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SMP affinity and proper interrupt handling in Linux - Alex on Linux
Posted on April 15, 2008, 3:11 pm, by Alexander Sandler, under Programming Articles, System Administrator Articles. Introduction Hardware interrupts has always been expensive. Somehow these small pieces of software consume so much CPU power and hardware and software engineers has always been trying to change this state of affairs. Some significant progress has been made. Still hardware interrupts
rawwell 2013/01/30
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Why interrupt affinity with multiple cores is not such a good thing - Alex on Linux
Why interrupt affinity with multiple cores is not such a good thing One of the features of x86 architecture is ability to spread interrupts evenly among multiple cores. Benefits of such configuration seems to be obvious. Interrupts consume CPU time and by spreading them on all cores we avoid bottle-necks. I’ve written an article explaining this mechanism in greater detail. Yet let me remind you ho
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