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BENCHMARK
WINC1500 Wi-Fi Module Benchmark using iperf 2.0.5
BENCH-XXXX
Prerequisites
Hardware Prerequisites
Atmel Xplained Pro Evaluation Kit
Atmel WINC1500 extension
USB Micro Cable (TypeA / MicroB)
Software Prerequisites
Atmel Studio 6.2
iperf project
Introduction
This document provides bandwidth information for TCP and UDP protocol. It applies
to the following products:
SAM4S Xplained Pro
SAMG53 Xplained Pro
SAMD21 Xplained Pro
42271A05/14
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 2 of 13
Table of Contents
Prerequisites .....................................................................................1
Introduction .......................................................................................1
Icon Key Identifiers ...........................................................................3
1. Benchmark configuration ...........................................................4
1.1 Solution Overview ................................................................................ 4
2. Firmware release 18 ..................................................................5
2.1 SAM4S Xplained Pro ........................................................................... 5
2.2 SAMG53 Xplained Pro ......................................................................... 7
2.3 SAMD21 Xplained Pro ......................................................................... 9
3. Performance summary ............................................................. 11
4. Revision History ....................................................................... 12
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 3 of 13
Icon Key Identifiers
Icons are used to identify different assignment sections and reduce complexity.
These icons are:
Delivers contextual information about a specific topic
Highlights useful tips and techniques
Highlights objectives to be completed
Highlights the expected result of an assignment step
Indicates important information
Highlights actions to be executed out of the target when necessary
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 4 of 13
1. Benchmark configuration
1.1 Solution Overview
The purpose of this benchmark is to measure the bandwidth of the WINC1500 Wi-Fi module with several
different Atmel MCU devices.
The iperf version used is 2.0.5. Hence, it has been ported to Atmel MCU and operates as a server.
To run this project you will need to have:
Atmel Xplained Pro board (supported chip list below)
Atmel WINC1500 extension
Atmel Studio 6.2.1153 or above
Iperf project
Linux laptop with iperf v2.0.5 installed
The iperf project has been ported to the following Atmel MCU:
Atmel SAM4S Xplained Pro board
Atmel SAMD21 Xplained Pro board
Atmel SAMG53 Xplained Pro board
The purpose of this document is to evaluate the bandwidth of the WINC1500 Wi-Fi
module for TCP and UDP protocol throughout the available WINC1500 firmware
release.
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 5 of 13
2. Firmware release 18
2.1 SAM4S Xplained Pro
CPU is running at 120Mhz and SPI is set at 60Mhz, compiled with -oS:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59733 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 4.00 MBytes 6.71 Mbits/sec
[ 5] 5.0-10.0 sec 4.00 MBytes 6.71 Mbits/sec
