Sleep V Hibernate


  1. Posts : 497
    Windows 10 Home x64
       #1

    Sleep V Hibernate


    wondering about these 2 standby modes, in all my years i have had no inclination use either.

    after being a little more curious and researching the difference between shutdown and restart operation, noticeably accessing boot or bios menus especially in WIN 10, i prefer to do a proper shutdown each time, time is of no consequence to me so have Fast Start Up disabled after realisIng i had a 6gb hibsys file on my C: which in turn null and voids Hibernate mode for system.

    i might start to use Sleep mode on my more portable laptop for the sake of saving battery but i would like to know if this mode also creates such huge files like Hibernate does. i do understand the power usage difference for each mode.

    all my computers & specs are in profile Album, this query is in regard to Win10 obviously.

    Cheers
    Rob.
      My Computers


  2. Posts : 15,441
    Windows10
       #2

    Sleep on a laptop is a low power mode but not as low as hibernate. You cannot save power by using it.
      My Computer


  3. Posts : 497
    Windows 10 Home x64
    Thread Starter
       #3

    so to put the computer to sleep has no power saving advantage to leaving it on...?

    i know hibernate uses less power when standing by.

    the main reason i dont want to use hibernate is i dont want fast start enabled so i can enter BIOS, BOOT MENU when ever i start instead of starting then restart to access as well as the huge hibernate file associated, i'm a tight @$$ with my storage space.

    if there is no power advantage using sleep then i'll just leave the machine on period.
      My Computers


  4. Posts : 42,734
    Win 10 Pro (22H2) (2nd PC is 22H2)
       #4

    If you use hibernate you can power down your PC completely. The entire state of your PC is saved to disk. In that sense it's more environmentally friendly.

    Sleep requires you keep the device powered.

    It takes longer to start from a hibernated state than sleep.

    Should your device lose power when in sleep mode, you will need to perform a cold boot. Not so if hibernated.

    If you retain the option to hibernate, a large file hiberfil.sys is required. It's there by default, and used for fast startup too.
    i would like to know if this mode also creates such huge files like Hibernate does.
    - whereas sleep holds data in RAM- hence power loss loses the saved state and a reboot is then required.

    People with SSDs may find they don't need to use hibernation, unless retaining the device's state when powered down is significant, as booting is fast. Naturally that's a personal decision.

    Similarly fast startup is pretty meaningless if you have a SSD, and indeed can be a disadvantage as sometimes using it causes problems.

    The option to use fast startup + hibernate - and hiberfil.sys- can be eliminated or restored thus:
    https://docs.microsoft.com/en-us/tro...le-hibernation

    Example: imagine you were travelling by air with a laptop, and wanted to resume with exactly the same state as when you left home. You want to put your laptop in your hold baggage- so you have to remove the battery. Hibernation would work. Sleep wouldn't.
    Last edited by dalchina; 02 Jul 2022 at 03:25.
      My Computers


  5. Posts : 497
    Windows 10 Home x64
    Thread Starter
       #5

    dalchina said:

    Example: imagine you were travelling by air with a laptop, and wanted to resume with exactly the same state as when you left home. You want to put your laptop in your hold baggage- so you have to remove the battery. Hibernation woudl work. Sleep wouldn't.
    ok that makes sense to me...

    i have disabled hibernate through power options unticking fast start up option. i also have the registry hacks to do same.

    i dont leave any of my machines in a state at shutdown that requires a fast start so to do a cold boot whenever is not a problem, i dont need instant on when i start the machine as a matter of a minute or 2 more doesnt bother me. to access BIOS and BOOT MENU is more attractive like i said before if i want to access these i dont really want to fast start just to restart to get there. the huge hibernation file really plays havoc with my OCD...lol

    conclusion: i'll leave FAST START disabled as my preference and forget that SLEEP even exists, i'll just close the lid to turn off display as that has to contribute to some kind of power saving in the long run.

    thanks for the assistance peeps
    Rob
      My Computers


  6. Posts : 15,441
    Windows10
       #6

    rooscoota said:
    so to put the computer to sleep has no power saving advantage to leaving it on...?

    i know hibernate uses less power when standing by.

    the main reason i dont want to use hibernate is i dont want fast start enabled so i can enter BIOS, BOOT MENU when ever i start instead of starting then restart to access as well as the huge hibernate file associated, i'm a tight @$$ with my storage space.

    if there is no power advantage using sleep then i'll just leave the machine on period.
    Duh - obviously putting it to sleep saves power - that's the bloomimg point! You said "i prefer to do a proper shutdown each time".

