Information Technology Reference
In-Depth Information
small messages into one bigger to reduce the impact of latency, or by splitting up
bigger messages to deal with bandwidth limitations.
Developers should carefully evaluate the impact of multitenant behaviour upon the
application: generally not all data needs to be fully shared, but only within groups of
instances and here only parts of the data at different times. Keeping an eye on the
specific intention is a good way to reduce density concerns. For example, Google
docs share documents between groups of people, yet the only data that needs to be
communicated is the changes that are actually taking place in the document.
5
Conclusions
Clouds have been around for a considerable time now, but there still exists little
knowledge about their actual capabilities and limitations, let alone about how to
address them and which use cases are most suitable for it. More expertise needs to be
gathered about the essential core application logics that are most suited for clouds.
These core elements can be used as a basis to build up cloud applications, but also as
a means to quantify existing applications to assess their "cloud-suitability". The paper
presented provides an initial outline for identifying these cores by classifying the
main criteria constituting cloud application performance and behaviour.
Acknowledgments. The work presented in this paper was partially funded by the EC
research projects S(o)OS and PaaSage.
References
1. Huonder, F.: Parallelization for Multi-Core. Program Analysis and Transformation (2009)
2. Asanovic, K., Bodik, R., Catanzaro, B.C., Gebis, J.J., Husbands, P., Keutzer, K., Patterson,
D.A., Plishker, W.L., Shalf, J., Williams, S.W., Yelick, K.A.: The Landscape of Parallel
Computing Research: A View from Berkeley. EECS Department. University of California,
Berkeley (2006)
3. Schubert, L., Jeffery, K.: Advances in Clouds - Report from the second Cloud Computing
Expert Meeting. European Commission, Brussels (2012)
4. Miller, R.: Response time in man-computer conversational transactions. In: Proceedings
AFIPS Fall Joint Computer Conference, vol. 33, pp. 267-277 (1968)
5. Schubert, L., Kipp, A.: Principles of Service Oriented Operating Systems. In: Vicat-Blanc
Primet, P., Kudoh, T., Mambretti, J. (eds.) GridNets 2008. LNICST, vol. 2, pp. 56-69.
Springer, Heidelberg (2009)
 
Search WWH ::




Custom Search