Actually...description of following...

From: Marc G. Fournier <>
Date: Fri, 15 Oct 1999 13:56:04 -0300 (ADT)

Is there a description anywhere of what the following all means? I can
figure out most of it, but some I'm not too sure of...if there is a URL
that I should be reading, just point me there and I'll
case there isn't, I'll highly with >> those that I'm not sure about...

Squid Object Cache: Version 2.2.STABLE4

 Start Time:
           Fri, 15 Oct 1999 11:36:37 GMT
 Current Time:
           Fri, 15 Oct 1999 16:38:56 GMT

Connection information for squid:
        Number of clients accessing cache: 875
        Number of HTTP requests received: 154585
        Number of ICP messages received: 0
        Number of ICP messages sent: 0
        Number of queued ICP replies: 0

>> ICP messages? those are 'intra-proxy requests', if I recall correctly?

        Request failure ratio: 0.00%
        HTTP requests per minute: 511.3

>> Is this an average since the server was started, or how many requests
>> over the last 60 seconds?

        ICP messages per minute: 0.0
        Select loop called: 1651221 times, 10.985 ms avg

>> Am I supposed to read anything out of this one? *raised eyebrow*

Cache information for squid:
        Request Hit Ratios: 5min: 52.2%, 60min: 65.2%
        Byte Hit Ratios: 5min: 25.8%, 60min: 28.9%
        Storage Swap size: 14866393 KB

>> Huh?

        Storage Mem size: 131064 KB

>> This is the 128MB that I set for 'cache_mem', right?

        Storage LRU Expiration Age: 365.00 days
        Mean Object Size: 12.61 KB
        Requests given to unlinkd: 5377
Median Service Times (seconds) 5 min 60 min:
        HTTP Requests (All): 0.28853 0.05331
        Cache Misses: 0.89858 1.17732
        Cache Hits: 0.03622 0.03427
        Near Hits: 0.42149 0.42149
        Not-Modified Replies: 0.01847 0.00767
        DNS Lookups: 0.03868 0.02809
        ICP Queries: 0.00000 0.00000
Resource usage for squid:
        UP Time: 18138.534 seconds
        CPU Time: 2616.660 seconds
        CPU Usage: 14.43%
        CPU Usage, 5 minute avg: 13.03%
        CPU Usage, 60 minute avg: 15.17%
        Maximum Resident Size: 267756 KB
        Page faults with physical i/o: 2
Memory accounted for:
        Total accounted: 234372 KB

>> Again, not sure what I'm supposed to read out of this one...

File descriptor usage for squid:
        Maximum number of file descriptors: 1064
        Largest file desc currently in use: 186
        Number of file desc currently in use: 143
        Files queued for open: 0

>> If this goes >0, then I assume I've hit the limit on the number of
>> file descriptors and requests to open files are pending? would it
>> not also be useful to have a 'Largest number of files queued for open'
>> in here? basically I'm thinking that if I look at this once a day,
>> and, at that time, its zero...but mid-day, we got this massive spike
>> of activity and that value went >0, it would be nice to know

        Available number of file descriptors: 921
        Reserved number of file descriptors: 100
        Store Disk files open: 7
Internal Data Structures:
        1179809 StoreEntries
         25583 StoreEntries with MemObjects
         25548 Hot Object Cache Items
        1179213 Filemap bits set
        1179209 on-disk objects

Marc G. Fournier
Senior Systems Administrator Acadia University

  "These are my opinions, which are not necessarily shared by my employer"
Received on Fri Oct 15 1999 - 11:04:09 MDT

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