1 / 11

Modeling Host Load

Modeling Host Load. Peter A. Dinda Thesis Seminar 2/9/98. Outline. Why model host load? Desirable properties Modeling techniques Results of Markov modeling. Why Model Host Load?. [t min ,t max ]. ?. Load partially determines exec time Benchmarks for trace-based simulation

caroleb
Download Presentation

Modeling Host Load

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. Modeling Host Load Peter A. Dinda Thesis Seminar 2/9/98

  2. Outline • Why model host load? • Desirable properties • Modeling techniques • Results of Markov modeling

  3. Why Model Host Load? [tmin,tmax] ? • Load partially determines exec time • Benchmarks for trace-based simulation • Classification scheme for load traces • Generalization of simulation results • Performance in terms of model parameters

  4. Desirable Properties • Classification power • Few parameters • Significant properties of original traces • Generation of load traces • Traces with similar significant properties • Prediction of load • Mean square error sense

  5. Modeling Techniques • Markov models • Stochastic processes • AR, MA, ARMA, ARIMA, ...

  6. Markov Modeling • Simple model • Discretized load levels map to states • O(n^2) transitions • Vector model • State includes last d discretized levels • Capture momentum, acceleration, ... • O(n^2d) transitions • 39 load traces (1 Hz sample rate, 1 week)

More Related