---
title: RaspBerryPi
sidebar_label: RaspBerryPi
hide_title: false
hide_table_of_contents: false
---
# 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](http://ossrs.net/srs.release/releases/)
or [SRS Server](http://ossrs.net/srs/releases/)
## RaspberryPi
The hardware of raspberrypi:
* [RaspberryPi](http://item.jd.com/1014155.html)：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](./arm.md#raspberrypi)
## OS settings
Login as root, set the fd limits:
* Set limit: `ulimit -HSn 10240`
* View the limit:
```bash
[root@dev6 ~]# ulimit -n
10240
```
* Restart SRS：`sudo /etc/init.d/srs restart`
## Publish and Play
Use centos to publish to SRS:
* Start FFMPEG:
```bash
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://localhost:8080/players/srs_player.html?autostart=true&stream=livestream.flv&port=8080&schema=http)
## 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 `
## 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:
```bash
pid=`ps aux|grep load|grep rtmp|awk '{print $2}'` && top -p $pid
```
* The connections:
```bash
for((;;)); do \
srs_connections=`sudo netstat -anp|grep 1935|grep ESTABLISHED|wc -l`; \
echo "srs_connections: $srs_connections"; \
sleep 5; \
done
```
* The bandwidth in NBps:
```bash
[winlin@dev6 ~]$ 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:
```bash
./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
