Dubious. The question is what the tail response time of the arbiter is at full load. The key measurement (which is conspicuously absent from the paper) is the i

Dubious. The question is what the tail response time of the arbiter is at full load. The key measurement (which is conspicuously absent from the paper) is the impact on the end-to-end delay at varying load. A distribution graph of this would answer this question immediately. My suspicion is that it is no better because essentially that same about of "scheduling work" is being done regardless of where it is done.