[Web] 求助：关于apache的80端口问题

[weixin_38049216]

网站绑定了多个端口，绑定的端口都可以访问网站，访问80端口时异常的慢，用其他的端口都比较正常。
网络的流量占用不大，机器的运行情况如下：
last pid: 25069; load averages: 0.15, 1.06, 1.35 up 0+21:40:09 16:09:19
291 processes: 1 running, 290 sleeping
CPU states: 0.8% user, 0.0% nice, 1.6% system, 0.0% interrupt, 97.7% idle
Mem: 180M Active, 279M Inact, 118M Wired, 24K Cache, 112M Buf, 425M Free
Swap: 2048M Total, 2048M Free

PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
168 mysql 2 0 37976K 26324K poll 55:50 5.47% 5.47% mysqld
25069 zhou 28 0 2252K 1188K RUN 0:00 2.66% 0.88% top
344 root 2 0 4544K 3676K select 0:20 0.00% 0.00% httpd
124 root 2 0 1820K 1556K select 0:03 0.00% 0.00% sendmail
24909 nobody 2 0 4880K 4224K poll 0:02 0.00% 0.00% httpd
24897 nobody 2 0 4892K 4232K poll 0:01 0.00% 0.00% httpd
24910 nobody 2 0 4864K 4204K poll 0:01 0.00% 0.00% httpd
24876 nobody 2 0 4912K 4216K poll 0:01 0.00% 0.00% httpd
164 root 2 0 2300K 1892K select 0:01 0.00% 0.00% proftpd
24871 nobody 2 0 4972K 4276K poll 0:01 0.00% 0.00% httpd
24833 nobody 2 0 4912K 4212K poll 0:01 0.00% 0.00% httpd
24772 nobody 2 0 4892K 4200K poll 0:01 0.00% 0.00% httpd
24741 nobody 2 0 4868K 4172K poll 0:01 0.00% 0.00% httpd
24801 nobody 2 0 4948K 4220K poll 0:01 0.00% 0.00% httpd
24702 nobody 2 0 4852K 4192K poll 0:01 0.00% 0.00% httpd
24682 nobody 2 0 4948K 4252K poll 0:01 0.00% 0.00% httpd
24793 nobody 2 0 4868K 4168K poll 0:01 0.00% 0.00% httpd
24834 nobody 2 0 4944K 4248K poll 0:01 0.00% 0.00% httpd
24700 nobody 2 0 4872K 4176K poll 0:01 0.00% 0.00% httpd
24896 nobody 2 0 4876K 4176K poll 0:01 0.00% 0.00% httpd
24920 nobody 2 0 4848K 4148K poll 0:01 0.00% 0.00% httpd
24729 nobody 2 0 4864K 4164K poll 0:01 0.00% 0.00% httpd
24796 nobody 2 0 4856K 4160K poll 0:01 0.00% 0.00% httpd
24832 nobody 2 0 4908K 4216K poll 0:01 0.00% 0.00% httpd
89 root 2 0 984K 712K select 0:01 0.00% 0.00% syslogd
24830 nobody 2 0 4856K 4160K poll 0:01 0.00% 0.00% httpd
24732 nobody 2 0 4912K 4212K poll 0:01 0.00% 0.00% httpd
24889 nobody 2 0 4932K 4232K poll 0:01 0.00% 0.00% httpd
24695 nobody 2 0 4868K 4168K poll 0:01 0.00% 0.00% httpd
24789 nobody 2 0 4912K 4212K poll 0:01 0.00% 0.00% httpd


netstat状态如下：
Active Internet connections
Proto Recv-Q Send-Q Local Address Foreign Address (state)
tcp4 408 0 www.ctf 202.102.58.7.2054 ESTABLISHED
tcp4 0 13784 www.mit-ml-dev 202.207.250.251.2672 ESTABLISHED
tcp4 0 0 www.ctf 218.22.84.59.1280 CLOSE_WAIT
tcp4 405 0 www.ctf 219.140.255.41.8759 ESTABLISHED
tcp4 0 0 www.http 61.132.134.36.22930 CLOSE_WAIT
tcp4 429 0 www.http 219.138.57.186.40715 ESTABLISHED
tcp4 0 864 www.hosts2-ns 218.22.154.34.18983 ESTABLISHED
tcp4 369 0 www.ctf 218.79.89.66.2607 ESTABLISHED
tcp4 0 193 www.xfer 203.192.1.86.4777 ESTABLISHED
tcp4 0 883 www.mfcobol 218.79.89.66.2604 ESTABLISHED
tcp4 435 0 www.ctf 218.24.219.181.2983 ESTABLISHED
tcp4 408 0 www.ctf 220.176.193.28.50795 ESTABLISHED
tcp4 285 0 www.http 218.68.238.200.1167 ESTABLISHED
tcp4 0 0 www.hosts2-ns 218.17.172.46.2272 TIME_WAIT
tcp4 424 0 www.ctf 218.1.137.129.10006 ESTABLISHED
tcp4 451 0 www.http 61.138.200.113.21959 ESTABLISHED
tcp4 0 4038 www.hosts2-ns 218.17.172.46.2271 FIN_WAIT_1
tcp4 480 0 www.ctf 61.149.83.55.2827 ESTABLISHED
tcp4 322 0 www.http 218.25.38.50.1442 ESTABLISHED
tcp4 413 0 www.http 218.14.146.116.1505 ESTABLISHED
tcp4 325 0 www.http 218.62.105.194.1831 ESTABLISHED
tcp4 0 0 www.hosts2-ns 218.69.228.223.1788 ESTABLISHED
tcp4 319 0 www.http 61.131.2.99.53866 ESTABLISHED
tcp4 326 0 www.http 61.53.73.71.37279 ESTABLISHED
tcp4 0 0 www.hosts2-ns 218.7.52.74.1835 ESTABLISHED
tcp4 0 0 www.mit-ml-dev 218.11.209.226.1143 ESTABLISHED
tcp4 334 0 www.ctf 219.159.161.60.1858 ESTABLISHED
tcp4 0 0 www.hosts2-ns 61.186.167.179.19828 ESTABLISHED
tcp4 465 0 www.ctf boss.ittc.ku.edu.1469 ESTABLISHED
tcp4 319 0 www.http 61.144.50.218.2631 ESTABLISHED
tcp4 0 0 www.hosts2-ns 218.17.172.46.2270 TIME_WAIT
tcp4 349 0 www.http 61.187.54.134.58116 ESTABLISHED
tcp4 338 0 www.ctf 218.19.115.87.50255 ESTABLISHED
tcp4 326 0 www.ctf 218.19.115.87.50283 ESTABLISHED
tcp4 331 0 www.http 218.2.13.143.52040 ESTABLISHED  

有谁知道什么原因吗？