Webbench最多可以模拟3万个并发连接去测试网站的负载能力。
1、安装
wget http://www.linuxidc.com/system/systembak/webbench/webbench-1.5.tar.gz
tar -xzf webbench-1.5.tar.gz
make && make install
 
 
2、用法
[root@con webbench-1.5]# webbench
webbench [option]... URL
  -f|--force               Don't wait for reply from server.
  -r|--reload              Send reload request - Pragma: no-cache.
  -t|--time <sec>          Run benchmark for <sec> seconds. Default 30.
  -p|--proxy <server:port> Use proxy server for request.
  -c|--clients <n>         Run <n> HTTP clients at once. Default one.
  -9|--http09              Use HTTP/0.9 style requests.
  -1|--http10              Use HTTP/1.0 protocol.
  -2|--http11              Use HTTP/1.1 protocol.
  --get                    Use GET request method.
  --head                   Use HEAD request method.
  --options                Use OPTIONS request method.
  --trace                  Use TRACE request method.
  -?|-h|--help             This information.
  -V|--version             Display program version.
 
 
3、使用
[root@con webbench-1.5]# webbench -c 10000 -t 5 http://app.lynn.com/
Webbench - Simple Web Benchmark 1.5
Copyright (c) Radim Kolar 1997-2004, GPL Open Source Software.
 
Benchmarking: GET http://app.lynn.com/
10000 clients, running 5 sec.
 
Speed=125256 pages/min, 71896752 bytes/sec.
Requests: 10438 susceed, 0 failed.