overview on cloud computing and performance testing

7/28/2019 Overview on Cloud Computing and Performance Testing

1/20

Copyright IBM Corporation 2011

IBM TESTING SERVICES - GLOBAL DELIVERY INDIA

Unlock the power of Sharing

Overview on Cloud Computing

and Performance TestingBy Harish Negi


2/20



Learn. Reuse. Excel22

Agenda

What is The Cloud?What is Cloud Computing?

Benefits of Cloud Computing

Risk/Concerns of Cloud Computing

What things are the same about testing cloud solutions?

What is different about testing cloud solutions?

Testing Phases

Key Characteristics of the Cloud

Performance/Load Testing

Performance Testing in the Cloud

Performance Testing Scenarios

Testing on-premises applications from the cloud

Testing Cloud Application and Services

Testing Cloud and on-premises Applications

Cloud Performance Testing Challenges

Cloud Performance Testing Solutions


3/20




What is The Cloud?

Internet (The Cloud) accessible solution

Off-premise multi-tenant architecture

Accessed via a browser (PC or Wireless)

Delivered as Software as a Service (SaaS) ,

Platform as a Service (Paas)

Infrastructure as a Service (Iaas)

Common cloud companies are:

Google, Amazon, Microsoft, IBM, HP and Salesforce


4/20




What is Cloud Computing?

Forrester defines cloud computing as:

A pool of abstracted, highly scalable, and managed compute infrastructure

capable of hosting end-customer applications and billed by consumption.


5/20




Benefits of Cloud Computing

Scalability The distributed nature of Cloud solutions allow utilization to be spread

evenly amongst available servers meaning applications can scale on demand.

Location independent access Using thin clients or virtualization. The only limitation

being internet access.

Reduced cost of ownership Using service providers with currently existing Cloud

deployments means the need to own hardware to support the Cloud solution

can be almost entirely removed.

Server efficiency/utilization The spread of server workload improves server

efficiency and increases utilization of otherwise lesser used servers producing greater

return on investment.


6/20




Continue...

Green IT The reduced requirement for hardware, implementations and location

dependence means business can reduce the environmental impacts of its IT

infrastructure.

Instantly deployable environments Environments can be built and deployed for

specific needs such as test or deployment. The use of virtualization using the Cloud

means that these environments can be scalable to production size and deployed within

far reduced timescales.

Reduced maintenance cost The centralization of all IT components means that

maintenance can be carried out centrally on a one time only basis. The maintenance

is then mirrored in all end user instances of that Cloud solution.


7/20 Copyright IBM Corporation 2011



Risk/Concerns of Cloud Computing

Lack of control When IT infrastructure is outsourced to an external third party how

does the business maintain control of their data, impact down time, drive

technology change or influence decisions which may impact their solution?

Security How can business ensure the potentially sensitive information which

traverses the cloud is safe and secure?

Privacy concernsWhat can business do to maintain the privacy of their users and

information when using the cloud?





Continue

Data Integrity When using third party solutions for Cloud Computing whatassurances

do businesses have their valuable data remains intact?

Availability Cloud Computing solutions rely on the availability of their infrastructure to

be able to function. Should a business critical Cloud Solution be unavailable

for any time, what is the business impact?

Business Acceptability How sure can a business be that their third party solution issuitable for its intended use?





What things are the same about testing

cloud solutions? Requirements coverage based testing

Risk-based structured test approach

Test Plan / Test Phases

Test Cases / Test Data / Test Automation

Defect Management / Functional Test

Use of off-shore resources / Virtualization

Politics {Quality / Schedule / Resources}





What is different about testing cloud

solutions?

Shared multi-tenant test environments

Security (Test User IDs / SSO)

Integration of on/off premise systems

Performance / volume test

Defect isolation

Documentation of Out Of the Box reqs

Release Management





Performance/Load Testing

Traditionally, to support such a test, you would need the following components in place:

A good load-testing software

Sufficient load-testing hardware for your load-testing environment

Target testing hardware similar to your production hardware for your target-test

environment with your software installed

Sufficient bandwidth for realistic simulation

Skilled professionals to run, monitor and analyze the results of the tests

Other equipment to simulate realistic environment





Key Characteristics of the Cloud

Elasticity

Accessibility

Efficiency

Global Delivery

Immediacy


13/20




Performance Testing in the Cloud

Test planning

Test development and construction

Test execution

Test result analysis and reporting


14/20




Performance Testing Scenarios

Testing on-premises Applications from the Cloud


Testing Cloud and on-premises Applications


15/20




Testing on-premises applications from the

cloud


16/20






17/20




Testing Cloud and on-premises

Applications


18/20




Cloud Performance Testing Challenges

Firewall exceptions and remote configuration

Storage and bandwidth costs

Cross cloud alignment bottlenecks

Failover Testing

Elasticity and scalability

Application Tuning


19/20




Cloud PerformanceTesting Solutions

HP (Loadrunner)

IBM (Rational Performance Tester)

Micro Focus (SilkPerformer CloudBurst)

SOASTA (CloudTest)


20/20




Thank You

overview on cloud computing and performance testing

Documents