1 / 20

Test Optimization Using Software Virtualization

Understand the concepts and benefits of virtualization for test optimization, including different approaches and product options. Reduce costs, energy consumption, testing complexity, and rack space requirements. Open source and commercial solutions available.

mwoodside
Download Presentation

Test Optimization Using Software Virtualization

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Test Optimization UsingSoftware Virtualization Frank Pacelli

  2. Agenda • Problem illustration • Virtualization defined • 4 virtualization approaches • Virtualized test platforms • Virtualization product options • Other options

  3. What is Virtualization? • Multiple OS or "Virtual Machines" installed on one physical machine. • VMs run in parallel to one another • VMs don't realized they are virtualized • Each VM is isolated from the others • The host simulates a hardware environment for each VM • 'Guest' OS may vary in type • Limited only by hardware

  4. Virtualization Approaches • Full system virtualization • Paravirtualization • Native virtualization • OS level virtualization

  5. Full-System Virtualization • Virtualization is transparent to virtual machine • Sophisticated software simulates hardware • 3 levels above hardware

  6. Paravirtualization • Underlying virtualization software exposes API • 'Guest' OS must be modified significantly to use this API instead of actual hardware • 3 levels above hardware

  7. Native Virtualization • Virtualization is transparent to virtual machine • Hardware handles routing of instructions to/from virtual machine • 1 level above hardware

  8. OS-level Virtualization • Only 1 OS actually installed • OS is capable of partitioning itself so it looks as if there are multiple instances • 1 level above hardware

  9. Virtualized Test Platforms • Virtualization can be used in countless configurations to optimized testing • Host OS is irrelevent

  10. Virtualization Products

  11. Other Options • Simulation • Attempt to model real behavior/data • Can only be used for unit testing • Partially real test setup • hybrid approach • partial real hardware/software  • partial simulators • partial stubs

  12. Summary • Virtualization is multiple OS sharing the resources of one machine • 4 approaches • Full system virtualization • Paravirtualization • Native virtualization • OS level virtualization • Many different configurations can be used to create the optimum test environment • Open source and commercial solutions available • Virtualizatiion reduces costs, energy consumption, testing complexity, and required rack space

  13. References • Swaminathan Seetharaman, Krishna Murthy B.V.S., "Test Optimization Using Software Virtualization" IEEE Software. Sep/Oct, 2008. Page(s) 66-69 • http://www.vmware.com/virtualization/  • http://wiki.openvz.org/Introduction_to_virtualization

More Related