Hi, I'm using squid 3.1.8 on centos 5.4 with 3.8GB RAM and Dual Core Processor. My swap is been used and 50% of RAM is used by cache & buffers. Below link has one week's memory & CPU utilization information in form of graph. Memory usage --> http://img.myph.us/Cr8.jpg CPU usage --> http://img.myph.us/PgM.jpg I'm worried as to why the usage of swap is coming into picture, logically if Swap is used then I need to increase the RAM but this machine is serving only 12 users. My squid.conf is here auth_param negotiate program /usr/lib/squid/squid_kerb_auth -d -s GSS_C_NO_NAME auth_param negotiate children 10 auth_param negotiate keep_alive on auth_param ntlm program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 8 auth_param basic program /usr/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param basic credentialsttl 4 hour auth_param basic casesensitive off auth_param basic children 7 auth_param basic realm DOMAINNAME authenticate_cache_garbage_interval 10 seconds authenticate_ttl 0 seconds acl ad-auth proxy_auth REQUIRED acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 acl allow_localnet dst 192.168.110.0/24 192.168.188.0/24 acl allow_localdomain dstdomain .domain.com acl local_net_dst dst 192.168.117.0/24 acl local_net_src src 192.168.117.0/24 acl Unsafe_Ports port 5050 843 5100 5101 5000-5010 9085 acl Unsafe_Ports port 1863 acl Unsafe_Ports port 5222 acl SSL_ports port 443 acl Safe_ports port 80 53 3268 88 5060 5061 5062 5075 5076 5077 50636 587 50389 58941 110 995 993 143 389 636 119 25 465 135 102 3000 # 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 http_access allow localhost allow_localnet allow_localdomain http_access allow manager localhost http_access allow ad-auth http_access deny manager http_access deny Unsafe_Ports !Safe_ports http_access deny CONNECT !SSL_ports http_access deny all redirect_program /usr/local/bin/squidGuard -c /usr/local/squidGuard/squidGuard.conf redirect_children 15 icp_access deny all htcp_access deny all http_port 3128 cache_mem 128 MB cache_dir aufs /var/squid/cache 128 16 256 hierarchy_stoplist cgi-bin ? access_log /var/log/squid/access.log squid refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern (cgi-bin|\?) 0 0% 0 refresh_pattern . 0 20% 4320 icp_port 3130 pipeline_prefetch off #delay_pools 2 #delay_class 1 4 #delay_class 2 4 #delay_access 1 allow local_net_src #delay_access 2 allow local_net_dst #delay_parameters 1 -1/-1 -1/-1 -1/-1 51200/51200 #delay_parameters 2 -1/-1 -1/-1 -1/-1 -1/-1 #delay_initial_bucket_level 75 httpd_suppress_version_string on forwarded_for off hosts_file /etc/hosts cache_replacement_policy heap LFUDA cache_swap_low 90 cache_swap_high 95 maximum_object_size_in_memory 50 KB memory_pools off maximum_object_size 50 MB quick_abort_min 0 KB quick_abort_max 0 KB log_icp_queries off client_db off buffered_logs on half_closed_clients off I had delay pools but I later disabled them as well.
