hi all: We use squid to accelerate our dynamic pages(resin/jsp), some pages are setting to very short expiry time(2min). and some are one day. It works good at the beginning, But I meet a strange problem: when squid start, it use about 8% of cpu time. the speed is fast. after 2 or 3 days, the cpu usage grows up to 49%, and the speed is slow. since the system is using hyperthread feature of cpu, so I think the actual cpu usage is about 99%. below is the configuration file and some information. thanks squid.conf: http_port 80 acl CACHABLE_PAGES urlpath_regex ^/page1.jsp acl CACHABLE_PAGES urlpath_regex ^/page2.jsp acl NONE_CACHABLE_PAGES urlpath_regex \.jsp no_cache allow CACHABLE_PAGES no_cache deny NONE_CACHABLE_PAGES maximum_object_size_in_memory 256 KB cache_mem 128 MB cache_dir diskd /data/squid/var/cache 1024 16 256 cache_log /data/squid/var/logs/cache.log cache_store_log none emulate_httpd_log off dns_children 5 redirect_children 20 auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours refresh_pattern -i \.jpg$ 1440 50% 10080 reload-into-ims refresh_pattern -i \.gif$ 1440 50% 10080 reload-into-ims refresh_pattern -i \.png$ 1440 50% 10080 reload-into-ims refresh_pattern -i \.bmp$ 1440 50% 10080 reload-into-ims refresh_pattern -i \.css$ 10 50% 60 reload-into-ims refresh_pattern -i \.js$ 10 50% 60 reload-into-ims refresh_pattern -i \.htm$ 10 50% 60 reload-into-ims refresh_pattern -i \.html$ 10 50% 60 reload-into-ims refresh_pattern ^http://host1/page1\.jsp 1440 0% 1440 ignore-reload refresh_pattern ^http://host1/ 1440 0% 1440 ignore-reload refresh_pattern ^http://host1/page2\.jsp 2 0% 2 ignore-reload refresh_pattern . 0 0% 0 ... some acl ... visible_hostname squid1 httpd_accel_port 80 httpd_accel_host host1 httpd_accel_single_host on httpd_accel_with_proxy off httpd_accel_uses_host_header on coredump_dir /data/squid/var/cache client_db off half_closed_clients off client_persistent_connections off server_persistent_connections off some information: client_http.requests = 23.248488/sec client_http.hits = 11.862562/sec server.all.requests = 11.339263/sec page_faults = 0.003333/sec select_loops = 246.597295/sec select_fds = 214.716036/sec
