IRJET- An Energy-Saving Task Scheduling Strategy based on Vacation Queuing & Optimization of Resources in Cloud

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 06 Issue: 04 | Apr 2019 www.irjet.net p-ISSN: 2395-0072
© 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 1278
An Energy-Saving Task Scheduling Strategy based on Vacation Queuing
& Optimization of Resources in Cloud
Chanpreet Kaur1, Er. Simarjit Kaur2
1Student, BGIET, Sangrur
2Professor, BGIET, Sangrur
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Abstract - Energy consumption in cloud computing systems
has been the major concern. One of the most important tasks
in cloud computing is the optimization of energy utilization
and have a resultant green cloud computing. There are
number of techniques as well asalgorithmsusedtominimalize
the energy consumption in the cloud. Techniques comprise
DVFS, VM Migration and VM Consolidation. Algorithms are
Maximum Bin Packing, Power Expand Min-Max and
Minimization Migrations, Highest Potential growth, Random
Choice. The main aim is to optimize cloud’s energy utilization.
This paper offers resource allocation technique that
maximizes the efficiency of the system. Here, we offer two
energy-conscious task consolidation heuristics that target to
maximize the resource utilization and then explicitlytake into
consideration both idle and active energy consumption. This
paper presents the proposed model for Vacation queuing and
Cloud Task Scheduling. This approach has allowed us to
advance the quality of the service by decreasing the energy
consumption, the reduced processing time and more of
sleeping nodes that are helpful for increase in the resting time
and makes the system much more efficient.
Key Words: Resource allocation, Data Center
independent task scheduling, vacation queuing, Load
Balancer,Sojourntime,ACP(AverageComputingPower)
1. INTRODUCTION
Cloud computing could be defined as the technique for
providing pay-as-you-use type services and access to some
shared resources over a network based on the consumer
request with a minimum management risk”. The shared
resources comprise of the servers, applications, storage,
software, networks etc. all these resources can be
configurable on the user demand. Most of the individual IT
Companies and business enterprisers are opting for the
cloud so as to share the business information. Existing cloud
service provider are Amazon, Microsoft’s Windows Azure,
Google and IBM. The prime expectation of the cloud service
consumer is to have a fast, reliable, and the availableservice.
Cloud computing have been typically classified into two
types such as the types of services offered as well as the
location of the cloud. The services are classified as
Infrastructure as a service (IaaS), Platform as a service
(PaaS), and Software as a service (SaaS). Dependent on the
location, cloud computing could be classified into four types
like public cloud, hybrid cloud, private cloud and the
community cloud. High energy consumptionisleddueto the
various electrical equipment, the IT infrastructures, and the
randomness jobs would be presented on the computing
nodes. In order to handle the random nature of the tasks,
computing nodes would be in power on all the time because
the jobs would be incoming in any of the time forprocessing,
that leads to the high energy produced.
This thesis proposes the model for the Could Task
Scheduling dependent on the Vacation Queuing. This has
permitted to improve the quality of service by minimizing
the energy consumption, the reduced processing time and
more number of the sleeping nodes that are helpful in
increasing the resting timeof a systemandmakesthesystem
much more efficient. Based upon the different properties of
the user tasks, the load balancer would be used in the
proposed method that will take the user tasks and assign to
the server side the computing nodes dependent on the tasks
properties. The server sides nodes are also divided into the
two parts the heavy and small nodes. The simulation results
illustrate that the proposed algorithm could reduce the
energy consumption of the cloud computing system
efficiently while meeting with the task performance.
Fig-1: Cloud Computing
2. LITERATURE SURVEY
One of the task in order to reduce the energyconsumptionin
the cloud system has tend to consolidate the VM in PM, that
is, concentrating on the workload in a fewest possible PM.
Hence, the energy consumption would be reduced. The
drawback is that the performancesystemcanbeharmedand
for this reason, working is done on the allocation resources.
To explain it is, distributing VM through a system as
efficiently as it is possible. Resource management has been

