apache已经带了一个测试工具: ab
一般把apache压力测试称为AB测试. ab工具的位置在apache2的bin目录里.ab的使用是这样的:
./ab: wrong number of arguments Usage: ./ab [options] [http://]hostname[:port]/path Options are: -n requests Number of requests to perform -c concurrency Number of multiple requests to make -t timelimit Seconds to max. wait for responses -p postfile File containing data to POST -T content-type Content-type header for POSTing -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 -h Display usage information (this message)
参数很多，我们一般用用 -c 和 -n 参数就可以了. 例如:
./ab -c 100 -n 10000 http://127.0.0.1/index.php 这个表示同时处理100个请求并运行10000次index.php文件.