Squid proxy hit rate
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Are there any reports generated which show the hit rate for the squid proxy server I have installed?
And are there any tips on increasing the hit rate? …Presumably increasing cache size... I have 20GB. How can I tell if increasing this will be effective?
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Shell in and run:
squidclient -h IP_Address -p Port mgr:info
where IP_Address is your LAN IP address that squid listens on, and Port is the port (usually 3128 unless you changed it)
eg. squidclient -h 10.10.0.1 -p 3128 mgr:info
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Thanks for the pointer… Could you just explain what the last parameter means and what I should expect after running this command?
When I ran it I got no response - didn't know what to expect...
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If I remember, you have to add the IP address that squid listens on to the External cache Managers field in Services - Squid Proxy Server - Local cache. Your output should look like this:
[2.2.5-RELEASE][admin@pfsense.kominc.local]/root: squidclient -h 10.10.4.1 -p 3128 mgr:info Sending HTTP request ... done. HTTP/1.1 200 OK Server: squid Mime-Version: 1.0 Date: Wed, 10 Feb 2016 14:49:20 GMT Content-Type: text/plain Expires: Wed, 10 Feb 2016 14:49:20 GMT Last-Modified: Wed, 10 Feb 2016 14:49:20 GMT X-Cache: MISS from localhost X-Cache-Lookup: MISS from localhost:3128 Connection: close Squid Object Cache: Version 3.4.10 Build Info: Start Time: Fri, 25 Dec 2015 17:55:34 GMT Current Time: Wed, 10 Feb 2016 14:49:20 GMT Connection information for squid: Number of clients accessing cache: 58 Number of HTTP requests received: 9997622 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: 148.1 Average ICP messages per minute since start: 0.0 Select loop called: 261284164 times, 15.499 ms avg Cache information for squid: Hits as % of all requests: 5min: 1.2%, 60min: 3.7% Hits as % of bytes sent: 5min: 2.0%, 60min: 0.9% Memory hits as % of hit requests: 5min: 9.1%, 60min: 5.6% Disk hits as % of hit requests: 5min: 9.1%, 60min: 6.5% Storage Swap size: 9437124 KB Storage Swap capacity: 90.0% used, 10.0% free Storage Mem size: 8100 KB Storage Mem capacity: 98.9% used, 1.1% free Mean Object Size: 34.64 KB Requests given to unlinkd: 0 Median Service Times (seconds) 5 min 60 min: HTTP Requests (All): 0.06640 0.06640 Cache Misses: 0.06640 0.06640 Cache Hits: 0.00000 0.00091 Near Hits: 0.00179 0.01164 Not-Modified Replies: 0.00000 0.00000 DNS Lookups: 0.03223 0.03374 ICP Queries: 0.00000 0.00000 Resource usage for squid: UP Time: 4049625.975 seconds CPU Time: 17684.284 seconds CPU Usage: 0.44% CPU Usage, 5 minute avg: 0.94% CPU Usage, 60 minute avg: 0.80% Maximum Resident Size: 478176 KB Page faults with physical i/o: 168 Memory accounted for: Total accounted: 52310 KB memPoolAlloc calls: 1936117391 memPoolFree calls: 1943865739 File descriptor usage for squid: Maximum number of file descriptors: 57960 Largest file desc currently in use: 267 Number of file desc currently in use: 135 Files queued for open: 0 Available number of file descriptors: 57825 Reserved number of file descriptors: 100 Store Disk files open: 0 Internal Data Structures: 272539 StoreEntries 1887 StoreEntries with MemObjects 1831 Hot Object Cache Items 272431 on-disk objects
