Hello, I'm using Squid 2.9 stable7 as transparent proxy on Debian 6.0. I have 3 links to 3 ISPs. For now I have max 50mbits squid traffic for 200 users. Users are assigned to proper IP class and each class to proper link to ISP. Traffic is logged not cached on disk. I don't need anything else. Problem is with very high load and CPU usage (70%) of squid process. If I use simple NAT without Squid, CPU usage with this traffic is less than 5%. My machine is old P4 2,8HT 2gb ram, intel network cards. My squid configuration: http_port 192.168.0.100:8080 transparent acl IP150 src 192.168.1.0/255.255.255.0 acl IP45 src 192.168.2.0/255.255.255.0 acl IP10 src 192.168.3.0/255.255.255.224 http_access allow IP150 http_access allow IP45 http_access allow IP10 tcp_outgoing_address x.x.x.150 IP150 udp_outgoing_address x.x.x.150 IP150 tcp_outgoing_address y.y.y.45 IP45 udp_outgoing_address y.y.y.45 IP45 tcp_outgoing_address z.z.z.10 IP10 udp_outgoing_address z.z.z.10 IP10 error_directory /usr/share/squid-langpack/pl half_closed_clients off acl safe_ports port 80 acl safe_ports port 443 http_access deny !safe_ports acl all src 0.0.0.0/0 max_filedesc 8192 cache_mem 1000 MB maximum_object_size 4096 kB visible_hostname squid dns_nameservers 127.0.0.1 cache_dir null /squid/squid-cache memory_replacement_policy heap GDSF cache_access_log /var/log/squid/access.log cache_log /var/log/squid/cache.log cache_store_log none emulate_httpd_log on log_icp_queries off ipcache_size 10240 ipcache_low 90 ipcache_high 97 fqdncache_size 8192 memory_pools on memory_pools_limit 100 MB Could you please advise waht am I doing wrong how can I fix this? Best regards, mkeram
