Planet Lab WorkLoad Format

[siddharth jain]

Can anyone explain me the format of workload file for planetlab?
i.e.  for files    /CloudSim2/examples/workload/planetlab/20110303
And how are they read in cloudSim?

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Siddharth Jain
Final year,B.Tech
Computer Engineering
M.N.I.T Jaipur

[Anton Beloglazov]

Hi Siddharth,

These files contain CPU utilization values measured every 5 minutes in PlanetLab's VMs. CloudSim includes a class called UtilizationModelPlanetLabInMemory, which can be used to read those workload traces. You just need to supply the path to a workload trace file when creating an object of the class, and it will automatically read the data from the file. Next, you need to pass the created object to a Cloudlet object and send it to a VM. Once given resources, this Cloudlet will generate the CPU utilization according to the provided CPU utilization trace.

Best regards,

Anton

[sco...@campus.ie]

Anton,

If 288 CPU values are in each cloudlet i.e. sufficient to read a value every 300 seconds for the 24 hour simulation can you explain why the total number of VMs at the start is reduced as the simulation proceeds? Is there a 1-2-1 relationship between the cloudlet and a VM? 

[ehsan.c...@gmail.com]

Hi,

my NonPowerAware cannot be executed and netbeans says there is no files (null) in the files[] (java.io.File[] files = inputFolder1.listFiles();)

[Saeed Javanmardi]

Dear Anton
Hi.
Would you please give us a simple cloudsim source code which uses Planetlab Workload?
Thanks for your kindness.

[Anton Beloglazov]

Hi Saeed,

The PlanetLab workload is simulated using the UtilizationModelPlanetLabInMemory class: https://code.google.com/p/cloudsim/source/browse/trunk/modules/cloudsim/src/main/java/org/cloudbus/cloudsim/UtilizationModelPlanetLabInMemory.java

It's used in all the examples in the following package: https://code.google.com/p/cloudsim/source/browse/#svn%2Ftrunk%2Fmodules%2Fcloudsim-examples%2Fsrc%2Fmain%2Fjava%2Forg%2Fcloudbus%2Fcloudsim%2Fexamples%2Fpower%2Fplanetlab

Best regards,

Anton

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[elhossiny ibrahim]

when i import it in my example error message say that "The import org.cloudbus.cloudsim.UtilizationModelPlanetLabInMemory cannot be resolved"

please answer me