squid网关服务器透明代理cache hit命中率很低，网关服务器丢包率也很高
# squidclient -h host-squid-01 -p 3128 mgr:infoHTTP/1.0 200 OK
Server: squid/2.6.STABLE21
Date: Tue, 26 Oct 2010 01:55:42 GMT
Content-Type: text/plain
Expires: Tue, 26 Oct 2010 01:55:42 GMT
Last-Modified: Tue, 26 Oct 2010 01:55:42 GMT
X-Cache: MISS from jrcz-gw-01
X-Cache-Lookup: MISS from jrcz-gw-01:3128
Via: 1.0 host-squid-01:3128 (squid/2.6.STABLE21)
Proxy-Connection: close
Squid Object Cache: Version 2.6.STABLE21
Start Time: Mon, 25 Oct 2010 05:00:00 GMT
Current Time: Tue, 26 Oct 2010 01:55:42 GMT
Connection information for squid:
Number of clients accessing cache: 43
Number of HTTP requests received: 213934
Number of ICP messages received: 0
Number of ICP messages sent: 0
Number of queued ICP replies: 0
Request failure ratio: 0.00
Average HTTP requests per minute since start: 170.4
Average ICP messages per minute since start: 0.0
Select loop called: 3648381 times, 20.651 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 23.9%, 60min: 24.2%
Byte Hit Ratios: 5min: 13.7%, 60min: 11.3%
Request Memory Hit Ratios: 5min: 21.9%, 60min: 14.3%
Request Disk Hit Ratios: 5min: 38.6%, 60min: 36.5%
Storage Swap size: 1776760 KB
Storage Mem size: 65488 KB
Mean Object Size: 15.78 KB
Requests given to unlinkd: 7510
Median Service Times (seconds)5 min 60 min:
HTTP Requests (All): 0.220040.35832
Cache Misses: 0.358320.58309
Cache Hits: 0.000910.00179 //怎么我的squid透明代理命中率这么低啊，只有0.091%－－0.179%？
Near Hits: 0.220040.44492
Not-Modified Replies:0.000910.00091
DNS Lookups: 0.119260.36346
ICP Queries: 0.000000.00000
Resource usage for squid:
UP Time: 75342.146 seconds
CPU Time: 334.829 seconds
CPU Usage: 0.44%
CPU Usage, 5 minute avg: 1.70%
CPU Usage, 60 minute avg: 2.01%
Process Data Segment Size via sbrk(): 101516 KB
Maximum Resident Size: 0 KB
Page faults with physical i/o: 1
Memory usage for squid via mallinfo():
Total space in arena:101648 KB
Ordinary blocks: 100744 KB 290 blks
Small blocks: 0 KB 0 blks
Holding blocks: 244 KB 1 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 903 KB
Total in use: 100988 KB 99%
Total free: 903 KB 1%
Total size: 101892 KB
Memory accounted for:
Total accounted: 91028 KB
memPoolAlloc calls: 28820306
memPoolFree calls: 28166509
File descriptor usage for squid:
Maximum number of file descriptors: 1024
Largest file desc currently in use: 538
Number of file desc currently in use:320
Files queued for open: 0
Available number of file descriptors:704
Reserved number of file descriptors: 100
Store Disk files open: 0
IO loop method: epoll
Internal Data Structures:
113092 StoreEntries
13297 StoreEntries with MemObjects
13261 Hot Object Cache Items
112595 on-disk objects
***************************************************************
Cache Hits: 0.000910.00179 //怎么我的squid透明代理命中率这么低啊，只有0.091%－－0.179%？
大虾帮忙给分析一下，谢谢！~ 昨天把squid-graph装上，从页面监控流量显示cache_hit的命中率，好象比昨天要高一些，基本在30%左右！！
找到cach_hit命中率低的原因了：我的squid.conf配置文件中，cache_mem 64 MB，这个值设置的太低，网上建议应该设置为内存的1/3大小，之后，将其改为cache_mem 600 MB后，用命令： squidclient -h host-squid-01 -p 3128 mgr:info结果如下：
Median Service Times (seconds)5 min 60 min:
HTTP Requests (All): 0.127830.13498
Cache Misses: 0.245240.30459
Cache Hits: 0.008650.00562//cach_hit命中率86.5%
Near Hits: 0.177110.18699
Not-Modified Replies:0.002860.00286
DNS Lookups: 0.042370.04639
ICP Queries: 0.000000.00000 我是跟你一定的问题，我的代理跟你一样，是为内网提供服务的。但是还是出现你一样问题，我的本身已经是512MB了，是什么原因呢
所谓命中率低是不是，和丢包一样的情况？？？？
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