DMCA
Reducing Message Overhead in Home-Based Software DSMs (1999)
| Venue: | IN PROC. OF THE 1ST WORKSHOP ON SOFTWARE DISTRIBUTED SHARED MEMORY |
| Citations: | 5 - 2 self |
BibTeX
@INPROCEEDINGS{Hu99reducingmessage,
author = {Weiwu Hu},
title = {Reducing Message Overhead in Home-Based Software DSMs},
booktitle = {IN PROC. OF THE 1ST WORKSHOP ON SOFTWARE DISTRIBUTED SHARED MEMORY},
year = {1999},
pages = {7--11},
publisher = {}
}
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Abstract
Among the tradeoffs between home-based and homeless software DSMs, a frequently mentioned disadvantage of the home-based software DSM is that it fetches the whole page on a page fault while the homeless protocol fetches diffs only. This paper proposes the write vector technique to reduce message amount in home-based software DSMs. Other than fetching a whole page on a page fault as in traditional home-based software DSMs, the write vector technique divides a page into blocks and fetches only those blocks that are dirty with respect to the faulting processor on a page fault. A write vector table is maintained for each shared page in its home to record for each processor which block(s) has been modified since the processor fetched the page last time. Performance evaluation with some popularly accepted benchmarks shows that the write vector technique can reduce message amounts dramatically and consequently improve performance significantly in some benchmarks. The extra time overhead of th...
Keyphrases
home-based software dsms message overhead page fault write vector technique message amount whole page page last time traditional home-based software dsms home-based software dsm write vector table homeless protocol fetch performance evaluation extra time overhead homeless software dsms faulting processor
