Hello All,
Randomly, the cpu usage on system shows squid at 99%. The cache log does not
contain any information at the time cpu was pegged. I copied the cache manager log.
We are running Squid 2.4.STABLE4 on RedHat Linux. This is a brand new system with two
AMD Athlon(tm)MP 1800+ processors and 1gig memory. Any ideas on cause of cpu at 99%?
Is the cache causing high cpu usage. I noticed the page faults with physical i/o
at 402. Is this a concern?
Thank you in advance.
Connection information for squid:
Number of clients accessing cache: 238
Number of HTTP requests received: 3063389
Number of ICP messages received: 0
Number of ICP messages sent: 0
Number of queued ICP replies: 0
Request failure ratio: 0.00%
HTTP requests per minute: 275.0
ICP messages per minute: 0.0
Select loop called: 546252462 times, 1.223 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 55.9%, 60min: 39.1%
Byte Hit Ratios: 5min: 10.3%, 60min: 13.7%
Request Memory Hit Ratios: 5min: 0.2%, 60min: 0.8%
Request Disk Hit Ratios: 5min: 19.2%, 60min: 29.7%
Storage Swap size: 1887432 KB
Storage Mem size: 8124 KB
Mean Object Size: 10.75 KB
Requests given to unlinkd: 672128
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 0.03622 0.22004
Cache Misses: 0.37825 0.37825
Cache Hits: 0.00091 0.00678
Near Hits: 0.23230 0.24524
Not-Modified Replies: 0.00000 0.00179
DNS Lookups: 0.02231 0.01609
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 668338.918 seconds
CPU Time: 34809.600 seconds
CPU Usage: 5.21%
CPU Usage, 5 minute avg: 62.27%
CPU Usage, 60 minute avg: 30.79%
Maximum Resident Size: 0 KB
Page faults with physical i/o: 402
Memory usage for squid via mallinfo():
Total space in arena: 46330 KB
Ordinary blocks: 33129 KB 2137 blks
Small blocks: 0 KB 0 blks
Holding blocks: 176 KB 1 blks
Free Small blocks: 0 KB
Free Ordinary blocks: 13201 KB
Total in use: 33305 KB 72%
Total free: 13201 KB 28%
Memory accounted for:
Total accounted: 25934 KB
memPoolAlloc calls: 407299936
memPoolFree calls: 406731557
File descriptor usage for squid:
Maximum number of file descriptors: 1024
Largest file desc currently in use: 163
Number of file desc currently in use: 93
Files queued for open: 0
Available number of file descriptors: 931
Reserved number of file descriptors: 100
Store Disk files open: 5
Internal Data Structures:
175631 StoreEntries
1716 StoreEntries with MemObjects
1704 Hot Object Cache Items
175549 on-disk objects
------------------------------------------------------------------------
Generated Mon, 18 Mar 2002 21:53:18 GMT, by
cachemgr.cgi/2.4.STABLE2@sysadm.microcenter.com
Received on Mon Mar 18 2002 - 15:06:17 MST
This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 17:06:58 MST