In article <190q7ywfch3tu.dlg@v.nguard.lh>, V@nguard.LH says...
>
> "jason_warren@ieee.org" <jason_warren@ieee.org> wrote:
>
> > Entering Hibernation mode on my speedy laptop used to take five
> > seconds. Now it's taking 20. There have been several Windows updates
> > so I suspect that may be the reason, but it got me wondering: is
> > there a way to record what's going on during that interval? The
> > screen goes blank as soon as I click.
>
> The more processes (programs, apps) you have running, the more memory
> that is occupied and has to be written to a file. More writes take more
> time. Also, the more processes that are running, the more that get a
> request to pause, and wait for them to pause, to have a stable memory
> image to copy to a file. Some processes are more responsive than
> others. Do you really need all those processes running again when you
> un-hibnerate?
>
> Have you performed any disk maintainance. You did not mention the type
> of storage media to where the hiberfil.sys file gets written. Could be
> HDD or SDD. For HDD, have you ran a 'chkdsk /r' to ensure all its
> sectors are in good condition? Have you defragged your HDD?
>
> Did you used to use hibernate before, or did you use hybrid sleep?
> Hybrid sleep does not fully shutdown the OS. The hyberfil.sys hibernate
> file gets written, but there is no shutdown process. Instead the
> computer goes into a low-power state. If there is no power outage, the
> computer remains in sleep mode ready to awaken very quickly (no need to
> read the hiberfil.sys file into memory). If there is a power loss, the
> hiberfile.sys file is available to restore the memory image. With
> hybrid sleep, there is no time spent waiting to suspend processes or to
> shutdown the OS.
>
> Did you add more system memory? The more there is, the more
> takes to write it to a file. The hiberfil.sys file size is about 40%
> the size of the system memory. There is some compression. On my system
> with 64 GB of system RAM, the hiberfil.sys is 26 GB in size. That is a
> huge file.
>
> <Aside> I don't ever hibernate my desktop PC, but shut it down if I
> won't be using it for awhile, like when away on vacation. Else, I
> leave it running 24x7. I don't even have it go into low-power mode,
> but some users want that (save a few pennies on lower power
> consumption, but it's trivial to me). If it were a mobile device
> instead of a desktop PC, and it used HDDs (spinners) instead of SSDs,
> yeah, I'd have it go into low-power mode to stop the HDDs from
> spinning. The gyro effect of spinning HDDs is why I use SSDs in
> mobile computers. I don't have to remember to sleep before moving the
> mobile computer. I really should disable hibernation, and delete that
> huge hiberfil.sys file. Also, for an SSD (I have a 2 TB NVMe SSD m.2
> memory card), 25GB is a hell of a lot of writes to stress the SSD

Thanks! That's a lot to chew on. Windows 10 Professional is it
- I'll take a look at the policy changes you suggest.