i got these info from cache manager : Average HTTP requests per minute since start: 6584.0 Request Hit Ratios: 5min: 29.1%, 60min: 28.2% Byte Hit Ratios: 5min: 2.9%, 60min: 5.3% Request Memory Hit Ratios: 5min: 37.7%, 60min: 34.4% Request Disk Hit Ratios: 5min: 19.8%, 60min: 19.9% is it correct when i say that my squid-cache safe around 6% of my internet bandwidth?? is there a way to increase the byte hit ratios ?? my configuration is : - cache_mem 1024 MB - maximum_object_size 65536 KB - cache_replacement_policy heap LFUDA - memory_replacement_policy heap GDSF - cache_dir aufs /cache1 1500 16 256 - cache_dir aufs /cache3 1500 16 256 - cache_dir aufs /cache4 1500 16 256 - cache_dir aufs /cache5 1500 16 256 I'm using an Intel Xeon 3.06GHz with 3 GB of memory, all disks are SCSI. The server is dedicated fully for the squid cache. The OS is linux-2.6.15.6, using squid-2.5 STABLE 13 Thanks before