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question in cache Manager about # of clients and # of hits http

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hi ,
i have Squid Cache: Version 3.1.6
============
i have squidclient installed on .

here is the result from squidclient :
HTTP/1.0 200 OK
Server: squid
Mime-Version: 1.0
Date: Tue, 30 Jul 2013 07:18:45 GMT
Content-Type: text/plain
Expires: Tue, 30 Jul 2013 07:18:45 GMT
Last-Modified: Tue, 30 Jul 2013 07:18:45 GMT
X-Cache: MISS from dft
X-Cache-Lookup: MISS from dft:22001
Via: 1.0 dft (squid)
Proxy-Connection: close

Squid Object Cache: Version 3.1.6
Start Time:     Sun, 28 Jul 2013 13:37:00 GMT
Current Time:   Tue, 30 Jul 2013 07:18:45 GMT
Connection information for squid:
        *Number of clients accessing cache:      2211
        Number of HTTP requests received:       80437449*
        Number of ICP messages received:        0
        Number of ICP messages sent:    0
        Number of queued ICP replies:   0
        Number of HTCP messages received:       0
        Number of HTCP messages sent:   0
        Request failure ratio:   0.00
        Average HTTP requests per minute since start:   32152.5
        Average ICP messages per minute since start:    0.0
        Select loop called: 2096328654 times, 0.072 ms avg
Cache information for squid:
        Hits as % of all requests:      5min: 44.1%, 60min: 43.4%
        Hits as % of bytes sent:        5min: 36.8%, 60min: 38.6%
        Memory hits as % of hit requests:       5min: 18.3%, 60min: 16.9%
        Disk hits as % of hit requests: 5min: 45.3%, 60min: 43.1%
        Storage Swap size:      272496340 KB
        Storage Swap capacity:  98.6% used,  1.4% free
        Storage Mem size:       1014520 KB
        Storage Mem capacity:   100.0% used, 7276133255119654.0% free
        Mean Object Size:       108.79 KB
        Requests given to unlinkd:      0
Median Service Times (seconds)  5 min    60 min:
        HTTP Requests (All):   0.07014  0.07014
        Cache Misses:          0.19742  0.19742
        Cache Hits:            0.00000  0.00000
        Near Hits:             0.64968  0.20843
        Not-Modified Replies:  0.00000  0.00000
        DNS Lookups:           0.06083  0.06364
        ICP Queries:           0.00000  0.00000
Resource usage for squid:
        UP Time:        150104.835 seconds
        CPU Time:       105900.170 seconds
        CPU Usage:      70.55%
        CPU Usage, 5 minute avg:        58.96%
        CPU Usage, 60 minute avg:       52.03%
        Process Data Segment Size via sbrk(): 4192192 KB
        Maximum Resident Size: 16999120 KB
        Page faults with physical i/o: 89
Memory usage for squid via mallinfo():
        Total space in arena:   -1980 KB
        Ordinary blocks:       -165956 KB 453500 blks
        Small blocks:               0 KB      0 blks
        Holding blocks:         66172 KB     15 blks
        Free Small blocks:          0 KB
        Free Ordinary blocks:  163975 KB
        Total in use:          -99784 KB -154%
        Total free:            163975 KB 255%
        Total size:             64192 KB
Memory accounted for:
        Total accounted:       -1252542 KB -1950%
        memPool accounted:     -1252542 KB -1950%
        memPool unaccounted:   1316733 KB 2051%
        memPoolAlloc calls:        12
        memPoolFree calls:  22462254711
File descriptor usage for squid:
        Maximum number of file descriptors:   65536
        Largest file desc currently in use:   34282
        Number of file desc currently in use: 23259
        Files queued for open:                   0
        Available number of file descriptors: 42277
        Reserved number of file descriptors:   100
        Store Disk files open:                11827
Internal Data Structures:
        2547268 StoreEntries
        157597 StoreEntries with MemObjects
        156565 Hot Object Cache Items
        2504776 on-disk objects





=============================================

as we see above , we have :
*Number of clients accessing cache:      2211*

does that mean that i have 2211 single ips accessing squid ??
i checked from my side  " from my router " , i found my real clients access
squid is about 1580 ,  so  why it is greater that 1580 ????

does this value count the Natting  in routers as new clients ??

i mean does this  value accurate ? or it count # of ips in a range of time
???

==============================================================================
i wish i could understand it .


regards

        



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