    Who in their right mind would leave a laptop on 24/7?
      My Computer


  7. Posts : 15,441
    Windows10
       #7

    dalchina said:
    Example: imagine you were travelling by air with a laptop, and wanted to resume with exactly the same state as when you left home. You want to put your laptop in your hold baggage- so you have to remove the battery. Hibernation would work. Sleep wouldn't.
    Most modern laptops no longer have removable batteries.

    Never thought about whether this would bar laptops from going in hol but I would never put mine in the hold anyway any more than I would put a wallet or car keys in hold (that is practically Darwin Association level stupidity).


    I treat my hold luggaged as "disposable" i.e. if lost or stolen, it is an inconvenience (that is what credit/debit cards are for) but not a disaster.

    In Europe, we have a saying "Breakfast in London, Lunch in Paris, Luggage in Rome" (and if you have ever been to CDG in Paris, you would know why - it has worst reputation in Europe for losing luggage LOL.
      My Computer


  8. Posts : 42,734
    Win 10 Pro (22H2) (2nd PC is 22H2)
       #8

    At one airport where I had my laptop in my hold baggage, I was asked if I had a laptop in my bag. I said 'yes', and that the battery was removed. Clearly the agent didn't believe me and asked me to get it out. I did, and she looked at me, and said, 'ah, you know the rules'.

    - the potential problem- a fire of course.

    What I didn't let on was that the laptop in question has both a small internal battery and a much larger removable one, which I didn't have with me to save weight & space. Oops.

    Anyway, the point there was not about airport rules, but to illustrate practically why hibernate might be useful compared to sleep.

    The risks wrt baggage now have multiplied this year given airport chaos and pictures of rooms full of abandoned bags- and even a recommendation to travel without checked in luggage at all. Should I fly again this year? (Earlier in the year, 3 flights- all ok- 15 mins thru Stansted check-in and security after my early train at 5:50am was cancelled...).

    I think I'll sleep on it.
      My Computers


  9. Posts : 497
    Windows 10 Home x64
    Thread Starter
       #9

    cereberus said:
    Sleep on a laptop is a low power mode but not as low as hibernate. You cannot save power by using it.
    this is what threw me and wanted to confirm and assumed this was the case, any of them 2 settings is better than just leaving the machine on using battery, so heres one for you

    Does the Sleep setting keep system files similar to Hibernate.

    cereberus said:
    Duh - obviously putting it to sleep saves power - that's the bloomimg point!
    i would've thought as much but finally a definitive answer, thankyou, that was like pulling teeth.

    cereberus said:
    You said "i prefer to do a proper shutdown each time"
    yes i did and i explained why, i'm not in that much of a hurry a few minutes dont matter to me to use FAST START UP to disable humongous hibernate files on C:, i run a tight ship here and OCD about HDD space, mind you i have about 8TB of external & internal drive storage not including my other 3 computers.

    i dont mind doing a cold boot at the start of the day and and full shutdown at the end of it, just in case i want to enter BOOT MENU or BIOS before firing up.

    cereberus said:
    Who in their right mind would leave a laptop on 24/7?
    why not, i have left a couple of my spare computers on for a few days at a time depending how i feel at the time.

    Sleep V Hibernate-spock-spock-star-trek-smiley-emoticon-000554-large.gif
    live long and prosper
    Rob
    Last edited by rooscoota; 02 Jul 2022 at 18:26.
      My Computers


 

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd
All times are GMT -5. The time now is 10:16.
Find Us




Windows 10 Forums