Cache Interference Phenomena (1994)
| Venue: | In Proceedings of the Sigmetrics Conference on Measurement and Modeling of Computer Systems |
| Citations: | 78 - 5 self |
BibTeX
@INPROCEEDINGS{Temam94cacheinterference,
author = {O. Temam and C. Fricker and W. Jalby},
title = {Cache Interference Phenomena},
booktitle = {In Proceedings of the Sigmetrics Conference on Measurement and Modeling of Computer Systems},
year = {1994},
pages = {261--271},
publisher = {ACM Press}
}
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Abstract
The impact of cache interferences on program performance (particularly numerical codes, which heavily use the memory hierarchy) remains unknown. The general knowledge is that cache interferences are highly irregular, in terms of occurrence and intensity. In this paper, the different types of cache interferences that can occur in numerical loop nests are identified. An analytical method is developed for detecting the occurrence of interferences and, more important, for computing the number of cache misses due to interferences. Simulations and experiments on real machines show that the model is generally accurate and that most interference phenomena are captured. Experiments also show that cache interferences can be intense and frequent. Certain parameters such as array base addresses or dimensions can have a strong impact on the occurrence of interferences. Modifying these parameters only can induce global execution time variations of 30% and more. Applications of these modeling techniq...