[ 5] 0.0-10.2 sec 8.12 MBytes 6.68 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 11.78 Mbytes 9.42 Mbits/sec 31779/ 42554
(74.6%)
TX [ 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port
1030
[ 4] 0.0- 5.0 sec 2.18 MBytes 3.66 Mbits/sec
[ 4] 5.0-10.0 sec 1.24 MBytes 2.08 Mbits/sec
[ 4] 0.0-10.2 sec 3.45 MBytes 2.84 Mbits/sec
[ 3] 0.0- 5.0 sec 8.24 MBytes 13.8 Mbits/sec 1.303 ms
43930/50578 (87%)
[ 3] 5.0-10.0 sec 8.26 MBytes 13.9 Mbits/sec 0.761 ms
44235/50895 (87%)
[ 3] 10.0-15.0 sec 8.00 MBytes 13.4 Mbits/sec 0.435 ms
45464/51917 (88%)
[ 3] 15.0-20.0 sec 8.64 MBytes 14.5 Mbits/sec 0.427 ms
42171/49140 (86%)
[ 3] 20.0-25.0 sec 7.04 MBytes 11.8 Mbits/sec 0.715 ms
49998/55674 (90%)
[ 3] 25.0-30.0 sec 6.93 MBytes 11.6 Mbits/sec 0.515 ms
50671/56262 (90%)
[ 3] 30.0-35.0 sec 7.19 MBytes 12.1 Mbits/sec 0.925 ms
49055/54858 (89%)
[ 3] 35.0-40.0 sec 6.67 MBytes 11.2 Mbits/sec 0.729 ms
51774/57152 (91%)
[ 3] 40.0-45.0 sec 7.23 MBytes 12.1 Mbits/sec 0.682 ms
49282/55112 (89%)
[ 3] 45.0-50.0 sec 7.56 MBytes 12.7 Mbits/sec 1.246 ms
47350/53448 (89%)
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 6 of 13
CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with -oS:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59762 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 1.75 MBytes 2.94 Mbits/sec
[ 5] 5.0-10.0 sec 1.62 MBytes 2.73 Mbits/sec
[ 5] 0.0-10.5 sec 3.50 MBytes 2.79 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 6.75 Mbytes 5.40 Mbits/sec 36496/ 42549
(85.774047%)
TX [ 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port
1029
[ 4] 0.0- 5.0 sec 1.75 MBytes 2.94 Mbits/sec
[ 4] 5.0-10.0 sec 1.89 MBytes 3.17 Mbits/sec
[ 4] 0.0-10.4 sec 3.67 MBytes 2.95 Mbits/sec
[ 3] 0.0- 5.0 sec 5.00 MBytes 8.39 Mbits/sec 1.012 ms 1937/
5970 (32%)
[ 3] 5.0-10.0 sec 5.11 MBytes 8.57 Mbits/sec 1.377 ms 1151/
5271 (22%)
[ 3] 10.0-15.0 sec 4.89 MBytes 8.20 Mbits/sec 1.077 ms 2858/
6799 (42%)
[ 3] 15.0-20.0 sec 5.19 MBytes 8.70 Mbits/sec 1.099 ms 594/
4778 (12%)
[ 3] 20.0-25.0 sec 4.84 MBytes 8.12 Mbits/sec 1.115 ms 3099/
7004 (44%)
[ 3] 25.0-30.0 sec 5.16 MBytes 8.65 Mbits/sec 1.132 ms 785/
4946 (16%)
[ 3] 30.0-35.0 sec 5.20 MBytes 8.73 Mbits/sec 1.222 ms 509/
4706 (11%)
[ 3] 35.0-40.0 sec 5.10 MBytes 8.56 Mbits/sec 0.989 ms 1179/
5296 (22%)
[ 3] 40.0-45.0 sec 5.03 MBytes 8.44 Mbits/sec 1.080 ms 1785/
5844 (31%)
[ 3] 45.0-50.0 sec 4.86 MBytes 8.15 Mbits/sec 1.144 ms 2950/
6870 (43%)
This test gives an idea of bandwidth performance we could expect from the SAMD21
Xplained Pro if the host driver was to use DMA..
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 7 of 13
2.2 SAMG53 Xplained Pro
CPU is running at 48Mhz and SPI is set at 48Mhz, compiled with -oS:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59733 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 3.38 MBytes 5.66 Mbits/sec
[ 5] 5.0-10.0 sec 3.38 MBytes 5.66 Mbits/sec
[ 5] 0.0-10.4 sec 6.88 MBytes 5.54 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 8.49 Mbytes 6.79 Mbits/sec 34833/ 42523
(81.915672%)
TX [ 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port
1030
[ 4] 0.0- 5.0 sec 2.14 MBytes 3.58 Mbits/sec
[ 4] 5.0-10.0 sec 1.51 MBytes 2.54 Mbits/sec
[ 4] 0.0-10.0 sec 3.68 MBytes 2.93 Mbits/sec
[ 3] 0.0- 5.0 sec 8.19 MBytes 13.7 Mbits/sec 0.783 ms 2884/
9486 (30%)
[ 3] 5.0-10.0 sec 8.14 MBytes 13.6 Mbits/sec 1.050 ms 3119/
9681 (32%)
[ 3] 10.0-15.0 sec 8.14 MBytes 13.7 Mbits/sec 0.633 ms 3264/
9829 (33%)
