Abstract: A computer system, computer-readable medium and a method for performing activity based cost modeling. A cost object array has dimensions defined by weight arrays each corresponding to facets of the business by which one would assess profitability and efficiency, such as by products and customers. Each element of the weight arrays represents a user-definable classification, such as particular product families or geographic regions, and is assigned an allocation weight. A cost driver array has the same dimensions as the cost object array comprising metrics, such as the quantity sold or dollars of revenue. A weighted allocation factor for each cost object is a function of the allocation weights and the cost driver for that cost object, normalized over all the cost objects. Activity costs are allocated to a particular cost object in proportion to the weighted allocation factor associated with that cost object.

Abstract: A novel method and apparatus to cache System Management Mode (SMM) data with other data to improve performance and reduce latency of SMM handler routines. This method and apparatus allows SMM data and non-SMM data to be distinguished in the cache without requiring extra cache bits which can add to the cost of implementation. Since SMM data and non-SMM data can coexist in the cache, there is no need for time consuming cache flush cycles when switching between the two modes. Since SMM data can be cached, performance of SMM routines are improved. This method and apparatus defines the SMRAM address range to be a range of addresses representable by the tag, but not directly corresponding to installed main memory. When accesses are made to SMRAM addresses, they are redirected to an unused portion of main memory. Protection mechanisms may be implemented to limit access to these SMRAM addresses when not in SMM.