BackFillMe: An energy and performance efficient virtual machine scheduler for IaaS datacenters

Zakarya, Muhammad, Gillam, Lee, Qazani, Mohammad Reza Chalak, Khan, Ayaz Ali, Salah, Khaled and Rana, Omer ORCID: https://orcid.org/0000-0003-3597-2646 2025. BackFillMe: An energy and performance efficient virtual machine scheduler for IaaS datacenters. IEEE Transactions on Services Computing 10.1109/tsc.2025.3539190

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Abstract

Backfilling refers to the practice of allowing small jobs to be completed ahead of schedule as long as they do not cause the first job in the line to wait. Users are expected to offer estimates of how long jobs will take to complete in order to make these decisions possible, and these projections are often based on historical data. However, predictions are very hard and may not be accurate, particularly in cloud computing scenarios where jobs or applications run on Virtual Machines (VMs). In addition, scheduling and consolidation techniques can improve the energy efficiency and performance of applications. Consolidation involves VM migrations that can have a negative impact on workload performance and users' costs. Backfilling can be used as an alternative technique for consolidation (short-term) and/or can be used along with consolidation (long-term). Backfilling methods are well-utilised in single computing systems, but are relatively unexplored in cloud resource allocation. A backfilling-based resource allocation and consolidation technique is proposed. Using real workloads from the Google cluster traces, we investigate the impact of backfilling on infrastructure energy efficiency and performance. For 12583 heterogeneous servers and approximately three million jobs that belong to three different applications, we observed that approximately 19% energy savings and 6% workload performance improvements are achievable using the backfilling approach. Furthermore, our evaluation suggests that using VM runtime as a criterion for the backfilling approach is approximately 3.56% – 7.78% more energy and 1.91% – 3.38% more performance efficient than using priority as a backfilling criterion.

Item Type:	Article
Status:	In Press
Schools:	Schools > Computer Science & Informatics
Additional Information:	License information from Publisher: LICENSE 1: URL: https://ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html, Start Date: 2025-01-01
Publisher:	Institute of Electrical and Electronics Engineers
ISSN:	1939-1374
Last Modified:	19 Feb 2025 10:15
URI:	https://orca.cardiff.ac.uk/id/eprint/176298

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