WebBench
webbench最多可以模拟3万个并发连接去测试网站的负载能力，个人感觉要比Apache自带的ab压力测试工具好，安装使用也特别方便。
1、适用系统：Linux
2、编译安装：
wget http://blog.s135.com/soft/linux/webbench/webbench-1.5.tar.gz tar zxvf webbench-1.5.tar.gz cd webbench-1.5 make && make install
3、使用： make && make install 报错
ctags *.c /bin/sh: ctags: command not found make: [tags] Error 127 (ignored) install -s webbench /usr/local/bin install -m 644 webbench.1 /usr/local/man/man1 install: cannot create regular file `/usr/local/man/man1′: No such file or directory make: *** [install] Error 1
解决办法：
[root@localhost webbench-1.5]# mkdir /usr/local/man [root@localhost webbench-1.5]# make && make install [root@localhost webbench-1.5]# webbench -c 500 -t 30 http://127.0.0.1/index.html
结果：
Webbench – Simple Web Benchmark 1.5 Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software. Benchmarking: GET http://127.0.0.1/phpinfo.php 500 clients, running 30 sec. Speed=10052 pages/min, 7572446 bytes/sec. Requests: 5026 susceed, 0 failed.
在安装编译webbench的时候，出现如下错误信息
ctags *.c /bin/sh: ctags: command not found make: [tags] Error 127 (ignored)
意思是说缺少ctags命令,我没有装了,运行以下命令即可
yum install ctags
PS:关于ctags信息,可以运行命令了解一下
NAME ctags – Generate tag files for source code SYNOPSIS ctags [options] [file(s)] etags [options] [file(s)] DESCRIPTION The ctags and etags programs (hereinafter collectively referred to as ctags, except where distinguished) generate an index (or “tag”) file for a variety of language objects found in file(s). This tag file allows these items to be quickly and easily located by a text editor or other utility. A “tag” signifies a language object for which an index entry is available (or, alternatively, the index entry created for that object). Alternatively, ctags can generate a cross reference file which lists, in human readable form, information about the various source objects found in a set of language files. Tag index files are supported by numerous editors, which allow the user to locate the object associated with a name appearing in a source file and jump to the file and line which defines the name. Those known about at the time of this release are: Vi(1) and its derivatives (e.g. Elvis, Vim, Vile, Lemmy), CRiSP, Emacs, FTE (Folding Text Editor), JED, jEdit, Mined, NEdit (Nirvana Edit), TSE (The SemWare Editor), UltraEdit, WorkSpace, X2, Zeus Ctags is capable of generating different kinds of tags for each of many different languages. For a complete list of supported languages, the names by which they are recognized, and the kinds of tags which are generated for each, see the –list-languages and –list-kinds options.