Squid Cache Management installedpackages->package->$packagename->configuration->settings General Settings /pkg_edit.php?xml=squid1.xml&id=0 Upstream Proxy /pkg_edit.php?xml=squid_upstream.xml&id=0 Cache Mgmt /pkg_edit.php?xml=squid_cache.xml&id=0 Network Access Control /pkg_edit.php?xml=squid_nac.xml&id=0 Traffic Mgmt /pkg_edit.php?xml=squid_traffic.xml&id=0 Authentication Settings /pkg_edit.php?xml=squid_auth.xml&id=0 Users /pkg_edit.php?xml=squid_users.xml&id=0 Memory Cache Size (MB) memory_cache_size This is the amount of physical RAM to be used for negative cache and in-transit objects. This value should not exceed more than 50% of installed RAM. The minimum value is 1MB; the default is 2MB 4 input number Hard Disk Cache Size (MB) harddisk_cache_size This is the amount of disk space (MB) to use for cached objects. The default is 50MB. 4 input number Minimum Object Size (KB) minimum_object_size Objects smaller than the size specified will not be saved on disk. This value is specified in kilobytes and the default is 0, meaning there is no minimum. 4 input number Maximum Object Size (KB) maximum_object_size Objects larger than the size specified will not be saved on disk. This value is specified in kilobytes and the default is 4MB. If you wish to increase speed more than you want to save bandwidth, this should be set to a low value. 4 input number Number of Level-1 Subdirectories level_subdirs The default for this value is 16. Each level-1 directory contains 256 subdirectories, so a value of 256 level-1 directories will use a total of 65536 directories for the hard disk cache. This will significantly slow down the startup process of the proxy service, but can speed up the caching under certain conditions. select 1616 3232 6464 128128 256256 Memory Replacement Policy memory_replacement The memory replacement policy determines which objects are purged from memory when space is needed. The default policy for memory replacement is GSDF. <p> <b> LRU: Last Recently Used Policy </b> - The LRU policies keep recently referenced objects. i.e., it replaces the object that has not been accessed for the longest time. <p> <b> Heap GSDF: Greedy-Dual Size Frequency </b> - The Heap GSDF policy optimizes object-hit rate by keeping smaller, popular objects in cache. It achieves a lower byte hit rate than LFUDA though, since it evicts larger (possibly popular) objects. <p> <b> Heap LFUDA: Least Frequently Used with Dynamic Aging </b> - The Heap LFUDA policy keeps popular objects in cache regardless of their size and thus optimizes byte hit rate at the expense of hit rate since one large, popular object will prevent many smaller, slightly less popular objects from being cached. <p> <b> Heap LRU: Last Recently Used </b> - Works like LRU, but uses a heap instead. <p> Note: If using the LFUDA replacement policy, the value of Maximum Object Size should be increased above its default of 4096 KB to maximuze the potential byte hit rate improvement of LFUDA. select LRUlru Heap LFUDAheap_lfuda Heap GDSFheap_gdsf Heap LRUheap_lru Cache Replacement Policy cache_replacement The cache replacement policy decides which objects will remain in cache and which objects are replaced to create space for the new objects. The default policy for cache replacement is LFUDA. select LRUlru Heap LFUDAheap_lfuda Heap GDSFheap_gdsf Heap LRUheap_lru Do not cache these domains no_cache_domains rowhelper Domain domain If required, the specified domains will never be cached. input 40 Enable Offline Mode enable_offline checkbox