Features of Private and Public Clouds

  • Naresh Kumar Sehgal
  • Pramod Chandra P. Bhatt


In this chapter, we start by looking at the expectations of Cloud Computing customers, in terms of interoperability, reliability, and performance. Cloud Computing performance has inherent variability. An actual study showing performance variations in Public Clouds will be presented. This study involved measuring performance samples over 3 months, and we observed large performance variations. More than 350 samples were collected over a quarter, on different days and times, to minimize the temporal dislocations. Wide variations were seen across the same type of machines in a Cloud for the same vendor, and even on the same machine over time. This study demonstrates how an end user can measure Cloud Computing performance, especially exposing the performance variability.


  1. 1.
    Jackson KR et al (2010) Performance analysis of high performance computing applications on the amazon Web Services cloud.
  2. 2.
    Skinner D (2005) Integrated performance monitoring: a portable profiling infrastructure for parallel application. In: Proceedings of ISC2005: international supercomputing conference, Heidelberg, GermanyGoogle Scholar
  3. 3.
  4. 4.
  5. 5.

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Naresh Kumar Sehgal
    • 1
  • Pramod Chandra P. Bhatt
    • 2
  1. 1.Santa ClaraUSA
  2. 2.BangaloreIndia

Personalised recommendations