slides - Computing Systems Laboratory
slides - Computing Systems Laboratory
slides - Computing Systems Laboratory
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Evaluation• Increasing promise as number of cores increase• Hardware Cost per core– BF arrays (4096 sets * 32b) → 16KB– Counters (4096 sets * 2 counters * 8b) → 8KB– L2 Cache (240KB tags + 4MB data) → 4336KB– 0.55% increase in area• 8-core system– 48KB for the core-ids per cache set– Total overhead 240KB → 5.5% increase over L2
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