轻量级HTTP压力测试工具hey介绍与实践

安装hey

以下使用Linux 64位系统,如果您是其它操作系统,请自行前往hey项目地址下载对应客户端。

作者已经提供编译好的二进制包,可直接下载使用:

#下载hey 
wget https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64 
#赋予执行权限 
chmod +x hey_linux_amd64 
#移动文件到sbin目录 
mv hey_linux_amd64 /usr/sbin/hey

其它操作系统:

Linux 64-bit: https://hey-release.s3.us-east-2.amazonaws.com/hey_linux_amd64

Mac 64-bit: https://hey-release.s3.us-east-2.amazonaws.com/hey_darwin_amd64

Windows 64-bit: https://hey-release.s3.us-east-2.amazonaws.com/hey_windows_amd64

hey的使用

输入hey -h查看帮助信息:

flag needs an argument: -h
Usage: hey [options...] <url>

Options:
  -n  Number of requests to run. Default is 200.
  -c  Number of workers to run concurrently. Total number of requests cannot
      be smaller than the concurrency level. Default is 50.
  -q  Rate limit, in queries per second (QPS) per worker. Default is no rate limit.
  -z  Duration of application to send requests. When duration is reached,
      application stops and exits. If duration is specified, n is ignored.
      Examples: -z 10s -z 3m.
  -o  Output type. If none provided, a summary is printed.
      "csv" is the only supported alternative. Dumps the response
      metrics in comma-separated values format.

  -m  HTTP method, one of GET, POST, PUT, DELETE, HEAD, OPTIONS.
  -H  Custom HTTP header. You can specify as many as needed by repeating the flag.
      For example, -H "Accept: text/html" -H "Content-Type: application/xml" .
  -t  Timeout for each request in seconds. Default is 20, use 0 for infinite.
  -A  HTTP Accept header.
  -d  HTTP request body.
  -D  HTTP request body from file. For example, /home/user/file.txt or ./file.txt.
  -T  Content-type, defaults to "text/html".
  -a  Basic authentication, username:password.
  -x  HTTP Proxy address as host:port.
  -h2 Enable HTTP/2.

  -host HTTP Host header.

  -disable-compression  Disable compression.
  -disable-keepalive    Disable keep-alive, prevents re-use of TCP
                        connections between different HTTP requests.
  -disable-redirects    Disable following of HTTP redirects
  -cpus                 Number of used cpu cores.
                        (default for current machine is 2 cores)

举个例子:

hey -n 10000 -c 100 -m GET https://www.qq.com/
  • -n:请求总数
  • -c:客户端连接数
  • -m:请求方法,比如GET/POST

上面例子的含义就是对https://www.qq.com/发起100个GET并发请求,请求总数为10000个,执行完毕后hey还会打印统计信息,如下。

Summary:
 Total: 9.9769 secs
 Slowest: 0.3740 secs
 Fastest: 0.0350 secs
 Average: 0.0971 secs
 Requests/sec: 1002.3120

Response time histogram:
 0.035 [1] |
 0.069 [894] |■■■■■■
 0.103 [6193] |■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■
 0.137 [2158] |■■■■■■■■■■■■■■
 0.171 [464] |■■■
 0.205 [118] |■
 0.238 [84] |■
 0.272 [56] |
 0.306 [29] |
 0.340 [2] |
 0.374 [1] |

Latency distribution:
 10% in 0.0702 secs
 25% in 0.0802 secs
 50% in 0.0917 secs
 75% in 0.1056 secs
 90% in 0.1266 secs
 95% in 0.1510 secs
 99% in 0.2334 secs

Details (average, fastest, slowest):
 DNS+dialup: 0.0016 secs, 0.0350 secs, 0.3740 secs
 DNS-lookup: 0.0008 secs, 0.0000 secs, 0.1045 secs
 req write: 0.0001 secs, 0.0000 secs, 0.0716 secs
 resp wait: 0.0896 secs, 0.0320 secs, 0.2326 secs
 resp read: 0.0054 secs, 0.0014 secs, 0.1429 secs

Status code distribution:
 [200] 10000 responses

更多用法请自行执行hey -h查看帮助使用。

提示:

hey可以很方便的对网站进行压测,并返回详细统计结果。另外压测工具会对服务器造成一定压力,相当于对网站发起CC攻击,因此请勿滥用。

hey项目地址:https://github.com/rakyll/hey

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