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由于标准的ab只支持对单个uri进行压测，不满足实际需要，故做以下修改，使ab支持multi-url。
1、下载apache httpd相关源码包以及针对ab工具的patch包
wget https://mirrors.tuna.tsinghua.edu.cn/apache/apr/apr-1.6.5.tar.gz wget https://mirrors.tuna.tsinghua.edu.cn/apache/apr/apr-util-1.6.1.tar.gz wget https://mirrors.tuna.tsinghua.edu.cn/apache/httpd/httpd-2.4.37.tar.gz wget https://github.com/philipgloyne/apachebench-for-multi-url/archive/master.zip
注：httpd依赖于apr和apr-util
2、编译安装apr
tar -zxf apr-1.6.5.tar.gz cd apr-1.6.5 ./configure --prefix=/usr/local/apr make && make install
3、编译安装apr-util
tar -zxf apr-util-1.6.1.tar.gz cd apr-util-1.6.1 ./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr make && make install
4、替换httpd源码里面的ab.c文件
unzip master.zip tar -zxf httpd-2.4.37.tar.gz \cp ./apachebench-for-multi-url-master/ab.c ./httpd-2.4.37/support/
5、编译安装httpd
cd httpd-2.4.37
./configure \
--with-apr=/usr/local/apr \
--with-apr-util=/usr/local/apr-util \
--prefix=/usr/local/apache \
--sysconfdir=/etc/httpd24 \
--enable-so \
--enable-ssl \
--enable-cgi \
--enable-rewrite \
--with-zlib \
--with-pcre \
--with-mpm=prefork \
--enable-modules=most \
--enable-mpms-shared=all
make && make install
6、验证结果
#/usr/local/apache/bin/ab -h
usage: /usr/local/apache/bin/ab [options] [http[s]://]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
-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)
-l use url list file name, eg. url.txt
-z ciphersuite specify ssl/tls cipher suite (see openssl ciphers)
-f protocol specify ssl/tls protocol (ssl2, ssl3, tls1, or all)
可以看到ab已经支持-l参数（上面帮助信息的倒数第3行），大功告成。
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