A method for guaranteeing service quality of virtual machine online migration
A quality of service, virtual machine technology, applied in the field of ensuring the quality of service for online migration of virtual machines, can solve problems such as unstable service quality, and achieve the effect of avoiding performance interference, avoiding interference, and ensuring service quality
Active Publication Date: 2020-09-04
SHANDONG NORMAL UNIV +1
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Problems solved by technology
These processes share the last level cache resources (Last Level Cache, LLC) on the chip with the virtual machines running on the source node and the target node respectively, so they will be interfered by other virtual machines or processes running on the source node and the target node, result in unstable service quality
Method used
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0032] Such as image 3 As shown, a method for guaranteeing the service quality of virtual machine online migration includes the following steps:
[0033] Step (1): First, before the virtual machine is migrated online, first determine whether the last level cache resource LLC on the source node and the target node has been partitioned, if so, go to step (3), otherwise go to step (2) ;
[0034] Step (2): partition:
[0035] A. Partition the last-level cache resource LLC on the source node: establish a Z1 partition, and the storage capacity of the Z1 partition is the capacity of the last-level cache resource LLC on the source node divided by the shared last-level cache on the source node The number of processor cores of the resource LLC (as shown in Figure 2(a) the original node has two processor cores sharing the LLC, so the initial size of the Z1 part...
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The invention discloses a method for ensuring the service quality in live migration of a virtual machine. Before the live migration of the virtual machine, whether or not a last level cache (LLC) on a source node and a last level cache (LLC) on a target node are partitioned is judged at first; if not, the last level cache (LLC) on the source node is partitioned; the last level cache (LLC) on the target node is partitioned; the source node starts a scanning process and an assistant migration process, and the target node starts a receiving process; the source node starts the scanning process again to obtain a new dirty page set generated by the virtual machine; if the transmission time of the new dirty page set is within a preset time range, the virtual machine which needs to be migrated is suspended on the source node, and the dirty page set and process context saved after the virtual machine is suspended are transmitted to the target node; after data is received through the receiving process on the target node, the execution of the virtual machine is restored according to the process context, and therefore the live migration of the virtual machine is successful.
Description
technical field [0001] The invention relates to a method for guaranteeing the service quality of virtual machine online migration. Background technique [0002] Virtualization technology (Virtualization) divides physical resources into fine-grained virtual resources, realizes the isolation and operation of multi-user resources in the system, reduces conflicts between shared software, effectively solves the problem of resource sharing and usage, and supports the resource aggregation of cloud computing platforms, Features such as load balancing, energy saving, and scalability have become the core technologies of modern cloud computing platforms. [0003] A key feature of virtualization technology is the migration of virtual machines between physical nodes. The virtual machine migration technology transfers the running state of the virtual machine system from one physical node to another, and continues to run on the target physical node. Virtual machine migration technology c...
Claims
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IPC IPC(8): G06F9/455G06F9/48G06F9/50
CPCG06F9/45558G06F9/4881G06F9/5077G06F2009/4557
Inventor 耿世超赵雪王琳
Owner SHANDONG NORMAL UNIV