The Five-Minute Rule 20 Years Later : interesting CACM article updating Gray and Putzolu’s “Five-Minute Rule” for RAM and disks (which postulated that a 1KB record accessed more frequently than once every 5 mins should be stored in RAM, rather than on disk). modern price/performance indicates that this still holds, once 256KB records are used. The article also suggests that a new tier of persistent flash storage should be considered, adding a new set of 5-minute-rule transitions for 2KB records migrating from RAM to flash
(tags: performance disk caching ram flash storage 5-minute-rule jim-gray memory acm)Spice burgers back on the menu due to popular demand – The Irish Times : ‘The humble spice burger, one of Ireland’s few original contributions to world cuisine, has been saved.’ YAY
(tags: spice-burgers ireland cuisine food yum saved chippers phew)