Apache压力测试

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.