用SQUID加速WEB服务器。效果不明显

Question

1301036054.577  18008 192.168.2.10 TCP_MISS/200 5345 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html
1301036054.607  17930 192.168.2.10 TCP_MISS/200 5344 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html
1301036054.682  19630 192.168.2.10 TCP_MISS/200 5345 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html
1301036054.696  18018 192.168.2.10 TCP_MISS/200 5345 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html
1301036054.747  18069 192.168.2.10 TCP_MISS/200 5345 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html
1301036054.755  18077 192.168.2.10 TCP_MISS/200 5345 GET http://www.yjlbylw.com/home.php - FIRST_UP_PARENT/10.1.1.100 text/html

从日志上来看，代理服务器还是去web 服务器获取的页面。SQUID并没有发挥缓存的作用。该如何调整。谢谢。