Hi Everybody,
We have a Squid 2.6.STABLE13 running on an
OpenBSD box along with packet filtering(earlier we used to run it on
FedoraCore4). The machine is a P4 3.4 GHz with 1 GB RAM and running
a cache of 30 GB. The external link speed is 4 Mbps. We use the DNS
server of our ISP .the internet connection is pathetic . The details
of the output of the squid client is as follows.
Squid Object Cache: Version 2.6.STABLE13
Start Time: Tue, 07 Aug 2007 23:55:51 GMT
Current Time: Wed, 08 Aug 2007 10:19:24 GMT
Connection information for squid:
Number of clients accessing cache: 761
Number of HTTP requests received: 436323
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: 699.7
Average ICP messages per minute since start: 0.0
Select loop called: 578899 times, 64.628 ms avg
Cache information for squid:
Request Hit Ratios: 5min: 28.4%, 60min: 23.5%
Byte Hit Ratios: 5min: 19.2%, 60min: 19.5%
Request Memory Hit Ratios: 5min: 12.1%, 60min: 13.9%
Request Disk Hit Ratios: 5min: 41.5%, 60min: 41.7%
Storage Swap size: 13067832 KB
Storage Mem size: 190880 KB
Mean Object Size: 19.80 KB
Requests given to unlinkd: 0
Median Service Times (seconds) 5 min 60 min:
HTTP Requests (All): 11.37373 8.22659
Cache Misses: 15.72468 12.00465
Cache Hits: 5.06039 4.07741
Near Hits: 14.89826 12.00465
Not-Modified Replies: 3.86308 3.28534
DNS Lookups: 6.80420 4.17707
ICP Queries: 0.00000 0.00000
Resource usage for squid:
UP Time: 37413.255 seconds
CPU Time: 34220.020 seconds
CPU Usage: 91.46%
CPU Usage, 5 minute avg: 95.51%
CPU Usage, 60 minute avg: 97.02%
Process Data Segment Size via sbrk(): 0 KB
Maximum Resident Size: 0 KB
Page faults with physical i/o: 65
Memory accounted for:
Total accounted: 275284 KB
memPoolAlloc calls: 52025731
memPoolFree calls: 49328868
File descriptor usage for squid:
Maximum number of file descriptors: 1024
Largest file desc currently in use: 855
Number of file desc currently in use: 675
Files queued for open: 7
Available number of file descriptors: 342
Reserved number of file descriptors: 100
Store Disk files open: 27
IO loop method: kqueue
Internal Data Structures:
662573 StoreEntries
29686 StoreEntries with MemObjects
29517 Hot Object Cache Items
660137 on-disk objects
A few of my Squid configuration which i think you guys may require
are as follows:
cache_mem 400 MB
maximum_object_size 20480 KB
maximum_object_size_in_memory 20 KB
fqdncache_size 4096
cache_dir aufs /var/squid/cache 32768 64 256
cache_dns_program /usr/local/libexec/dnsserver
dns_children 32
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
acl SSL_ports port 443 563 5223
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 563 5223 # https, snews
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager all
# Deny requests to unknown ports
http_access deny !Safe_ports
# Deny CONNECT to other than SSL ports
http_access deny CONNECT !SSL_ports
# one who can access services on "localhost" is a local user
http_access deny to_localhost
reply_body_max_size 20971520 allow all
append_domain .xxx.xx.xx
Is the number of request on my server too high.even my CPU utilization
is too high.Do we need to upgrade the machine .Please help
Regards
Preetish
