发挥Squid优势,TCP_HIT变成TCP_MEM_HIT

原创

简辉1989 2011-12-15 18:22:47 博主文章分类：squid学习 ©著作权

文章标签 职场 squid 休闲 TCP_MEM_HIT TCP_HIT 文章分类 运维

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192.168.10.139 - - [15/Dec/2011:16:49:37 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95900 "-" "Wget/1.11.4 Red Hat modified" TCP_HIT:NONE

192.168.10.139 - - [15/Dec/2011:16:49:38 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95900 "-" "Wget/1.11.4 Red Hat modified" TCP_HIT:NONE

192.168.10.139 - - [15/Dec/2011:16:49:39 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95900 "-" "Wget/1.11.4 Red Hat modified" TCP_HIT:NONE

查看squid日志状态全是TCP_HIT,全被磁盘缓存住了,没有缓存到内存里面.查看了下squid的默认配置文件才发现

maximum_object_size_in_memory 8 KB

原来squid默认只会把小于8 KB的文件缓存到内存中.du命令看了下shufa.jpg有100K.

把此参数修改后全TCP_MEM_HIT了...^^

192.168.10.139 - - [15/Dec/2011:17:13:36 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95888 "-" "Wget/1.11.4 Red Hat modified" TCP_MEM_HIT:NONE

192.168.10.139 - - [15/Dec/2011:17:13:37 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95888 "-" "Wget/1.11.4 Red Hat modified" TCP_MEM_HIT:NONE

192.168.10.139 - - [15/Dec/2011:17:13:38 +0800] "GET http://www.jian.com/p_w_picpaths/shufa.jpg HTTP/1.0" 200 95888 "-" "Wget/1.11.4 Red Hat modified" TCP_MEM_HIT:NONE

另外maximum_object_size 4096 KB参数指squid默认缓存单个文件的最大值.超出的文件会返回TCP_MISS.根据需要可以适当调整该参数.