Optimizing Soft Real-Time Scheduling Performance for Virtual Machines with SRT-Xen

2015 ◽  
Author(s):  
Kun Cheng ◽  
Yuebin Bai ◽  
Rui Wang ◽  
Yao Ma
Keyword(s):  
Real Time ◽  
Virtual Machines ◽  
Real Time Scheduling ◽  
Time Scheduling

A Secured Real Time Scheduling Model for Cloud Hypervisor

2016 ◽  
Vol 6 (4) ◽  
pp. 97-110
Author(s):  
Rekha Kashyap ◽  
Deo Prakash Vidyarthi
Keyword(s):  
Cloud Computing ◽  
Success Rate ◽  
Real Time ◽  
Virtual Machines ◽  
Resource Provisioning ◽  
Real Time Scheduling ◽  
Scheduling Model ◽  
Physical Resources ◽  
Time Scheduling ◽  
Deadline Constraints

Virtualization is critical to cloud computing and is possible through hypervisors, which maps the Virtual machines((VMs) to physical resources but poses security concerns as users relinquish physical possession of their computation and data. Good amount of research is initiated for resource provisioning on hypervisors, still many issues need to be addressed for security demanding and real time VMs. First work SRT-CreditScheduler (Secured and Real-time), maximizes the success rate by dynamically prioritizing the urgency and the workload of VMs but ensures highest security for all. Another work, SA-RT-CreditScheduler (Security-aware and Real-time) is a dual objective scheduler, which maximizes the success rate of VMs in best possible security range as specified by the VM owner. Though the algorithms can be used by any hypervisor, for the current work they have been implemented on Xen hypervisor. Their effectiveness is validated by comparing it with Xen's, Credit and SEDF scheduler, for security demanding tasks with stringent deadline constraints.

A Secured Real Time Scheduling Model for Cloud Hypervisor

2019 ◽  
pp. 507-522
Author(s):  
Rekha Kashyap ◽  
Deo Prakash Vidyarthi
Keyword(s):  
Cloud Computing ◽  
Success Rate ◽  
Real Time ◽  
Virtual Machines ◽  
Resource Provisioning ◽  
Real Time Scheduling ◽  
Scheduling Model ◽  
Physical Resources ◽  
Time Scheduling ◽  
Deadline Constraints

Virtualization is critical to cloud computing and is possible through hypervisors, which maps the Virtual machines((VMs) to physical resources but poses security concerns as users relinquish physical possession of their computation and data. Good amount of research is initiated for resource provisioning on hypervisors, still many issues need to be addressed for security demanding and real time VMs. First work SRT-CreditScheduler (Secured and Real-time), maximizes the success rate by dynamically prioritizing the urgency and the workload of VMs but ensures highest security for all. Another work, SA-RT-CreditScheduler (Security-aware and Real-time) is a dual objective scheduler, which maximizes the success rate of VMs in best possible security range as specified by the VM owner. Though the algorithms can be used by any hypervisor, for the current work they have been implemented on Xen hypervisor. Their effectiveness is validated by comparing it with Xen's, Credit and SEDF scheduler, for security demanding tasks with stringent deadline constraints.

Real-Time Scheduling for Xen-ARM Virtual Machines

2014 ◽  
Vol 13 (8) ◽  
pp. 1857-1867 ◽  
Author(s):  
Seehwan Yoo ◽  
Chuck Yoo
Keyword(s):  
Real Time ◽  
Virtual Machines ◽  
Real Time Scheduling ◽  
Time Scheduling

scholarly journals Efficient Fuzzy Based Real Time Scheduling of Workflows on Cloud

2019 ◽  
Vol 8 (6) ◽  
pp. 221-225
Keyword(s):  
Fuzzy Logic ◽  
Real Time ◽  
Virtual Machines ◽  
Scheduling Algorithm ◽  
Uncertain Data ◽  
Service Level Agreement ◽  
Service Level ◽  
Real Time Scheduling ◽  
Inaccurate Data ◽  
Time Scheduling

The technological advancements in service oriented architectures have given rise to Cloud computing as a new platform in the area of distributed computing. Virtualization is a prominent technology adopted by cloud while providing pay as per usage model. Cloud provides the computing resources in terms of different type of virtual machines. VM migration is a fundamental phenomena in cloud systems while providing uninterrupted service and load balancing to its users according to service level agreement. The virtualization and migration poses many challenges and complexities because of many uncertainties. Uncertainties are the inaccurate data in the form of task parameters, variation in the VM performance etc. As the Fuzzy logic can be employed effectively in decision making with inaccurate data we propose fuzzy logic based real time scheduling algorithm to deal with the uncertainties. The proposed algorithm in this paper performs in a better way in meeting of deadlines of real time workflows under uncertain data and VM migrations.

Towards real-time scheduling of virtual machines without kernel modifications

ETFA2011 ◽  
2011 ◽  
Author(s):  
Mikael Asberg ◽  
Nils Forsberg ◽  
Thomas Nolte ◽  
Shinpei Kato
Keyword(s):  
Real Time ◽  
Virtual Machines ◽  
Real Time Scheduling ◽  
Time Scheduling
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