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A Scheduling algorithm for Multi-Tenants Instance- Intensive Workflows |
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PP: 99-105 |
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Author(s) |
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Lizhen Cui,
Tiantian Zhang,
Guangquan Xu,
Dong Yuan,
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Abstract |
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| As a key service model in cloud computing, SaaS applications are becoming increasingly popular. Multi-tenancy is a
key characteristics of SaaS applications. Business processes play a key role in SaaS applications because of the composability and
reusability of software services. This paper focuses on multi-tenants instance-intensive workflows system, in which workflows have a
large number of instances belonging to multiple tenants in a SaaS environment, and further proposes a scheduling algorithm for multitenants
workflow instances. This algorithm improves the quality of service (QoS) for tenants and saves the execution cost of workflows.
The simulation results demonstrate that the proposed algorithm guarantees the workflow execution conforming to the deadline set by
tenants, and reduces the mean execution time for tenants in high priority whilst saves the execution cost for service providers. |
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