scholarly journals Nitro: Network-Aware Virtual Machine Image Management in Geo-Distributed Clouds

2018 ◽  
Author(s):  
Jad Darrous ◽  
Shadi Ibrahim ◽  
Amelie Chi Zhou ◽  
Christian Perez
Keyword(s):  
Virtual Machine ◽  
Image Management ◽  
Machine Image ◽  
Virtual Machine Image

Toward Virtual Machine Image Management for Persistent Memory

2021 ◽  
Vol 17 (3) ◽  
pp. 1-24
Author(s):  
Jiachen Zhang ◽  
Lixiao Cui ◽  
Peng Li ◽  
Xiaoguang Liu ◽  
Gang Wang
Keyword(s):  
Virtual Machine ◽  
Virtual Machines ◽  
High Capacity ◽  
Image Management ◽  
Address Translation ◽  
Persistent Memory ◽  
Memory Virtualization ◽  
Image Format ◽  
Machine Image ◽  
Virtual Machine Image

Persistent memory’s (PM) byte-addressability and high capacity will also make it emerging for virtualized environment. Modern virtual machine monitors virtualize PM using either I/O virtualization or memory virtualization. However, I/O virtualization will sacrifice PM’s byte-addressability, and memory virtualization does not get the chance of PM image management. In this article, we enhance QEMU’s memory virtualization mechanism. The enhanced system can achieve both PM’s byte-addressability inside virtual machines and PM image management outside the virtual machines. We also design pcow , a virtual machine image format for PM, which is compatible with our enhanced memory virtualization and supports storage virtualization features including thin-provisioning, base image, snapshot, and striping. Address translation is performed with the help of the Extended Page Table, thus much faster than image formats implemented in I/O virtualization. We also optimize pcow considering PM’s characteristics. We perform exhaustive performance evaluations on an x86 server equipping with Intel’s Optane DC persistent memory. The evaluation demonstrates that our scheme boosts the overall performance by up to 50× compared with qcow2, an image format implemented in I/O virtualization, and brings almost no performance overhead compared with the native memory virtualization. The striping feature can also scale-out the virtual PM’s bandwidth performance.

scholarly journals Expelliarmus: Semantic-centric virtual machine image management in IaaS Clouds

2020 ◽  
Vol 146 ◽  
pp. 107-121
Author(s):  
Nishant Saurabh ◽  
Shajulin Benedict ◽  
Jorge G. Barbosa ◽  
Radu Prodan
Keyword(s):  
Virtual Machine ◽  
Image Management ◽  
Machine Image ◽  
Virtual Machine Image

Towards Declarative and Data-Centric Virtual Machine Image Management in IaaS Clouds

2019 ◽  
Vol 7 (4) ◽  
pp. 1124-1138 ◽  
Author(s):  
Haikun Liu ◽  
Bingsheng He ◽  
Xiaofei Liao ◽  
Hai Jin
Keyword(s):  
Virtual Machine ◽  
Image Management ◽  
Machine Image ◽  
Virtual Machine Image

scholarly journals Semantics-Aware Virtual Machine Image Management in IaaS Clouds

2019 ◽  
Author(s):  
Nishant Saurabh ◽  
Julian Remmers ◽  
Dragi Kimovski ◽  
Radu Prodan ◽  
Jorge G. Barbosa
Keyword(s):  
Virtual Machine ◽  
Image Management ◽  
Machine Image ◽  
Virtual Machine Image

scholarly journals Distributed environment for efficient virtual machine image management in federated Cloud architectures

2017 ◽  
Vol 30 (20) ◽  
pp. e4220 ◽  
Author(s):  
Dragi Kimovski ◽  
Attila Marosi ◽  
Sandi Gec ◽  
Nishant Saurabh ◽  
Attila Kertesz ◽  
...  
Keyword(s):  
Virtual Machine ◽  
Image Management ◽  
Distributed Environment ◽  
Machine Image ◽  
Virtual Machine Image
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