The cache_mem parameter is 10 MB so the cached objects in memory are 10 MB.
The cache_dir is 10 GB so the cached objects on disk are 10 GB.
Most likely squid is slow because of the I/O.
If you have 16 GB of memory and a 64-bit OS and 64-bit Squid you can set
cache_mem to 4 GB to have a lot more objects in memory and reduce I/O.
On Linux aufs is faster than ufs for cache_dir and on BSD diskd is faster than ufs.
To tune cache_mem properly the FAQ is highly recommended:
http://wiki.squid-cache.org/SquidFaq/SquidMemory
Marcus
rpereyra@xxxxxxxxxxx wrote:
Hi
How I can limit the ram memory use in my squid/tproxy box ?
I have a fast server with 16Gb ram. The average bandwidth is about 60-70
Mb/s.
The bridge works well but when the cache and memory becomes full its goes
slow and becomes unusable.
The cache is 10G size.
I see that a few hours to be working and have used the 16 GB of RAM
starts to run slow.
Any help ?. I have configured some memory optimization options but looks
don't help for me.
Thanks in advance
roberto
This is my config:
-------------------------------------
cache_mem 10 MB
memory_pools off
cache_swap_low 94
cache_swap_high 95
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl localhost src ::1/128
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl to_localhost dst ::1/128
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged) machines
acl net-g1 src 200.117.xxx.xxx/24
acl net-g2 src 200.xxx.xxx.xxx/24
acl net-g3 src 190.xxx.xxx.xxx/24
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
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
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
http_access allow net-g1
http_access allow net-g2
http_access allow net-g3
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost
# And finally deny all other access to this proxy
http_access deny all
# Squid normally listens to port 3128
http_port 3128
http_port 3129 tproxy
# We recommend you to use at least the following line.
hierarchy_stoplist cgi-bin ?
# Uncomment and adjust the following to add a disk cache directory.
cache_dir ufs /var/spool/squid 10000 64 256
#access_log /var/log/squid/access.log squid
access_log none
cache_log /var/log/squid/cache.log
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
# Add any of your own refresh_pattern entries above these.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
