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Efficient TLB-Based Detection of Private Pages in Chip Multiprocessors
Authors
José Francisco Duato Marín
Albert Esteve García
+3 more
María Engracia Gómez Requena
Antonio Robles Martínez
Alberto Ros Bardisa
Publication date
1 March 2016
Publisher
'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Cite
Abstract
© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Most of the data referenced by sequential and parallel applications running in current chip multiprocessors are referenced by a single thread, i.e., private. Recent proposals leverage this observation to improve many aspects of chip multiprocessors, such as reducing coherence overhead or the access latency to distributed caches. The effectiveness of those proposals depends to a large extent on the amount of detected private data. However, the mechanisms proposed so far do not consider neither thread migration nor the private use of data within different application phases. As a result, a considerable amount of private data is not detected. In order to increase the detection of private data, we propose a TLB-based mechanism that is able to account for both thread migration and application phases. Simulation results show that the average number of pages detected as private significantly increases from 43 percent in previous proposals up to 79 percent in ours while keeping a reasonable TLB miss rate. Furthermore, when our proposal is used to deactivate the coherence for private data in a directory protocol, it improves execution time by 13.5 percent, on average, with respect to previous techniques.This work was jointly supported by the MINECO and European Commission (FEDER funds) under the project TIN2012-38341-C04-01/03 and the Fundacion Seneca-Agencia de Ciencia y Tecnologia de la Region de Murcia under the project Jovenes Lideres en Investigacion 18956/JLI/13. Albert Esteve is the corresponding author.Esteve García, A.; Ros Bardisa, A.; Gómez Requena, ME.; Robles Martínez, A.; Duato Marín, JF. (2016). Efficient TLB-Based Detection of Private Pages in Chip Multiprocessors. IEEE Transactions on Parallel and Distributed Systems. 27(3):748-761. https://doi.org/10.1109/TPDS.2015.2412139S74876127
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Last time updated on 25/12/2019