Running Squid.2.5-STABLE1 and getting ready to switch to Squid.2.5-STABLE2.
System OS is RedHat Linux.
I've been checking archives for some general cache info. I'm thinking I need to increase cache, but not sure. Currently, cache_dir ufs /d1/squid_cache 2048 16 256
I have some disk that could be used for cache. /dev/sdb1 17488652 7408048 9192212 45% /d1
System has 1gig of memory. Number of proxy users usually averages between 250 to 300.
Generally, is it best to use as much disk for cache as possible?
system says /d1/squid_cache is using 1.9gig.
If cache is full (or soon to be full), then should I increase cache size?
How do you determine if cache_dir is filled? I only know to run disk usage (du -sh /d1/squid_cache) to determine how
much disk directory is using). Does Squid's cache mgr tell current size of cache, available/remaining?
Looking at cache dirs, only first four dirs of the the 16 are filled.
Why aren't all 16 dirs being used? Is current 2 gig allocated to cache not enough to fill all 16 dirs?
Enclosed is cache mgr runtime info.
Thanks !
Squid Object Cache: Version 2.5.STABLE1-20030102
Start Time: Wed, 05 Mar 2003 20:10:04 GMT Current Time: Thu, 27 Mar 2003 16:01:06 GMT
Connection information for squid:
Number of clients accessing cache: 342
Number of HTTP requests received: 11201554
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: 356.4
Average ICP messages per minute since start: 0.0
Select loop called: 180343978 times, 10.457 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 31.8%, 60min: 37.5%
Byte Hit Ratios: 5min: 21.3%, 60min: 15.0%
Request Memory Hit Ratios: 5min: 7.9%, 60min: 2.6%
Request Disk Hit Ratios: 5min: 37.2%, 60min: 37.7%
Storage Swap size: 1887456 KB
Storage Mem size: 8248 KB
Mean Object Size: 10.35 KB
Requests given to unlinkd: 2480416
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 0.09736 0.09219
Cache Misses: 0.15888 0.18699
Cache Hits: 0.01164 0.00919
Near Hits: 0.12783 0.11465
Not-Modified Replies: 0.00379 0.00767
DNS Lookups: 0.01535 0.01686
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 1885862.149 seconds
CPU Time: 69315.550 seconds
CPU Usage: 3.68%
CPU Usage, 5 minute avg: 7.76%
CPU Usage, 60 minute avg: 5.93%
Maximum Resident Size: 0 KB
Page faults with physical i/o: 2447
Memory usage for squid via mallinfo():
Total space in arena: 64956 KB
Ordinary blocks: 37133 KB 3958 blks
Small blocks: 0 KB 0 blks
Holding blocks: 192 KB 1 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 27823 KB
Total in use: 37325 KB 57%
Total free: 27823 KB 43%
Total size: 65148 KB
Memory accounted for:
Total accounted: 30327 KB
memPoolAlloc calls: 1588821210
memPoolFree calls: 1588232248
File descriptor usage for squid:
Maximum number of file descriptors: 1024
Largest file desc currently in use: 265
Number of file desc currently in use: 254
Files queued for open: 0
Available number of file descriptors: 770
Reserved number of file descriptors: 100
Store Disk files open: 1
Internal Data Structures:
182373 StoreEntries
1713 StoreEntries with MemObjects
1700 Hot Object Cache Items
182281 on-disk objects