how to improve battery life macOS Sierra and Windows 10 (Parallels 13 Pro)

Discussion in 'Windows Guest OS Discussion' started by derek68, Sep 6, 2017.

  1. nrenter

    nrenter Bit Poster

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    I agree...battery drain after upgrading to Parallels 13 is brutal.
     
  2. nrenter

    nrenter Bit Poster

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    Done
     

    Attached Files:

  3. nrenter

    nrenter Bit Poster

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    Technical support ID number...241048255
     
  4. JasonA4

    JasonA4 Bit Poster

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    Hello I created a battery log based on the requirements. I recorded the battery stats for an hour and in that time my battery went from 100 to 50%. the file is 12.4Mb how do I upload it?
     
  5. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    241
    Thank you very much, @nrenter! We will investigate and let you know the results.
     
  6. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    Hi @JasonA4, you may use any convenient file share (sorry we don't have one temporarily), for example https://uploadfiles.io/
    Please do not forget to send us a technical report as well (Help > Send Technical Data...).
     
  7. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    241
    @nrenter, can you please also send me an output of the Terminal.app command below:

    ioreg -l | grep Capacity
     
  8. nrenter

    nrenter Bit Poster

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    Nicholas-MBP:~ Nicholas$ ioreg -l | grep Capacity

    | | "MaxCapacity" = 5355

    | | "CurrentCapacity" = 5302

    | | "LegacyBatteryInfo" = {"Amperage"=0,"Flags"=5,"Capacity"=5355,"Current"=5302,"Voltage"=12733,"Cycle Count"=324}

    | | "DesignCapacity" = 6330
     
  9. FrodoN

    FrodoN Bit Poster

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    I have the same problem
     
  10. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    241
  11. JasonA4

    JasonA4 Bit Poster

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    Dmistry,

    This is the link https://ufile.io/o76wv

    Anything you can do to increase battery life would be great this basically means you can't run parallels without being connected to power...
     
  12. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    Thank you very much, Jason, but we also need a problem report collected right after collecting the logs, please..
     
  13. JasonA4

    JasonA4 Bit Poster

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    Okay find attached a new battery log -- I worked primarily on Mac apps but had PPT open https://ufile.io/8hnz5

    I will also send technical data now - report number is 243048374
     
  14. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    241
    Thank you! Here's the summary from our Engineering Team.
    Based on the logs that have been provided, a workload in guest OS running inside Parallels Desktop involves on average 30% utilization of one CPU thread plus multimedia timer is enabled in guest Windows. Multimedia timer is a high resolution timer, that is enabled by some applications, primary those, that deal with the real-time multimedia workloads. It causes an excessive number of idle/running transitions, which impact host OS X power efficiency. Please note, that it is not possible to fully mitigate it without an adverse impact on those real-time multimedia workloads, like sound playback or recording.

    Please note, that the battery current maximum capacity is now 15% below its design capacity, while new batteries use to be around 5% above. The logs indicate, that within an hour your battery had went down from 3241 mAh to 1947 mAh, which implies utilization of 1300 mAh. Given the design capacity of 6330 mAh, it should be around 5 hours from a full charge at the design capacity, which is 1.5-2 times short of what Apple claims. Given that the particular workload is more power intensive, than an average office one, it does not look that unexpected. Please note, that there are indeed no other notable power consumers except the VM process.
     
  15. Dmitry@Parallels

    Dmitry@Parallels Parallels Support

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    241
    Thanks, Jason! The battery went from 3899 mAh(around the full charge) to 1702 mAh within an hour according to the logs provided. It implies utilization of 2100 mAh. The battery itself is around 10% below its design capacity, which should be around 4315. The workload implies, that VM persistently utilizes 100-120% of 1 CPU thread. It looks like a rather heavy load. However, other than the VM process, there are Firefox and Safari (that consume a lot of power accidentally, perhaps, when they are utilized) and Duet (which either steadily consumes notable amount of CPU or drains a lot accidentally).

    Can you please advise what programs are you using in Windows VM?
     
  16. JasonA4

    JasonA4 Bit Poster

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    5
    Hi Dmitry,

    I'm primarily using my Windows OS for MS Office (where Mac versions don't exist or are not fully functional). I mostly use PowerPoint, Visio and Project (although primarily PowerPoint). I will occasionally also use IE11 or Edge for some of my software. I am happy to remove shut off any apps that are draining my battery in Windows that won't effect either of those products. I will of course still need access to explorer and network connections.

    Let me know. Is there anything I should be contacting apple about?
     

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