14540 (92%)
[ 5] 3.00-4.00 sec 9.11 MBytes 76.4 Mbits/sec 0.292 ms 13369/14535 (92%)
[ 5] 4.00-5.00 sec 9.18 MBytes 77.0 Mbits/sec 0.178 ms 13374/14549 (92%)
[ 5] 5.00-6.00 sec 9.10 MBytes 76.3 Mbits/sec 0.228 ms 13367/14532 (92%)
[ 5] 6.00-7.00 sec 9.26 MBytes 77.7 Mbits/sec 0.607 ms 13356/14541 (92%)
[ 5] 7.00-8.00 sec 9.23 MBytes 77.4 Mbits/sec 0.507 ms 13364/14545 (92%)
[ 5] 8.00-9.00 sec 9.20 MBytes 77.1 Mbits/sec 0.215 ms 13351/14528 (92%)
[ 5] 9.00-10.00 sec 9.16 MBytes 76.9 Mbits/sec 0.188 ms 13356/14529 (92%)
[ 5] 10.00-10.04 sec 336 KBytes 72.2 Mbits/sec 0.247 ms 521/563 (93%)
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 5] 0.00-10.04 sec 0.00 Bytes 0.00 bits/sec 0.247 ms 132176/143788 (92%)
There is some packet loss, but the board doesn't lose connectivity.
With smaller packets...
# iperf3 -c 172.27.64.45 -u -b 950M -l 800
Connecting to host 172.27.64.45, port 5201
[ 4] local 172.27.64.1 port 35197 connected to 172.27.64.45 port 5201
[ ID] Interval Transfer Bandwidth Total Datagrams
[ 4] 0.00-1.00 sec 90.6 MBytes 760 Mbits/sec 118724
[ 4] 1.00-2.00 sec 107 MBytes 894 Mbits/sec 139718
[ 4] 2.00-3.00 sec 106 MBytes 889 Mbits/sec 138918
[ 4] 3.00-4.00 sec 107 MBytes 895 Mbits/sec 139768
[ 4] 4.00-5.00 sec 106 MBytes 891 Mbits/sec 139275
[ 4] 5.00-6.00 sec 107 MBytes 895 Mbits/sec 139862
[ 4] 6.00-7.00 sec 107 MBytes 895 Mbits/sec 139825
[ 4] 7.00-8.00 sec 107 MBytes 895 Mbits/sec 139775
[ 4] 8.00-9.00 sec 107 MBytes 895 Mbits/sec 139849
[ 4] 9.00-10.00 sec 107 MBytes 895 Mbits/sec 139835
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 4] 0.00-10.00 sec 1.02 GBytes 880 Mbits/sec 0.009 ms 564117/1375520 (41%)
[ 4] Sent 1375520 datagrams
iperf Done.
Accepted connection from 172.27.64.1, port 46151
[ 5] local 172.27.64.45 port 5201 connected to 172.27.64.1 port 35197
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 5] 0.00-1.00 sec 60.8 MBytes 510 Mbits/sec 0.004 ms 33508/113252 (30%)
iperf3: OUT OF ORDER - incoming packet = 147146 and received packet = 0 AND SP = 147497
iperf3: OUT OF ORDER - incoming packet = 146128 and received packet = 0 AND SP = 147690
iperf3: OUT OF ORDER - incoming packet = 146067 and received packet = 0 AND SP = 147863
iperf3: OUT OF ORDER - incoming packet = 147242 and received packet = 0 AND SP = 148039
iperf3: OUT OF ORDER - incoming packet = 163837 and received packet = 0 AND SP = 164363
[ 5] 1.00-2.00 sec 61.0 MBytes 511 Mbits/sec 0.198 ms 59635/139649 (43%)
iperf3: OUT OF ORDER - incoming packet = 286437 and received packet = 0 AND SP = 287226
iperf3: OUT OF ORDER - incoming packet = 302990 and received packet = 0 AND SP = 305710
[ 5] 2.00-3.00 sec 61.5 MBytes 517 Mbits/sec 0.005 ms 58369/138944 (42%)
iperf3: OUT OF ORDER - incoming packet = 427697 and received packet = 0 AND SP = 428089
iperf3: OUT OF ORDER - incoming packet = 441087 and received packet = 0 AND SP = 442963
iperf3: OUT OF ORDER - incoming packet = 453844 and received packet = 0 AND SP = 454238
[ 5] 3.00-4.00 sec 61.7 MBytes 517 Mbits/sec 0.008 ms 58975/139795 (42%)
[ 5] 4.00-5.00 sec 61.3 MBytes 514 Mbits/sec 0.010 ms 58453/138795 (42%)
[ 5] 5.00-6.00 sec 61.2 MBytes 513 Mbits/sec 0.014 ms 60141/140338 (43%)
[ 5] 6.00-7.00 sec 61.3 MBytes 514 Mbits/sec 0.009 ms 59055/139384 (42%)
iperf3: OUT OF ORDER - incoming packet = 993646 and received packet = 0 AND SP = 994370
[ 5] 7.00-8.00 sec 61.0 MBytes 512 Mbits/sec 0.007 ms 60265/140210 (43%)
iperf3: OUT OF ORDER - incoming packet = 1134516 and received packet = 0 AND SP = 1135942
[ 5] 8.00-9.00 sec 62.6 MBytes 523 Mbits/sec 0.198 ms 57805/139795 (41%)
iperf3: OUT OF ORDER - incoming packet = 1275612 and received packet = 0 AND SP = 1277716
[ 5] 9.00-10.00 sec 64.0 MBytes 538 Mbits/sec 0.007 ms 56029/139888 (40%)
[ 5] 10.00-10.04 sec 2.74 MBytes 589 Mbits/sec 0.009 ms 1882/5470 (34%)
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Jitter Lost/Total Datagrams
[ 5] 0.00-10.04 sec 0.00 Bytes 0.00 bits/sec 0.009 ms 564117/1375520 (41%)
[SUM] 0.0-10.0 sec 13 datagrams received out-of-order
A lot more packet loss, but RX holds on.
Regards.
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