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Hiérarchie mémoire : les caches

Authors: Etiemble, Daniel; Anceau, François;

Hiérarchie mémoire : les caches

Abstract

Entre le ou les processeurs d'un ordinateur et les organes de stockage existeune hiérarchie de mémoires, dont les temps d'accès augmentent et les débits diminuentlorsqu'on s'éloigne des processeurs. Cet article décrit les principes et le fonctionnementde cette hiérarchie comprise entre un processeur et la mémoire principale, pour lesarchitectures monoprocesseurs et les architectures parallèles multiprocesseurs etmulticoeurs. Après avoir introduit les principes de base et les techniques d'améliorationdes performances, les protocoles de cohérence sont introduits ainsi que les relationsentre les caches et l'autre partie de la hiérarchie, entre la mémoire principale et lesmémoires secondaires. Les principales optimisations logicielles tenant compte despropriétés des caches sont également introduites.

Article de synthèse

Country
France
Related Organizations
Keywords

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR], ACM: C.: Computer Systems Organization/C.1: PROCESSOR ARCHITECTURES, cohérence des caches, caches multiprocesseurs et multicoeurs, [INFO]Computer Science [cs], ACM: C.: Computer Systems Organization, optimisations logicielles, fonctionnement des caches

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average