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--- pub:projects:parallel_vm_migration [2013/03/04 11:08] – created classicsong
+++ pub:projects:parallel_vm_migration [2013/03/16 10:36] (current) – [Publications] root
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-Live VMmigration is one of the major primitive operations to manage
+======Parallelizing Live Migration of Virtual Machines======
-virtualized cloud platforms. In this project, we make
-a comprehensive analysis on the parallelization opportunities of
+Live VM migration is one of the major primitive operations to manage
-live VM migration on two popular open-source VMMs (i.e., Xen
+virtualized cloud platforms. However, with the increasing amount of
-and KVM). By leveraging abundant resources like CPU cores and
+resources configured to a single VM, this process may be extremely
+time-consuming, causing notable disruption to the running services.
+In this project, we investigate how this process could be parallelized
+on commodity multicore platforms.
+=== Faculty ===
+  * [[pub:members:Haibo Chen]]
+=== Students ===
+  * [[pub:members:Xiang Song]] [[pub:members:Jicheng Shi]] Ran Liu 　 [[pub:members:Jian Yang]]
+=====Approaches=====
+By leveraging abundant resources like CPU cores and
 NICs in contemporary server platforms, we design and implement
 a system called PMigrate that leverages data parallelism and
 pipeline parallelism to parallelize the operation.
+As the parallelization
+framework requires intensive mmap/munmap operations that
+tax the address space management system in an operating system,
+we further propose an abstraction called range lock, which improves
+scalability of concurrent mutation to the address space of
+an operating system (i.e., Linux) by selectively replacing the perprocess
+address space lock inside kernel with dynamic and fine grained
+range locks that exclude costly operations on the requesting
+address range from using the per-process lock.
+=====Result=====
+Evaluation with our
+working prototype on Xen and KVM shows that PMigrate accelerates
+the live VM migration ranging from 2.49X to 9.88X, and decreases
+the downtime ranging from 1.9X to 279.89X.
+=====Availability=====
+The source code of this project includes three parts (each source code
+includes a README file to show how to play with PMigrate):
+  - PMigrate for KVM: https://github.com/classicsong/PMigrate-KVM
+  - PMigrate for Xen: https://github.com/classicsong/PMigrate-Xen
+  - Range Lock Linux: https://github.com/classicsong/Range-Lock
+======Publications======
+   * Xiang Song, Jicheng Shi, Ran Liu, Jian Yang, Haibo Chen. Parallelizing Live Migration of Virtual Machines. In Proceedings of 2013 ACM International Conference on Virtual Execution Environments (**VEE 2013**), March, 2013. [{{:publications:parallel-migration.pdf|pdf}}]
+======Acknowledgement======
+This research was funded by NetApp Faculty Fellowship.