Tuning of rsync Algorithm for Optimum Cloud Storage Performance

Maria Constantinou

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Abstract

The rsync algorithm is tuned so to obtain optimum cloud storage performace. More than
50000 emulations with the “real rsync” and real files have been carried out so to obtain information
on the algorithm’s performance. The performance of cloud storage is said to be optimum
when the number of bytes trasmitted with every synchronisation is minimum. Hence I also
present a model that captures the number of bytes that are transmitted through the rsync link.
This model was validated by simulating it and comparing the results to the outcomes of the
experiments that were performed. Finally by analysing the model mathematically I extracted
an expression that gives the optimal block-size which depends on the size of the file and the
changes made to it.
Original languageEnglish
Place of PublicationBath, U. K
PublisherDepartment of Computer Science, University of Bath
Number of pages51
Publication statusPublished - Dec 2013

Publication series

NameDepartment of Computer Science Technical Report Series
No.CSBU-2013-10
ISSN (Print)1740-9497

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