Re: [squid-users] squid consuming too much processor/cpu

you might want to check out this thread

http://www.mail-archive.com/squid-users@squid-cache.org/msg56216.html

cheers
ivan

On Wed, Mar 17, 2010 at 4:55 PM, Muhammad Sharfuddin
<m.sharfuddin_at_nds.com.pk> wrote:
> Squid Cache: Version 2.7.STABLE5(squid-2.7.STABLE5-2.3)
> kernel version: 2.6.27 x86_64
> CPU: Xeon 2.6 GHz CPU
> Memory: 2 GB
> /var/cache/squid is ext3, mounted with 'noacl' and 'noatime' options
> number of users using this proxy: 160
> number of users using simultaneously/concurrently using this proxy: 72
>
> I found that squid is consuming too much cpu, average cpu idle time is
> 49 only.
>
> I have attached the output 'top -b -n 7', and 'vmstat 1'
>
> below is the output of squid.conf
>
> squid.conf:
> ---------
>
> http_port 8080
> cache_mgr administrator_at_test.com
> cache_mem 1024 MB
> cache_dir aufs /var/cache/squid 20000 32 256
> visible_hostname gateway.test.com
> refresh_pattern ^ftp: 1440 20% 10080
> refresh_pattern ^gopher: 1440 0% 1440
> refresh_pattern -i \.(gif|png|jpg|jpeg|ico)$ 10080 90% 43200
> refresh_pattern -i \.(iso|avi|wav|mp3|mp4|mpeg|swf|flv|x-flv)$ 43200 90%
> 432000
> refresh_pattern -i \.(deb|rpm|exe|zip|tar|tgz|ram|rar|bin|ppt|doc|tiff)$
> 10080 90% 43200
> refresh_pattern -i \.index.(html|htm)$ 0 40% 10080
> refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 40320
> refresh_pattern . 0 40% 40320
> cache_swap_low 78
> cache_swap_high 90
>
> maximum_object_size_in_memory 100 KB
> maximum_object_size 12288  KB
>
> fqdncache_size 2048
> ipcache_size 2048
>
> acl myFTP port   20  21
> acl ftp_ipes src "/etc/squid/ftp_ipes.txt"
> http_access allow ftp_ipes myFTP
> http_access deny myFTP
>
> acl porn_deny url_regex "/etc/squid/domains.deny"
> http_access deny porn_deny
>
> acl vip src "/etc/squid/vip_ipes.txt"
> http_access allow vip
>
> acl entweb url_regex "/etc/squid/entwebsites.txt"
> http_access deny entweb
>
> acl mynet src "/etc/squid/allowed_ipes.txt"
> http_access allow mynet
>
>
> please help, why squid is utilizing so much of cpu
>
>
> --
> Regards
> Muhammad Sharfuddin | NDS Technologies Pvt Ltd | +92-333-2144823
>
>
Received on Wed Mar 17 2010 - 08:55:07 MDT