jmeter -Dthreads=400 -n -t ~/Desktop/image-controller.jmx -l myimage/out -e -o myimage/log -j myimage/run.log
JMeter吞吐量=（number of requests）/(total time)-----总请求数目/总的时间
带宽控制
连接：
https://wiki.apache.org/jmeter/Controlling%20Bandwidth%20in%20JMeter%20to%20simulate%20different%20networks
jmeter.properties 或者user.properties
#httpclient.socket.http.cps=0
#httpclient.socket.https.cps=0
- cps = (target bandwidth in kbps * 1024) / 8
