Intel Page Modification Logging, a hardware virtualization feature: study and improvement for virtual machine working set estimation

January 7, 2020

Intel Page Modification Logging (PML) is a novel hardware feature for tracking virtual machine (VM) accessed memory pages. This task is essential in today’s data centers since it allows, among others, checkpointing, live migration and working set size (WSS) estimation. Relying on the Xen hypervisor, this paper studies PML from three angles: power consumption, efficiency, and performance impact on user applications. Our findings are as follows. First, PML does not incur any power consumption overhead. Second, PML reduces by up to 10.18% both VM live migration and checkpointing time. Third, PML slightly reduces by up to 0.95% the performance degradation on applications incurred by live migration and checkpointing.

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Brain-Friendly

The Birkenbihl Approach (BBA) means, learning as the brain loves to learn. Our brain - look to the minds of children - how they like to discover and to understand how things work. It uses neuro mechanisms like abstracting rules (grammar) and background listening (to build synapses for spelling).

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whitePaper | November 10, 2019

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vSphere Security - VMware vSphere 6.7

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Spotlight

Brain-Friendly

The Birkenbihl Approach (BBA) means, learning as the brain loves to learn. Our brain - look to the minds of children - how they like to discover and to understand how things work. It uses neuro mechanisms like abstracting rules (grammar) and background listening (to build synapses for spelling).

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