go-wrk 是一个用Go语言实现的轻量级的http基准测试工具，类似于wrk（还有ab、siege），本文将简单介绍一下如何使用go-wrk实现接口的性能(压力)测试。
安装 go-wrk
代码语言：javascript复制go get github.com/adeven/go-wrkgo-wrk 选项说明
代码语言：javascript复制#./go-wrk --help
Usage of ./go-wrk:
-CA string
A PEM eoncoded CA's certificate file. (default "someCertCAFile")
-H string
the http headers sent separated by 'n' (default "User-Agent: go-wrk 0.1 benchmarknContent-Type: text/html;")
-b string
the http request body
-c int
the max numbers of connections used (default 100)
-cert string
A PEM eoncoded certificate file. (default "someCertFile")
-d string
dist mode
-f string
json config file
-i TLS checks are disabled
-k if keep-alives are disabled (default true)
-key string
A PEM encoded private key file. (default "someKeyFile")
-m string
the http request method (default "GET")
-n int
the total number of calls processed (default 1000)
-p string
the http request body data file
-r in the case of having stream or file in the response,
it reads all response body to calculate the response size
-s string
if specified, it counts how often the searched string s is contained in the responses
-t int
the numbers of threads used (default 1)使用
使用方法同wrk类似，基本格式如下：
代码语言：javascript复制go-wrk [flags] url常用的参数：
代码语言：javascript复制-H="User-Agent: go-wrk 0.1 bechmarknContent-Type: text/html;": 由'n'分隔的请求头
-c=100: 使用的最大连接数
-k=true: 是否禁用keep-alives
-i=false: if TLS security checks are disabled
-m="GET": HTTP请求方法
-n=1000: 请求总数
-t=1: 使用的线程数
-b="" HTTP请求体
-s="" 如果指定，它将计算响应中包含搜索到的字符串s的频率执行测试：
代码语言：javascript复制# 8个线程，400个连接， 模拟10w次请求
./go-wrk -c=400 -t=8 -n=100000 "http://localhost:8082/test/query?lat=39.915&lng=116.404"输出结果：
代码语言：javascript复制==========================BENCHMARK==========================
URL: http://localhost:8082/test/query?lat=39.915&lng=116.404
Used Connections: 400
Used Threads: 8
Total number of calls: 100000
===========================TIMINGS===========================
Total time passed: 99.46s
Avg time per request: 395.89ms
Requests per second: 1005.39
Median time per request: 368.22ms
99th percentile time: 775.90ms
Slowest time for request: 1479.00ms
=============================DATA=============================
Total response body sizes: 501200000
Avg response body per request: 5012.00 Byte
Transfer rate per second: 5038989.99 Byte/s (5.04 MByte/s)
==========================RESPONSES==========================
20X Responses: 100000 (100.00%)
30X Responses: 0 (0.00%)
40X Responses: 0 (0.00%)
50X Responses: 0 (0.00%)
Errors: 0 (0.00%)结果解释： 关于接口/test/query，
- 每秒可以处理1005次请求(即 QPS)；
- 每秒传输5.04MB数据(吞吐量)；
- 响应码为20x开头的请求为 100%, 即没有发生业务之外的错误(比如 502);
- � 的请求的平均处理时间为775.90ms。
- 其他的一些数据也可以比较直观的看到，比如测试总用时和最长的耗时等。
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](https://blog.csdn.net/moxiaomomo/article/details/107851892)
