mqtt（4）：mqtt

前言

mqtt 相关文章分类：https://blog.csdn.net/freewebsys/article/category/8677221

本文的原文连接是: https://blog.csdn.net/freewebsys/article/details/87784882
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1，关于mqtt-benchmark

使用 golang 编写的 mqtt 的基准测试工具。

有两个github 项目：
使用的是这个，进行基准测试，带vendor 文件夹。展示的结果好看些。
https://github.com/krylovsk/mqtt-benchmark

一个日本人写的项目，没有 vendor，结果没有格式化。
https://github.com/takanorig/mqtt-bench

2，使用

下载
https://github.com/krylovsk/mqtt-benchmark
里面少了一个 websocket的包。需要使用 vendor 工具补齐。

go get golang.org/x/net/websocket #安装 go get -u github.com/kardianos/govendor go install github.com/kardianos/govendor 进入工程目录 #初始化 govendor init #加入本地 vendor目录当中。 govendor add +external #查看生成列表。 govendor list 123456789101112131415

查看list 安装

$ govendor list pv github.com/GaryBoone/GoStats/descriptive_statistics_demo pv github.com/GaryBoone/GoStats/regression_demo v github.com/GaryBoone/GoStats/stats v github.com/eclipse/paho.mqtt.golang v github.com/eclipse/paho.mqtt.golang/packets pv github.com/eclipse/paho.mqtt.golang/samples v golang.org/x/net/websocket pl github.com/krylovsk/mqtt-benchmark m GoStats/stats 12345678910

运行测试：

./mqtt-benchmark -broker="tcp://localhost:1883" -clients=300 -count=100 -size=10 -quiet=true -topic="/test" 1

结果：

...... ======= CLIENT 6 ======= Ratio: 1.000 (100/100) Runtime (s): 0.041 Msg time min (ms): 0.110 Msg time max (ms): 0.760 Msg time mean (ms): 0.291 Msg time std (ms): 0.107 Bandwidth (msg/sec): 2410.829 ======= CLIENT 1 ======= Ratio: 1.000 (100/100) Runtime (s): 0.043 Msg time min (ms): 0.133 Msg time max (ms): 0.607 Msg time mean (ms): 0.287 Msg time std (ms): 0.102 Bandwidth (msg/sec): 2352.793 ======= CLIENT 3 ======= Ratio: 1.000 (100/100) Runtime (s): 0.043 Msg time min (ms): 0.102 Msg time max (ms): 3.549 Msg time mean (ms): 0.306 Msg time std (ms): 0.348 Bandwidth (msg/sec): 2308.455 ========= TOTAL (10) ========= Total Ratio: 1.000 (1000/1000) Total Runtime (sec): 0.044 Average Runtime (sec): 0.041 Msg time min (ms): 0.102 Msg time max (ms): 3.549 Msg time mean mean (ms): 0.289 Msg time mean std (ms): 0.007 Average Bandwidth (msg/sec): 2421.400 Total Bandwidth (msg/sec): 24214.000

3，总结

使用 mqtt-benchmark 进行基准测试。
可以很方便的测试看看负载压力咋样。然后对比进行优化。修改jvm 参数。增服务器负载。
mqtt 已经是非常的方便了。相关的项目都是很多了。非常完备。

本文的原文连接是:
https://blog.csdn.net/freewebsys/article/details/87784882

博主地址是：http://blog.csdn.net/freewebsys