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A three phase optimization method for precopy based VM live migration.

Sangeeta Sharma¹, Meenu Chawla¹

¹Department of Computer Science and Engineering, Maulana Azad National Institute of Technology, Bhopal, 462003 India.

|July 22, 2016

Summary

This summary is machine-generated.

Virtual machine live migration performance is improved by the three-phase optimization (TPO) method. This technique reduces memory pages transferred, migration time, and downtime for virtualized datacenters.

Keywords:

Downtime Service interruption System management Total migration time VM live migration Virtualization

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Area of Science:

Computer Science
Cloud Computing
Systems Engineering

Background:

Virtual machine live migration is crucial for efficient datacenter management.
Large memory page transfers during migration cause significant downtime and performance degradation, especially over slow networks.
Precopy-based migration methods face challenges with performance drops due to extensive data transfer.

Purpose of the Study:

To analyze the performance limitations of precopy-based virtual machine live migration.
To propose and evaluate a novel three-phase optimization (TPO) method to enhance migration efficiency.
To reduce total pages transferred, migration time, and downtime.

Main Methods:

Analysis of precopy-based virtual machine live migration issues.
Development of the three-phase optimization (TPO) method: (i) reducing initial memory page transfer, (ii) classifying frequently updated pages to minimize duplicate transfers, and (iii) applying RLE compression in the final iteration.
Evaluation of TPO using diverse workloads in a Xen virtualized environment.

Main Results:

The TPO method significantly reduced total pages transferred by 71%, total migration time by 70%, and downtime by 3% for high workloads.
The TPO method demonstrated effectiveness with fewer iterations compared to traditional precopy methods.
Minimal overhead was observed with the TPO method compared to the traditional precopy approach.

Conclusions:

The proposed TPO method effectively addresses the performance bottlenecks in virtual machine live migration.
TPO offers a substantial improvement in migration speed and reduction in service interruption.
The method is efficient and performs well even under demanding workloads and with fewer iterations.