[ 3] 15.0-20.0 sec 8.28 MBytes 13.9 Mbits/sec 1.176 ms 2265/
8945 (25%)
[ 3] 20.0-25.0 sec 7.99 MBytes 13.4 Mbits/sec 1.072 ms
3956/10397 (38%)
[ 3] 25.0-30.0 sec 7.58 MBytes 12.7 Mbits/sec 0.655 ms
5769/11883 (49%)
[ 3] 30.0-35.0 sec 6.99 MBytes 11.7 Mbits/sec 1.829 ms
8201/13843 (59%)
[ 3] 35.0-40.0 sec 7.76 MBytes 13.0 Mbits/sec 0.940 ms
5042/11303 (45%)
[ 3] 40.0-45.0 sec 7.44 MBytes 12.5 Mbits/sec 0.843 ms
6357/12356 (51%)
[ 3] 45.0-50.0 sec 7.89 MBytes 13.2 Mbits/sec 0.622 ms
4398/10762 (41%)
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 8 of 13
CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with -oS:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59762 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 1.75 MBytes 2.94 Mbits/sec
[ 5] 5.0-10.0 sec 1.75 MBytes 2.94 Mbits/sec
[ 5] 0.0-10.7 sec 3.62 MBytes 2.83 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 6.42 Mbytes 5.14 Mbits/sec 36814/ 42543
(86.533622%)
TX [ 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port
1029
[ 4] 0.0- 5.0 sec 2.12 MBytes 3.55 Mbits/sec
[ 4] 5.0-10.0 sec 631 KBytes 1.03 Mbits/sec
[ 4] 0.0-10.1 sec 2.75 MBytes 2.29 Mbits/sec
[ 3] 0.0- 5.0 sec 4.91 MBytes 8.24 Mbits/sec 1.021 ms 2780/
6742 (41%)
[ 3] 5.0-10.0 sec 4.85 MBytes 8.13 Mbits/sec 0.998 ms 3180/
7089 (45%)
[ 3] 10.0-15.0 sec 4.71 MBytes 7.91 Mbits/sec 0.895 ms 4079/
7880 (52%)
[ 3] 15.0-20.0 sec 5.09 MBytes 8.54 Mbits/sec 1.434 ms 1500/
5607 (27%)
[ 3] 20.0-25.0 sec 5.15 MBytes 8.64 Mbits/sec 1.102 ms 1244/
5400 (23%)
[ 3] 25.0-30.0 sec 5.04 MBytes 8.46 Mbits/sec 1.540 ms 1866/
5931 (31%)
[ 3] 30.0-35.0 sec 5.22 MBytes 8.76 Mbits/sec 0.973 ms 803/
5016 (16%)
[ 3] 35.0-40.0 sec 5.07 MBytes 8.51 Mbits/sec 1.280 ms 1713/
5803 (30%)
[ 3] 40.0-45.0 sec 4.97 MBytes 8.34 Mbits/sec 0.767 ms 2459/
6467 (38%)
[ 3] 45.0-50.0 sec 4.81 MBytes 8.07 Mbits/sec 1.023 ms 3457/
7336 (47%)
This test gives an idea of bandwidth performance we could expect from the SAMD21
Xplained Pro if the host driver was to use DMA.
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 9 of 13
2.3 SAMD21 Xplained Pro
The SAMD21 port is not optimized as the SPI implementation is based on polling. Hence, performances are more impacted by optimization level. For this test only, several optimization levels will be tested.
CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with –oS:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59762 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 768 KBytes 1.26 Mbits/sec
[ 5] 5.0-10.0 sec 768 KBytes 1.26 Mbits/sec
[ 5] 0.0-11.8 sec 1.62 MBytes 1.16 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 2.68 Mbytes 2.14 Mbits/sec 39985/ 42274
(94.585327%)
TX [ 4] 0.0- 5.0 sec 741 KBytes 1.21 Mbits/sec
[ 4] 5.0-10.0 sec 992 KBytes 1.62 Mbits/sec
[ 4] 0.0-10.0 sec 1.69 MBytes 1.42 Mbits/sec
[ 3] 0.0- 5.0 sec 1.23 MBytes 2.06 Mbits/sec 4.932 ms 10/ 1002
(1%)
[ 3] 5.0-10.0 sec 1.23 MBytes 2.07 Mbits/sec 4.780 ms 6/ 1002
(0.6%)
[ 3] 10.0-15.0 sec 1.24 MBytes 2.08 Mbits/sec 4.870 ms 4/
1002 (0.4%)
[ 3] 15.0-20.0 sec 1.23 MBytes 2.07 Mbits/sec 4.922 ms 10/
1005 (1%)
[ 3] 20.0-25.0 sec 1.24 MBytes 2.08 Mbits/sec 4.451 ms 4/
1002 (0.4%)
[ 3] 25.0-30.0 sec 1.23 MBytes 2.06 Mbits/sec 4.832 ms 10/
1002 (1%)
[ 3] 30.0-35.0 sec 1.24 MBytes 2.08 Mbits/sec 4.910 ms 5/
1003 (0.5%)
[ 3] 35.0-40.0 sec 1.24 MBytes 2.07 Mbits/sec 4.910 ms 5/
1002 (0.5%)
