1、安装测试套件
apt-get install apache2-utils
2、ab 命令说明
Usage: ab [options] [http[s]://]hostname[:port]/path Options are: //总的请求数 -n requests Number of requests to perform宅 //一次同时并发的请求数 总的请求数(n)=次数*一次并发数(c) -c concurrency Number of multiple requests to make -t timelimit Seconds to max. wait for responses -b windowsize Size of TCP send/receive buffer, in bytes -p postfile File containing data to POST. Remember also to set -T -u putfile File containing data to PUT. Remember also to set -T -T content-type Content-type header for POSTing, eg. 'application/x-www-form-urlencoded' Default is 'text/plain' -v verbosity How much troubleshooting info to print -w Print out results in HTML tables -i Use HEAD instead of GET -x attributes String to insert as table attributes -y attributes String to insert as tr attributes -z attributes String to insert as td or th attributes -C attribute Add cookie, eg. 'Apache=1234. (repeatable) -H attribute Add Arbitrary header line, eg. 'Accept-Encoding: gzip' 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 -V Print version number and exit -k Use HTTP KeepAlive feature -d Do not show percentiles served table. -S Do not show confidence estimators and warnings. -g filename Output collected data to gnuplot format file. -e filename Output CSV file with percentages served -r Don't exit on socket receive errors. -h Display usage information (this message) -Z ciphersuite Specify SSL/TLS cipher suite (See openssl ciphers) -f protocol Specify SSL/TLS protocol (SSL2, SSL3, TLS1, or ALL)
3、ab命令实例
ab -c10 -n1000 http://localhost/index.php
4、结果和分析
Document Path: /index.php Document Length: 10 bytes Concurrency Level: 10 Time taken for tests: 0.088 seconds Complete requests: 1000 Failed requests: 0 Total transferred: 198000 bytes HTML transferred: 10000 bytes Requests per second: 11365.83 [#/sec] (mean) Time per request: 0.880 [ms] (mean) Time per request: 0.088 [ms] (mean, across all concurrent requests) Transfer rate: 2197.69 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 0 0 0.1 0 1 Processing: 0 1 0.3 1 4 Waiting: 0 1 0.3 0 4 Total: 1 1 0.3 1 4 ERROR: The median and mean for the waiting time are more than twice the standard deviation apart. These results are NOT reliable. Percentage of the requests served within a certain time (ms) 50% 1 66% 1 75% 1 80% 1 90% 1 95% 1 98% 2 99% 2 100% 4 (longest request)
5、测试结论中常用的一个指标就是qps，也就是每秒钟响应了好多个请求
Requests per second: 11365.83 [#/sec] (mean)