“; } long last_modified = last_modified_time.getTime(); response.setDateHeader(“Last-Modified”,last_modified); —————————————————————————————- 察看cache命中率等信息，可以用如下命令： /data/squid/bin/squidclient -p 80 cache_object://localhost/info 其中的如下信息比较重要： Cache information for squid: Request Hit Ratios: 5min: 41.5%, 60min: 40.1% Byte Hit Ratios: 5min: 52.3%, 60min: 50.8% Request Memory Hit Ratios: 5min: 27.7%, 60min: 30.7% Request Disk Hit Ratios: 5min: 38.3%, 60min: 39.2% Storage Swap size: 1886720 KB Storage Mem size: 39452 KB Mean Object Size: 50.85 KB Requests given to unlinkd: 1685]]>