Version: 5.0 🚧

Performance benchmark for SRS on RaspberryPi

SRS can running on armv6(RaspberryPi) or armv7(Android). The bellow data show the performance benchmark.

Install SRS

Download the binary for armv6 from Github or SRS Server

RaspberryPi

The hardware of raspberrypi:

RaspberryPi：Type B
SoC BroadcomBCM2835(CPU,GPU,DSP,SDRAM,USB)
CPU ARM1176JZF-S(ARM11) 700MHz
GPU Broadcom VideoCore IV, OpenGL ES 2.0, 1080p 30 h.264/MPEG-4 AVC decoder
RAM 512MByte
USB 2 x USB2.0
VideoOutput Composite RCA(PAL&NTSC), HDMI(rev 1.3&1.4), raw LCD Panels via DSI 14 HDMI resolution from 40x350 to 1920x1200 plus various PAL and NTSC standards
AudioOutput 3.5mm, HDMI
Storage SD/MMC/SDIO socket
Network 10/100 ethernet
Device 8xGPIO, UART, I2C, SPI bus, +3.3V, +5V, ground(nagetive)
Power 700mA(3.5W) 5V
Size 85.60 x 53.98 mm(3.370 x 2.125 in)
OS Debian GNU/linux, Fedora, Arch Linux ARM, RISC OS, XBMC

Software:

RaspberryPi img：2014-01-07-wheezy-raspbian.img
uname: Linux raspberrypi 3.10.25+ #622 PREEMPT Fri Jan 3 18:41:00 GMT 2014 armv6l GNU/Linux
cpu: arm61
Server: srs 0.9.38
ServerType: raspberry pi
Client：[srs-bench](https://github.com/ossrs/srs-bench)
ClientType: Virtual Machine Centos6
Play: PC win7, flash
Network: 100Mbps

Stream information:

Video Bitrate: 200kbps
Resolution: 768x320
Audio Bitrate: 30kbps

For arm SRS: arm

OS settings

Set limit: ulimit -HSn 10240
View the limit:

[root@dev6 ~]# ulimit -n
10240

Restart SRS：sudo /etc/init.d/srs restart

Publish and Play

Use centos to publish to SRS:

Start FFMPEG:

for((;;)); do \
    ./objs/ffmpeg/bin/ffmpeg \
        -re -i doc/source.flv \
        -acodec copy -vcodec copy \
        -f flv rtmp://192.168.1.105:1935/live/livestream; \
    sleep 1; 
done

* Play RTMP: `rtmp://192.168.1.105:1935/live/livestream`
* Online Play: [Online Player](http://ossrs.net/srs.release/trunk/research/players/srs_player.html?server=192.168.1.105&port=1935&app=live&stream=livestream&vhost=192.168.1.105&autostart=true)

## Client

The RTMP load test tool, read [srs-bench](https://github.com/ossrs/srs-bench)

The sb_rtmp_load used to test RTMP load, support 800-3k concurrency for each process.

* Build: `./configure && make`
* Start: `./objs/sb_rtmp_load -c 800 -r <rtmp_url>`

## Record Data

Record data before test:

* The cpu for SRS:

```bash
pid=`ps aux|grep srs|grep objs|awk '{print $2}'` && top -p $pid

The cpu for srs-bench:

pid=`ps aux|grep load|grep rtmp|awk '{print $2}'` && top -p $pid

The connections:

for((;;)); do \
    srs_connections=`sudo netstat -anp|grep 1935|grep ESTABLISHED|wc -l`;  \
    echo "srs_connections: $srs_connections";  \
    sleep 5;  \
done

The bandwidth in NBps:

[winlin@dev6 ~]$ dstat 30
----total-cpu-usage---- -dsk/total- -net/lo- ---paging-- ---system--
usr sys idl wai hiq siq| read  writ| recv  send|  in   out | int   csw 
  0   0  96   0   0   3|   0     0 |1860B   58k|   0     0 |2996   465 
  0   1  96   0   0   3|   0     0 |1800B   56k|   0     0 |2989   463 
  0   0  97   0   0   2|   0     0 |1500B   46k|   0     0 |2979   461 

The table

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	1.0%	3MB	3	-	-	-	0.8s

Memory(Mem): The memory usage for server.

Clients(Conn): The cocurrency connections to server.

ExpectNbps(ENbps): The expect network bandwidth in Xbps.

ActualNbps(ANbps): The actual network bandwidth in Xbps.

Benchmark SRS 0.9.38

Let's start performance benchmark.

The data for 10 clients:

./objs/sb_rtmp_load -c 10 -r rtmp://192.168.1.105:1935/live/livestream >/dev/null &

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	17%	1.4MB	11	2.53Mbps	2.6Mbps	1.3%	1.7s

The data for 20 clients:

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	23%	2MB	21	4.83Mbps	5.5Mbps	2.3%	1.5s

The data for 30 clients:

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	50%	4MB	31	7.1Mbps	8Mbps	4%	2s

The summary for RaspberryPi Type B, 230kbps performance:

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	17%	1.4MB	11	2.53Mbps	2.6Mbps	1.3%	1.7s
SRS	23%	2MB	21	4.83Mbps	5.5Mbps	2.3%	1.5s
SRS	50%	4MB	31	7.1Mbps	8Mbps	4%	2s

Benchmark SRS 0.9.72

The benchmark for RTMP SRS 0.9.72.

Server	CPU	Mem	Conn	ENbps	ANbps	sb	Lat
SRS	5%	2MB	2	1Mbps	1.2Mbps	0%	1.5s
SRS	20%	2MB	12	6.9Mbps	6.6Mbps	2.8%	2s
SRS	36%	2.4MB	22	12.7Mbps	12.9Mbps	2.3%	2.5s
SRS	47%	3.1MB	32	18.5Mbps	18.5Mbps	5%	2.0s
SRS	62%	3.4MB	42	24.3Mbps	25.7Mbps	9.3%	3.4s
SRS	85%	3.7MB	52	30.2Mbps	30.7Mbps	13.6%	3.5s

cubieboard benchmark

No data.

Winlin 2014.11

Install SRS​

RaspberryPi​

OS settings​

Publish and Play​

Benchmark SRS 0.9.38​

Benchmark SRS 0.9.72​

cubieboard benchmark​