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Reduce Interrupt Latency in Embedded Systems

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Reduce Interrupt Latency in Embedded Systems

Executive Summary
Embedded systems have traditionally been much more sensitive to both the interrupt latency and Central Processing Unit (CPU) overhead involved in servicing interrupts as compared to conventional Personal Computers (PC). Message Signaled Interrupts (MSI) represent the third generation of interrupt delivery methods for IO (Input/Output) devices, providing many benefits, including a significant reduction in interrupt latency.
Intel® architecture, consisting of a CPU, memory controller, and an IO controller, can provide the embedded developer with a competitive platform for embedded designs. Linux, a mature yet flexible open source operating system, has been extensively optimized for Intel® architecture, providing a robust interrupt framework supporting MSI.

Read the full Reduce Interrupt Latency in Embedded Systems White Paper.