Reducing performance non-determinism via cache-aware page allocation strategies

Hocko, Michal and Kalibera, Tomas (2010) Reducing performance non-determinism via cache-aware page allocation strategies. In: Proceedings of the first joint WOSP/SIPEW International Conference on Performance Engineering. (The full text of this publication is not available from this repository)

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Performance non-determinism in computer systems complicates evaluation, use, and even development of these systems. In performance evaluation via benchmarking and simulation, non-determinism requires long executions and more complex experiment design. Real-time systems are hard to dimension and tune with non-determinism. The slower benchmarking also slows down system development, as it takes developers longer to see performance implications of their modifications. Cache-unaware physical page allocation in an operating system is believed to be a significant cause of non-determinism, but there is no published empirical study that would confirm it. We provide such a study for the Linux operating system, comparing the default cache-unaware page allocation strategy to known cache-aware strategies, page coloring and bin hopping. We have implemented a framework for page allocation strategies in the Linux kernel, employed it for these two strategies, and measured the non-determinism on a large and diverse set of benchmarks. We propose a statistical technique which allows to classify different kinds of performance non-determinism and evaluate their magnitudes. Application of our technique reveals that the two strategies do reduce performance non-determinism without significantly increasing mean response time.

Item Type: Conference or workshop item (UNSPECIFIED)
Uncontrolled keywords: determinacy analysis, Craig interpolants
Subjects: Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions: Faculties > Science Technology and Medical Studies > School of Computing
Depositing User: T. Kalibera
Date Deposited: 21 Sep 2012 09:49
Last Modified: 21 Sep 2012 09:49
Resource URI: (The current URI for this page, for reference purposes)
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