the core function of any system and affects the three main
principles for the evaluation of a system: cost, functionality,
and performance. Some inefficient resource management
has the direct undesirable effect on the performance as well
as the cost and an unintended effect on the functionality of
the given system. Resource-allocation studies show the
techniques in order to monitoring the availability system
and performance. On the otherhand,theproposetechniques
for control of the energy consumption in the cloud systems
through resource management. Referringtoperformance as
well as the availability system, they make use of the
centralized model of a system, where there is the central
entity, that knows the system state every time. The
drawback of these techniques has beenthattheknowing ofa
system state is mandatory to make some decision. Whereas,
this fact also implies to the decision-making that takes place
more slowly, and as a result the internal communication
network becomes slow. Moreover, it is not taken into
consideration the energy consumption in the decision-
making.
3. APPROACH
In order to solve the above problem, the advantage of the
vacation queuing model is taken in order to analyse the
energy consumption of the cloud computing system, and
present the task scheduling algorithm dependent on the
similar tasks. The main contributions include:
a) First attempt is done to apply an exhaustive service, the
vacation queuing theory to the model of the cloud
computing system; in augmentation to this, considering
the various states of the compute node, the energy
consumption characteristics, and the latency duringthe
state transition of the cloud computing system that is
heterogeneous in nature, improvements in the vacation
queuing theory by addition of idle period when no tasks
arrive at the compute node, the node goes through the
period of some idle time despite of enteringthevacation
at once so as to avoid frequent switches amidst the
different states.
b) Analyzation of the expectations of task, sojourn
time, and the energy consumption of the cloud
computing system dependent on the busy period and
cycle under a steady state. Dependent on the analysis of
partial derivatives of the energy consumption with
relation to the variance of service time and idle time, it
can be observed that energy can be saved by reduction
in the variance of the service time with the scheduling
tasks.
c) Based on the analysis, it is proposed that a task
scheduling algorithm should be based on the similar
tasks in order to optimize the energy consumption, and
evaluate performance of the proposed algorithm
through all the simulations.
4. RESEARCH METHODOLOGY
Researching the scheduling algorithms and selectingone
that is appropriate for the current cloud environment.
a) Implementing the enhanced energy saving task
scheduling algorithm with hybrid load balancer.
b) Testing the system using different quality metrics.
c) Presenting the results.
In this paper, we have tried to develop the better task
scheduling for cloud computing. Firstly, we worked on
researching the best scheduling policyincloudandfound
that load-balanced Vacation Queuing method would be
best as the VQ has very low energy consumption
compared to many otheralgorithmslikemin-minetc.and
the load balancing strategy aids in the average load over
each node in the cloud therefore preventing some extra
sojourn time. So, we have proposed a new load balancing
shared with the algorithm.
5. NEED OF NEW SYSTEM
In the task scheduling algorithm, the tasks have been
assigned to various compute nodes. There is a concept of
the power consumption during the changing of the state
and the concept of similar task says that these tasks can
be scheduled alongside. This has been the poor concept
as it has a few disadvantages. Firstly, in case the low
energy tasks are assigned to low power systems there
would be a cluttering as the tasks would fill up all the
smaller nodes. Secondlydisadvantageis,ifthelowenergy
tasks gets assigned to the high energy consumption
nodes, then there would be more of the power
consumption, that is a poor methodincloudcomputingin
order to process the number of tasks on the server side.
To cope up with the situation, it is suggested to make
improvements by adding the load balancer and the task
scheduling strategy correction that can equally load
server sides nodes in order to communicate with the
processing tasks according to their needs.
6. RESULTS
Fig- 2: Cloud Task Scheduling based on Vacation
Queuing

The figure 1 shows the GUI having options like: simulate
vacation queuing, simulate our method, plot energy
consumption graph, plot total processing time graph and
plot sleeping nodes per roundwhichareusedtosimulate the
method.
Fig-3: Simulation of the Vacation Queuing Algorithm
Fig- 4: Simulation of the Proposed Method
Fig- 5: Energy Consumption with 20 simulation rounds
Fig- 6: Code for Simulation
Fig-7: Processing Time
7. CONCLUSIONS
In this thesis, we proposed a method for the Cloud Task
Scheduling dependent on the Vacation Queuing. In this
proposed method the results are farbetterthantheprevious
task scheduling method. Under vacation queuing method,
the sojourn time is collected from waiting time in the local
queue of the compute node as well as the service time of the
performing tasks node. The time and power required to
switch state have also been different. Each compute node
does maintain the task queue.
In the purposed technique on taking modification to the
vacation queuing method in order to obtain the desired
results in both the process optimizationandenergy efficient.
In this the balance threshold can be divided inthe number of
nodes to two different parametersbasedupontheirsoftware
and hardware specifications. By using the energy consumed
and the processing time in order to execute the tasks has
been very less.
These results are more promising, we know in the proposed
method that energy consumption is less, reduced the
processing time and the number of sleeping nodes are more
that are helpful in increasing the resting time of system and
makes it more efficient.

8. FUTURE SCOPE
For the future work, we would like to present more of the
intelligent techniques in order to improve the quality of
service (Qos).
The research work can be stated as given below:
a) One extra load balancer can be used to distribute the
task over the computer nodes very effectively.
b) On the computing nodes, the virtual machine can then
be created and the different algorithms can be used in
order to assign the tasks.
The virtual machine can also be created by defining the
different configurations of the computing nodes on both the
larger and smaller nodes.
9. ACKNOWLEDGEMENT
We are grateful for the stimulating discussions and support
by Sunny Kumar. This paper is implemented under the
guidance of Er. Sunny Kumar Bansal whoisDirectorofCyber
Space Technologies, Bathinda.
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