Reading and writing speed of Reza rz/g2l arm development board storage and network measurement

This article is based on Feiling embedded OK-G2LD-C Development board , For which Storage read-write speed and Gigabit network bandwidth To test . I believe it can help you engineers to have a deeper understanding of this board .

Storage read-write speed test

1.eMMC Read and write test

OK-G2LD-C Platform eMMC By default, it runs on HS200 Pattern , The working seat width is 8. Here's a simple test eMMC Reading and writing speed , Here we read and write ext4 File systems, for example .

Write test ：

[email protected]:~# dd if=/dev/zero of=/test bs=1M count= 500 conv=fsync
500+0 records in
500+0 records out
524288000 bytes (524 MB)copied, 7.81532s, 67.1MB/s
 Read test ：
[email protected]:~# dd if=/test of=/dev/null bs=1M count= 500 conv=fsync
500+0 records in
500+0 records out
524288000 bytes (524 MB)copied, 6.49422s,80.7MB/s

From the above we can see that ,eMMC The write speed of is 67.1MB/s, The read speed is 80.7 MB/s.

2.TF Card reading and writing test

OK-G2LD-C Platform TF The card runs on by default SDR104 Pattern , The working seat width is 4, Here's a simple test TF The reading and writing speed of the card , We still read and write ext4 File systems, for example .

Write test ：

[email protected]:~# dd if=/dev/zero of=/run/media/mmcblk1p1/test bs=1M count=500 conv=fsync \oflag=direct
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 107.154s, 4.9MB/s

Read test ：

[email protected]:~# dd if=/run/media/mmcblk1p1/test of=/dev/null bs=1M iflag=direct
500+0 records in
500+0 records out
524288000 bytes (524 MB) copied, 14.7009s, 35.7MB/s

Through the above test, we can see that ,TF The write speed of the card is 4.9 MB/s, The read speed is 35.7 MB/s.

3.USB2.0 Read and write test

OK-G2LD-C Support two USB2.0 Interface , Users can be on any board USB HOST Connection on interface USB mouse 、USB keyboard 、U Panel and other equipment , And support the hot plug of the above devices . Here we read and write USB2.0 Interface U Disk as an example .

Write test :

[email protected]:~# dd if=/dev/zero of=/run/media/sda1/test bs=1M count=50 conv = fsync \oflag=direct
50+0 records in
50+0 records out
52428800 bytes (52 MB) copied, 8.81593s, 5.9MB/s

Read test ：

[email protected]:~# dd if=/run/media/sda1/test of=/dev/null bs=1M iflag=direct
50+0 records in
50+0 records out
52428800 bytes (52 MB) copied, 1.46226s, 35.9MB/s

Through the above test results, we can see ,USB2.0 The write speed of is 5.9 MB/s, The read speed is 35.9MB/s.

4.DDR Bandwidth test

Perform test operations

[email protected]:~# memory_bandwidth.sh

The printed information is as follows ：

OK-G2LD-C Of DDR4 The bandwidth is shown in the figure above , Read bandwidth 2765Mb/s, The read bandwidth is about 891Mb/s.

Network testing

Network streaming test

OK-G2LD-C The development board is equipped with two gigabit network ports , Xiaobian uses iperf3 Streaming test its actual network bandwidth .

[email protected]:~# iperf3 -c 192.168.0.2 -i 5 -t 60
Connecting to host 192.168.0.2, port 5201
[  5] local 192.168.0.232 port 39804 connected to 192.168.0.2 port 5201
[ ID] Interval  Transfer  Bitrate  Retr  Cwnd
[  5]   0.00-5.00   sec   38.3 MBytes  64.3 Mbits/sec  1736   1.41 KBytes
[  5]   5.00-10.00  sec  44.2 MBytes  74.2 Mbits/sec  1785   4.24 KBytes
[  5]  10.00-15.00  sec  67.7 MBytes   114 Mbits/sec  2741   2.83 KBytes
[  5]  15.00-20.00  sec  26.0 MBytes  43.6 Mbits/sec  1043   1.41 KBytes
[  5]  20.00-25.00  sec  53.2 MBytes  89.2 Mbits/sec  2054   2.83 KBytes
[  5]  25.00-30.00  sec  42.4 MBytes  71.2 Mbits/sec  2030   2.83 KBytes
[  5]  30.00-35.00  sec  44.1 MBytes  74.0 Mbits/sec  2085   5.66 KBytes
[  5]  35.00-40.00  sec  32.3 MBytes  54.2 Mbits/sec  1528   1.41 KBytes
[  5]  40.00-45.00  sec  33.6 MBytes  56.4 Mbits/sec  1671   11.3 KBytes
[  5]  45.00-50.00  sec  45.1 MBytes  75.6 Mbits/sec  2151   1.41 KBytes
[  5]  50.00-55.00  sec  28.1 MBytes  47.1 Mbits/sec  1388   1.41 KBytes
[  5]  55.00-60.00  sec  24.7 MBytes  41.5 Mbits/sec  1222   2.83 KBytes
- - - - - - - - - - - - - - - - - - - 
[ ID] Interval   Transfer  Bitrate   Retr
[  5]   0.00-60.00  sec   480 MBytes  67.1 Mbits/sec  21434    sender
[  5]   0.00-60.00  sec   479 MBytes  67.0 Mbits/sec              receiver

This test uses OK-G2LD-C Development board and OK1028-C The Gigabit network port of the development board is tested , among OK-G2LD-C Development board as client ,OK1028-C Development board as a server . From the above data, we can see , The transmission bandwidth of gigabit network port is actually about 480 MBytes.

The above is what Xiaobian brought to you OK-G2LD-C Test the read and write speed of the development board storage and the actual bandwidth of the Gigabit network port , I hope it can be helpful to all the engineers .