Hibernation

  • Thread starter Thread starter Paul Lady
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Paul Lady

Can anyone please comment on how hibernation works in W2K?

I've posted other threads and not gotten any response.

My hibernation recovery is really slow (over three minutes) and I want to be
sure with a new system it is faster. I'm presently using an AMD 2+, ATA 100
and 1 gig of RAM.

What will make hibernation faster? Is cache a factor?

TIA, pjl
 
Paul Lady said:
Can anyone please comment on how hibernation works in W2K?
Click to expand...
Windows saves all volatile data in a file on disk.
Due to your amount of ram and presumaably a heavy fragmented file this
takes some time.

For that reaason my swap and hibernate files reside always on a small
own partition in the faster begin of the harddisk.
I've posted other threads and not gotten any response.

My hibernation recovery is really slow (over three minutes) and I want to be
sure with a new system it is faster. I'm presently using an AMD 2+, ATA 100
and 1 gig of RAM.

What will make hibernation faster?
Click to expand...
Less ram or above tips. A second fast hd for the two files will speed up
by reducing slow head movements of the system disk.
Is cache a factor?
Click to expand...
There are ata disks with 2048 and 8192KB of cache, the larger cache
might result in getting the maximum out of the disk when reading
consecutive blocks as is the case with the hiberfil.

HTH
 
A good drive writes at around 25MB/s (yes, I know specs say otherwise). 1
gig at 25 MB/s is about 40 seconds at least. Knowing that you probably have
the file slightly fragmented, most likely not on the best physical place,
around 10-15 MB is a real possibility. 10 MB is two minutes. Add the time
needed to prepare for hibernation, pause whatever needs to be paused, flush
cache, prepare hardware, I would say that 3 minutes is not far fetched for a
gig.

As it has been said before, having a dedicated partition helps a lot.
Different phy drive versus different partition doesn't count all that much.

If your hibernation file has trouble defragmenting, disable hibernation
(to kill hiberfil file), defrag and re-enable.

Also, it matters if you count from when you told it to hibernate or from
where the text displaying the swap starts. If you optimize with a fast
drive, around 1 minute of actual swapping is ok.
 
Thx to the responders in this group. Very helpful info. Guess the other
groups just did not know what to say.

I'll try the suggestions and see what I can accomplish.

I'm inferring here, but a faster processor and SATA would not seem to offer
as much help as the dedicated partition and the defrag improvements,
correct? See where I'm going here? Trying to justify upgrade!

pjl
 
My hiberfil is a gig! (hiberfil.sys)

Any suggestions on how to reduce the bloat? Have I got stuff in here I no
longer need or use? Like memory leak syndrome?

Thx, pjl
 
The only way to reduce the size would be to remove some RAM

--
Regards,

Dave Patrick ....Please no email replies - reply in newsgroup.
Microsoft Certified Professional
Microsoft MVP [Windows]
http://www.microsoft.com/protect

:
| My hiberfil is a gig! (hiberfil.sys)
|
| Any suggestions on how to reduce the bloat? Have I got stuff in here I no
| longer need or use? Like memory leak syndrome?
|
| Thx, pjl
 
Just like you said, try reducing the RAM. That takes a bit of doing to
extract the case from it's corner, etc, but I'll do that to see the effect.

I'm just amazed at the size, who would write code to fill the space
available?

Thx, pjl
 
Disabling hibernation (after just defragging) resulted in significant added
defrag action, and the total time (system hardware start to system
available) to come out of hibernation is half compared to before defrag.
BIG THANKS FOR THAT IDEA!

pjl
 
People write code! <VBG> No, really Windows uses pretty much all the
memory you install for whatever purpose it can to "speed things up". All
the apps you open, caching drive accesses etc. So when you "hibernate",
it stores the system memory literaly to the harddrive, so when you come
out of "hibernation" you pick up right where you left off.
 
Please remind me how to change the default location of the hiberfil to
another partition. I'm drawing a blank on this reassignment routine.

Thx, pjl
 
Paul Lady said:
Please remind me how to change the default location of the hiberfil to
another partition. I'm drawing a blank on this reassignment routine.
Click to expand...
Sorry, no way.

Just googled some sources stating the hiberfil.sys has to be in the
windows system partition.
 
Thx for the info. Some respondents mentioned this move as a way to speed up
hibernation.

Thx, pjl
 
Suspect they confused hiber.fil with pagefile.sys, which can be
relocated for performance reasons.

Paul said:
Thx for the info. Some respondents mentioned this move as a way to speed up
hibernation.

Thx, pjl
Click to expand...
 
Thx again Bob I, you have saved me lots of look time.

pjl

Bob I said:
Suspect they confused hiber.fil with pagefile.sys, which can be
relocated for performance reasons.
Click to expand...
 
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