[ 3] 40.0-45.0 sec 1.24 MBytes 2.08 Mbits/sec 4.963 ms 3/
1001 (0.3%)
[ 3] 45.0-50.0 sec 1.24 MBytes 2.08 Mbits/sec 4.902 ms 4/
1004 (0.4%)
[ 3] 50.0-55.0 sec 1.24 MBytes 2.07 Mbits/sec 4.933 ms 5/
1002 (0.5%)
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 10 of 13
CPU is running at 48Mhz and SPI is set at 12Mhz, compiled with –o1:
TCP Bandwidth UDP Bandwidth
RX thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to 192.168.1.4, TCP port 5001
TCP window size: 20.8 KByte (default)
------------------------------------------------------------
[ 5] local 192.168.1.5 port 59762 connected with 192.168.1.4
port 5001
[ ID] Interval Transfer Bandwidth
[ 5] 0.0- 5.0 sec 768 KBytes 1.26 Mbits/sec
[ 5] 5.0-10.0 sec 768 KBytes 1.26 Mbits/sec
[ 5] 0.0-11.4 sec 1.62 MBytes 1.20 Mbits/sec
thibault@ubuntu:~$ iperf -c 192.168.1.4 -i 5 -r -u -b 50m
------------------------------------------------------------
Server listening on TCP/UDP port 5001
TCP window size: ??? KByte
------------------------------------------------------------
[ 7] local 127.0.0.1 port 5001 connected with 192.168.1.5 port 52128
[ 7] 0.0-10.0 sec 2.66 Mbytes 2.13 Mbits/sec 40290/ 42538
(94.715316%)
TX [ 4] local 192.168.1.5 port 5001 connected with 192.168.1.4 port
1029
[ 4] 0.0- 5.0 sec 763 KBytes 1.25 Mbits/sec
[ 4] 5.0-10.0 sec 909 KBytes 1.49 Mbits/sec
[ 4] 0.0-10.0 sec 1.64 MBytes 1.37 Mbits/sec
[ 3] 0.0- 5.0 sec 1.19 MBytes 2.00 Mbits/sec 4.794 ms 15/ 977
(1.5%)
[ 3] 5.0-10.0 sec 1.21 MBytes 2.02 Mbits/sec 5.037 ms 5/ 977
(0.51%)
[ 3] 10.0-15.0 sec 1.20 MBytes 2.02 Mbits/sec 5.248 ms 6/ 977
(0.61%)
[ 3] 15.0-20.0 sec 1.21 MBytes 2.03 Mbits/sec 5.021 ms 3/ 978
(0.31%)
[ 3] 20.0-25.0 sec 1.21 MBytes 2.03 Mbits/sec 5.021 ms 3/ 977
(0.31%)
[ 3] 25.0-30.0 sec 1.21 MBytes 2.03 Mbits/sec 5.043 ms 2/ 977
(0.2%)
[ 3] 30.0-35.0 sec 1.20 MBytes 2.02 Mbits/sec 5.458 ms 7/ 976
(0.72%)
[ 3] 35.0-40.0 sec 1.21 MBytes 2.03 Mbits/sec 4.959 ms 2/ 978
(0.2%)
[ 3] 40.0-45.0 sec 1.21 MBytes 2.02 Mbits/sec 5.002 ms 4/ 977
(0.41%)
[ 3] 45.0-50.0 sec 1.21 MBytes 2.03 Mbits/sec 5.055
ms 4/ 978 (0.41%)
To ensure good TCP TX performances, the send function call must NOT be made from the SOCKET_MSG_SENT callback. It is advised to put the function call directly in the
program main loop (where function m2m_wifi_handle_events is periodically called).
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 11 of 13
3. Performance summary
The following table gives an overview of the best possible performances according to the previous test reports:
Chip
TCP UDP
Downstream Upstream Downstream Upstream
WINC1500 Firmware Version 18
SAM4S 6.68 Mbits/sec 2.84 Mbits/sec 9.42 Mbits/sec 12.70 Mbits/sec
SAMG53 5.54 Mbits/sec 2.93 Mbits/sec 6.79 Mbits/sec 13.2 Mbits/sec
SAMD21 1.16 Mbits/sec 1.42 Mbits/sec 2.14 Mbits/sec 2.07 Mbits/sec
The reported values are average and may slightly change when trying to reproduce
this test depending on test environment.
Introduction-to-the-WINC1500-WiFi-Network-Controller-using-SAM-D21-Xplained-Pro: 8/24/2014
Page 12 of 13
4. Revision History
Doc. Rev. Date Comments
XXXXXA 01/2015 Initial document release
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Tel: (+1)(408) 441-0311
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JAPAN
Tel: (+81)(3) 6417-0300
Fax: (+81)(3) 6417-0370
© 2012 Atmel Corporation. All rights reserved. / Rev.: 42271A05/14
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