Performance Utilization and Performance Benchmarking in Embedded SystemsIn an ideal world, the selection of a processor for a new product is based on the hardware architecture and performance requirements. However, in reality both the architecture and processor are selected based on a variety of reasons including cost, available tools, developer familiarity, support, and (too often) political reasons. In many embedded development environments, performance requirements are considered after-the-fact. Performance considerations are frequently neglected until performance-related problems arise. Several reasons for this neglect exist, the first being the performance requirements themselves. Performance issues may be omitted completely from the requirement specification document. Alternatively, existing performance requirements may be ignored or altered in response to time-to-market pressures.
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