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Using Latency to Evaluate Interactive System Performance

机译:使用延迟评估交互式系统性能

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摘要

The conventional methodology for system performance measurement, which relies primarily on throughput-sensitive benchmarks and throughput metrics, has major limitations when analyzing the behavior and performance of interactive workloads. The increasingly interactive character of personal computing demands new ways of measuring and analyzing system performance. In this paper, we present a combination of measurement techniques and benchmark methodologies that address these problems. We introduce several simple methods for making direct and precise measurements of event handling latency in the context of a realistic interactive application. We analyze how results from such measurements can be used to understand the detailed behavior of latency-critical events. We demonstrate our techniques in an analysis of the performance of two releases of Windows NT and Windows 95. Our experience indicates that latency can be measured for a class of interactive workloads, providing a substantial improvement in the accuracy and detail of performance information over measurements based strictly on throughput.
机译:用于系统性能测量的常规方法主要依赖于吞吐量敏感的基准和吞吐量指标,在分析交互式工作负载的行为和性能时存在很大的局限性。个人计算越来越具有交互性,因此需要新的方法来测量和分析系统性能。在本文中,我们提出了解决这些问题的测量技术和基准方法的组合。我们介绍了几种简单的方法,用于在实际的交互式应用程序的上下文中直接和精确地测量事件处理延迟。我们分析了如何将此类测量的结果用于了解延迟关键事件的详细行为。我们在分析两个版本的Windows NT和Windows 95的性能时演示了我们的技术。我们的经验表明,可以测量一类交互式工作负载的延迟,与基于测量的性能信息相比,性能信息的准确性和详细性有了显着提高。严格限制吞吐量。

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