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Cloud Compution

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Submitted By sheikh91
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Cloud computing is a new area of research currently being studied [1]. Basically it’s not a technology it’s a computing model. We can also define Cloud computing as both the applications delivered as services over the internet and the hardware and system software in the data centers that provide those services [2]. OR type of parallel and distributed system consisting of a collection of interconnected and virtualized computers that are dynamically provisioned and presented as one or more unified computing resources [3].Cloud computing purely relies on the fact that sharing computing resources rather to have applications on local servers or devices if resources are not equally distributed then this will result in resource wastage. The cloud computing platform guarantees subscribers that it sticks to the service level agreement (SLA) by providing resources as service and by needs based on the broker policy[4]. So in order to get maximum benefit from cloud computing there is need to dynamically balance the load among servers and improve utilization of resources. There are still some areas that are needed to be focused on in cloud computing.
 Resource Management
 Task Scheduling
The task scheduling goals of Cloud computing is provide optimal tasks scheduling for users, and provide the entire cloud system throughput and QoS at the same time. Scheduling is the process of allocating tasks to available resources on the basis of tasks need [5].The main purpose for scheduling is to maximize the utilization of resources. Following are the needs of job scheduling in cloud computing:

CPU utilization – keep the CPU as busy as possible (from 0% to 100%)
Throughput – # of processes that complete their execution per time unit
Turnaround time – amount of time to execute a particular Process
Waiting time – amount of time a process has been waiting in the ready queue

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