~ ab -V This is ApacheBench, Version 2.3 <$Revision: 1879490 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
~ ab -h Usage: ab [options] [http[s]://]hostname[:port]/path Options are: -n requests Number of requests to perform 请求次数 -c concurrency Number of multiple requests to make at a time 并发数 -t timelimit Seconds to max. to spend on benchmarking 最大秒数，几秒之后结束 This implies -n 50000 -s timeout Seconds to max. wait for each response 每次请求超时时间 Default is 30 seconds -b windowsize Size of TCP send/receive buffer, in bytes -B address Address to bind to when making outgoing connections -p postfile File containing data to POST. Remember also to set -T 请求包含的post文件，与-T一起使用，设置-p就不需要设置-m -u putfile File containing data to PUT. Remember also to set -T -T content-type Content-type header to use for POST/PUT data, eg. 设置content-type 'application/x-www-form-urlencoded' Default is 'text/plain' -v verbosity How much troubleshooting info to print 显示详细程度。默认1，显示请求总统计；2显示响应头响应数据；3显示响应状态码；4更多信息 -w Print out results in HTML tables 以html表格的元素显示测试结果 -i Use HEAD instead of GET 执行HEAD请求，而不是GET请求 -x attributes String to insert as table attributes 设置 table 属性的字符串 -y attributes String to insert as tr attributes 设置 tr 属性的字符串 -z attributes String to insert as td or th attributes 设置 td 属性的字符串 -C attribute Add cookie, eg. 'Apache=1234'. (repeatable) 添加cookie -H attribute Add Arbitrary header line, eg. 'Accept-Encoding: gzip' 添加额外头信息 Inserted after all normal header lines. (repeatable) -A attribute Add Basic WWW Authentication, the attributes are a colon separated username and password. -P attribute Add Basic Proxy Authentication, the attributes are a colon separated username and password. -X proxy:port Proxyserver and port number to use 对请求使用代理服务器 -V Print version number and exit 打印版本号 -k Use HTTP KeepAlive feature 打开HTTP KeepAlive功能，在一个HTTP会话中执行多个请求，默认不启用 -d Do not show percentiles served table. -S Do not show confidence estimators and warnings. -q Do not show progress when doing more than 150 requests -l Accept variable document length (use this for dynamic pages) -g filename Output collected data to gnuplot format file. 测试结果写入gnuplot格式文件，例如Excel -e filename Output CSV file with percentages served 测试结果写入CSV格式文件 -r Don't exit on socket receive errors. -m method Method name 方法名 -h Display usage information (this message) 打印帮助 -I Disable TLS Server Name Indication (SNI) extension -Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers) -f protocol Specify SSL/TLS protocol (TLS1, TLS1.1, TLS1.2 or ALL) -E certfile Specify optional client certificate chain and private key
~ ab -n 1000 -c 10 https://www.baidu.com/ This is ApacheBench, Version 2.3 <$Revision: 1879490 $> Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Licensed to The Apache Software Foundation, http://www.apache.org/
Server Software: BWS/1.1 Server Hostname: www.baidu.com Server Port: 443 SSL/TLS Protocol: TLSv1.2,ECDHE-RSA-AES128-GCM-SHA256,2048,128 Server Temp Key: ECDH P-256 256 bits TLS Server Name: www.baidu.com
Concurrency Level: 10 并发个数 Time taken for tests: 6.131 seconds 测试所花时间 Complete requests: 1000 返回成功的请求数 Failed requests: 0 失败的请求数 Total transferred: 1110891 bytes 所有请求响应的数据总和 HTML transferred: 227000 bytes 所有请求的数据总和 Requests per second: 163.11 [#/sec] (mean) 吞吐量，平均每秒完成的请求数 Time per request: 61.307 [ms] (mean) 每个请求花的时间 Time per request: 6.131 [ms] (mean, across all concurrent requests) 服务器平均等待时间 Transfer rate: 176.96 [Kbytes/sec] received 传输率，单位时间从服务器获取的数据长度
Connection Times (ms) min mean[+/-sd] median max Connect: 28 46 8.3 45 85 Processing: 8 15 6.6 13 76 Waiting: 8 14 5.6 12 76 Total: 37 60 10.9 58 135
Percentage of the requests served within a certain time (ms) 50% 58 66% 62 75% 65 80% 68 90% 75 90%的请求在75ms内 95% 81 98% 86 99% 99 100% 135 (longest request)
如果是POST请求，需要发送参数
1
ab -n 1000 -c 10 -T 'application/json' -p trigger.txt http://www.xxx.com/posturl