Description

jmsw4bn

opened on Apr 26, 2020

Issue body actions

ISSUE

When I change the active state of a host.

Actual behavior

No extra power and time cost is spent.

Expected behavior

Actually, extra power and time cost is needed to power on/off a host, and a host cannot directly change from an active state to off state (and vice versa).
I scrutinize the source code, and find that, when setting a host active, the host is active immediately.
Accordingly to the actual situations, it will take tens of seconds to power a host on/off, and during such time extra power is consumed.

Therefore, I suggest to fix this problem to support accurate power-aware simulations.

Available Examples

• HostActivationExample.java

Related Issues

• Enable VmAllocationPolicy implementations to power Hosts on and off as required #128

Activity

1. manoelcampos

   added

   feature

   good-first-issueA good issue to start contributing to the projectA good issue to start contributing to the project

   help wanted

   on Apr 28, 2020
2. manoelcampos commented on Apr 28, 2020

   

   manoelcampos

   on Apr 28, 2020

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   Hello @jmsw4bn

   Thanks for reporting this issue. You're right. This is a feature inherited from CloudSim. Despite lots of bugs were fixed and new features included, Host's boot and shutdown processes are simplistic and don't consider the time and power consumption.
   But unfortunately, I won't be able to implement this feature in the short term.
   I hope to get some help from the community to implement that.
   If you're willing to do that and need some support, just let me know.
3. manoelcampos

   added

   powerIssues related to the Power ModuleIssues related to the Power Module

   on May 13, 2020
4. manoelcampos

   changed the title [-]The power and time cost is not considered, when powering on/off a host.[/-] [+]The power and time cost is not considered, when powering a host on/off[/+] on Aug 28, 2020
5. wadewaleganesh commented on Apr 2, 2021

   

   wadewaleganesh

   on Apr 2, 2021

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   I had used cloudSim in the past. And I would like to work on this feature.
6. manoelcampos commented on Apr 2, 2021

   

   manoelcampos

   on Apr 2, 2021

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   That is great. I think we could start by modeling the proposed solution. Do you have something in mind already?
7. wadewaleganesh commented on Apr 2, 2021

   

   wadewaleganesh

   on Apr 2, 2021

   Contributor

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   Currently I don't have a clear idea. I will start reading papers and information regarding

   • what all actions get run while starting and stopping the host
   • time required for all of these actions
   • if required we can simulate these actions too
8. manoelcampos commented on Apr 3, 2021

   

   manoelcampos

   on Apr 3, 2021

   Collaborator

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   The operations performed during startup and shutdown will vary depending on the host OS. Since we don't simulate OS specific features, we should follow a simpler approach.

   The startup up and shutdown time will vary according to the host capacity (CPU cores and MIPS). Host load will impact that too.
   If there are some papers related to that, it would be great.
   Anyway, we should create some interface and classes to model these behaviors, such as the ones that model power consumption (see PowerModelHost).

   This way, an initial class diagram would be great.
9. wadewaleganesh commented on Apr 14, 2021

   

   wadewaleganesh

   on Apr 14, 2021

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   Currently I am reading papers regarding that.

   Reacted by Manoel Campos
10. manoelcampos commented on Apr 14, 2021

    

    manoelcampos

    on Apr 14, 2021

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    Great, if you find some paper that is useful, please provide the DOI link here.
11. manoelcampos

    assigned

    wadewaleganesh

    on Apr 14, 2021
12. manoelcampos

    added

    in-progressSomeone has started to work on the issue. The progress may be available at the dev branch.Someone has started to work on the issue. The progress may be available at the dev branch.

    on Apr 14, 2021
13. wadewaleganesh commented on May 9, 2021

    

    wadewaleganesh

    on May 9, 2021

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    Unfortunately there are not many papers regarding the issue. I am studying the PowerModelHost
14. 11 remaining items
15. manoelcampos

    added 9 commits that reference this issue on Aug 4, 2021

    Initial changes towards cloudsimplus#238

    4d2cd00

    Initial changes towards cloudsimplus#238

    718ffb9

    Initial changes towards cloudsimplus#238

    da0f718

    Initial changes towards cloudsimplus#238

    2910e09

    Initial changes towards #238

    87ed103

    Initial changes towards cloudsimplus#238

    ed86f32

    = Close cloudsimplus#238

    409c9c6

    = Close cloudsimplus#238

    21de906

    = Close cloudsimplus#238

    0daf540
16. manoelcampos

    closed this as completedin #311on Aug 12, 2021
17. manoelcampos

    added a commit that references this issue on Aug 12, 2021

    = Close #238

    This issue will close once commit 5270e71 is merged into the 'master' branch.

    5270e71
18. manoelcampos

    added

    accuracy

    and removed

    help wanted

    in-progressSomeone has started to work on the issue. The progress may be available at the dev branch.Someone has started to work on the issue. The progress may be available at the dev branch.

    good-first-issueA good issue to start contributing to the projectA good issue to start contributing to the project

    on Sep 4, 2021

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