1、基本的使用方法
*取得squidClient的帮助：squidclient -p 80 mgr:menu
*取得squid运行状态信息： squidclient -p 80 mgr:info
*取得squid内存使用情况： squidclient -p 80 mgr:mem
*取得squid已经缓存的列表： squidclient -p 80 mgr:objects use it carefully,it may crash
*取得squid的磁盘使用情况： squidclient -p 80 mgr:diskd
*强制更新某个url：squidclient -p 80 -m PURGE
*更多的请查看：squidclient -h 或者 squidclient -p 80 mgr:
2、* 如何得知 squid 执行中的状态？
最简单的方式便是透过浏览器来观察。squid 本身提供一只 cgi 程式，档名为cachemgr.cgi，位于/usr/local/squid/libexec中，squid 安装完后将它复制到 Apache 下的 cgi-bin 这个目录下即可使用。
要察看Cache Manager提供的资讯时，请在浏览器的位址列中键入
当然,我更加喜欢使用下面的命令行方法
squidclient -t 1 -h localhost -p 80 mgr:info 这样也行
3、下面是一些基本内容
Squid Object Cache: Version 2.6 //Squid的版本
HTTP/1.0 200 OK
Date: Tue, 11 Mar 2008 16:08:14 GMT
Content-Type: text/plain
Expires: Tue, 11 Mar 2008 16:08:14 GMT
Last-Modified: Tue, 11 Mar 2008 16:08:14 GMT
Connection: close
Squid Object Cache: Version 2.6.STABLE6
Start Time: Tue, 11 Mar 2008 10:21:47 GMT
Current Time: Tue, 11 Mar 2008 16:08:14 GMT
Connection information for squid:
Number of clients accessing cache: 2023 使用proxy的电脑数量
Number of HTTP requests received: 81787 客户端http要求数量
Number of ICP messages received: 0 接受到的icp query数量
Number of ICP messages sent: 0 发出icp query数量
Number of queued ICP replies: 0
Request failure ratio: 0.00
Average HTTP requests per minute since start: 236.1 每分钟http request的数量
Average ICP messages per minute since start: 0.0
Select loop called: 24789642 times, 0.839 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 99.6%, 60min: 98.7% Cache Request命中率
Byte Hit Ratios: 5min: 100.0%, 60min: 100.0% Cache Byte命中率
Request Memory Hit Ratios: 5min: 1.6%, 60min: 1.2%
Request Disk Hit Ratios: 5min: 82.0%, 60min: 90.5%
Storage Swap size: 7723212 KB 存放cache的磁碟使用量
Storage Mem size: 7992 KB 存放cache的记忆体使用量
Mean Object Size: 264.01 KB
Requests given to unlinkd: 279
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 2.94900 3.46762
Cache Misses: 0.03427 0.03427
Cache Hits: 5.06039 4.79440
Near Hits: 0.30459 0.35832
Not-Modified Replies: 0.00179 0.00179
DNS Lookups: 0.00000 0.00000
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 20787.011 seconds
CPU Time: 128.799 seconds
CPU Usage: 0.62%
CPU Usage, 5 minute avg: 0.44%
CPU Usage, 60 minute avg: 0.51%
Process Data Segment Size via sbrk(): 34292 KB
Maximum Resident Size: 0 KB
Page faults with physical i/o: 0
Memory usage for squid via mallinfo():
Total space in arena: 34424 KB
ordinary blocks: 27031 KB 8599 blks
Small blocks: 0 KB 0 blks
Holding blocks: 6152 KB 2 blks
Free Small blocks: 0 KB
Free ordinary blocks: 7392 KB
Total in use: 33183 KB 82%
Total free: 7392 KB 18%
Total size: 40576 KB
Memory accounted for: 记忆体使用状态
Total accounted: 21777 KB
memPoolAlloc calls: 15446992
memPoolFree calls: 15337015
File descriptor usage for squid:
Maximum number of file descriptors: 16384 系统最大file descriptor数
Largest file desc currently in use: 1165 目前使用file descriptor最大值
Number of file desc currently in use: 571 目前正在使用的file descriptor数
Files queued for open: 0
Available number of file descriptors: 15813
Reserved number of file descriptors: 100
Store Disk files open: 266
IO loop method: epoll
Internal Data Structures:
29315 StoreEntries Cache中存放的快取档案数量
190 StoreEntries with MemObjects 记忆体斗的快取档案数量
176 Hot Object Cache Items 磁碟机中存放的快取档案数量
29253 on-disk objects
4、menu
mem Memory Utilization public
cbdata Callback Data Registry Contents public
events Event Queue public
config Current Squid Configuration hidden
ipcache IP Cache Stats and Contents public
fqdncache FQDN Cache Stats and Contents public
idns Internal DNS Statistics public
external_acl External ACL stats public
http_headers HTTP Header Statistics public
menu This Cachemanager Menu public
shutdown Shut Down the Squid Process hidden
offline_toggle Toggle offline_mode setting hidden
info General Runtime Information public
filedescriptors Process Filedescriptor Allocation public
objects All Cache Objects public
vm_objects In-Memory and In-Transit Objects public
openfd_objects Objects with Swapout files open public
pending_objects Objects being retreived from the network public
client_objects Objects being sent to clients public
io Server-side network read() size histograms public
counters Traffic and Resource Counters public
peer_select Peer Selection Algorithms public
digest_stats Cache Digest and ICP blob public
5min 5 Minute Average of Counters public
60min 60 Minute Average of Counters public
utilization Cache Utilization public
histograms Full Histogram Counts public
active_requests Client-side Active Requests public
store_digest Store Digest public
storedir Store Directory Stats public
store_check_cachable_stats storeCheckCachable() Stats public
store_io Store IO Interface Stats public
pconn Persistent Connection Utilization Histograms public
refresh Refresh Algorithm Statistics public
forward Request Forwarding Statistics public
client_list Cache Client List public
asndb AS Number Database public
server_list Peer Cache Statistics public
non_peers List of Unknown sites sending ICP messages public
