A fault-tolerant, dynamically scheduled pipeline structure for chip multiprocessors
SAFECOMP'11 Proceedings of the 30th international conference on Computer safety, reliability, and security
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Resource sharing unpredictably affects per-thread performance in multithreaded architectures, but system software assumes all coexecuting threads make equal progress. Per-thread cycle accounting addresses this problem by tracking per-thread progress rates for each coexecuting thread. This approach has the potential to improve quality of service (QoS), service-level agreements (SLA), performance predictability, service differentiation, and proportional-share performance on multithreaded architectures.