Software assisted snoop containment for Packet Processing Applications
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In multicore systems, the cost of hardware enforced coherency increases with the a higher number of cores. This can be attributed to the requirement of a snooping based coherent system, where each core must inspect the memory traffic for every other core. The number of coherence actions will affect the overall performance of processors because these coherence requests interfere with a core's access to its own cache. This paper discusses how software can help hardware by reducing the amount of snoop traffic by correcting declaring memory coherency requirements.
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