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  #1  
Old January 21st 14, 07:56 PM posted to alt.comp.os.windows-8
Ed Cryer
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Posts: 2,621
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I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.

Ed

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  #2  
Old January 21st 14, 09:48 PM posted to alt.comp.os.windows-8
Paul
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Posts: 18,275
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Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.

Ed


There's a section here on it. It still doesn't shine any light on
differences in the OSes as such. But does give some feeling
for how much dynamic range Windows 8 has for the page file setting.
Not only does it modify the size based on demand, but it also
modifies the sizing based on "crash history". It's the "crash history"
that would push it to use 1 x RAM.

"Page file size for 64-bit... Windows"
http://support.microsoft.com/kb/2860880

"Automatic memory dump:

The Automatic memory dump setting at first selects a Small memory dump.
a Complete memory dump... dump file of at least the size of
physical memory (RAM)...

System-managed page files:
Min Max
Windows 7 1 x RAM 3 x RAM or 4 GB
Windows 8 crash dump 3 x RAM or 4 GB
"

Your Windows 7 is using 1 x RAM. Your Windows 8 appears
to be selecting a size based on what it thinks it needs for
a crash dump. Maybe it is sized big enough for a kernel memory
dump and that is all, rather than a complete (1 x RAM) dump.

If you set the pagefile to zero on either OS, it just means
hobbling crash dumps.

If you have a large pagefile, and you select the option
to "clean pagefile at shutdown", that will seriously
increase the shutdown time. You can select an option
like that for security reasons (plaintext passwords
paged out to pagefile?).

Windows 8 actually has a total of three files, whereas
the other OSes have two (pagefile/hiberfile). The third
file on Windows 8 is a bit smaller.

"Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8"
http://www.thewindowsclub.com/hiberf...le-sys-windows

"The Swapfile.sys ... is used to Suspend or Resume
Metro or Modern Windows 8 apps."

And the part of the KB2860880 article, near the bottom, where it
says the fastest pagefile is selected by the OS, is
bull****. I've tested that here, and older OSes
continue to select the slower device. So when offered
a faster device, there's no guarantee the OS will notice
it is faster. It's almost like only certain types of
devices get measured correctly. It doesn't seem to me
that the OS uses a benchmark to decide what is "fast".

Paul
  #3  
Old January 21st 14, 10:25 PM posted to alt.comp.os.windows-8
s|b
external usenet poster
 
Posts: 1,496
Default Page file

On Tue, 21 Jan 2014 18:56:15 +0000, Ed Cryer wrote:

I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.


I have an SSD of 120GB which I use for W7 HP x64 SP1 and a SATA of 500GB
for data. I have 8GiB of RAM. No paging file is set for C: and for D:
it's set between 16 and 8.192 GiB. I don't care what is recommended. The
paging file is never bigger than 16 MiB. At this moment 6% of it is
used.

--
s|b
  #4  
Old January 21st 14, 11:40 PM posted to alt.comp.os.windows-8
Ed Cryer
external usenet poster
 
Posts: 2,621
Default Page file

Paul wrote:
Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.

Ed


There's a section here on it. It still doesn't shine any light on
differences in the OSes as such. But does give some feeling
for how much dynamic range Windows 8 has for the page file setting.
Not only does it modify the size based on demand, but it also
modifies the sizing based on "crash history". It's the "crash history"
that would push it to use 1 x RAM.

"Page file size for 64-bit... Windows"
http://support.microsoft.com/kb/2860880

"Automatic memory dump:

The Automatic memory dump setting at first selects a Small memory dump.
a Complete memory dump... dump file of at least the size of
physical memory (RAM)...

System-managed page files:
Min Max
Windows 7 1 x RAM 3 x RAM or 4 GB
Windows 8 crash dump 3 x RAM or 4 GB
"

Your Windows 7 is using 1 x RAM. Your Windows 8 appears
to be selecting a size based on what it thinks it needs for
a crash dump. Maybe it is sized big enough for a kernel memory
dump and that is all, rather than a complete (1 x RAM) dump.

If you set the pagefile to zero on either OS, it just means
hobbling crash dumps.

If you have a large pagefile, and you select the option
to "clean pagefile at shutdown", that will seriously
increase the shutdown time. You can select an option
like that for security reasons (plaintext passwords
paged out to pagefile?).

Windows 8 actually has a total of three files, whereas
the other OSes have two (pagefile/hiberfile). The third
file on Windows 8 is a bit smaller.

"Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8"
http://www.thewindowsclub.com/hiberf...le-sys-windows

"The Swapfile.sys ... is used to Suspend or Resume
Metro or Modern Windows 8 apps."

And the part of the KB2860880 article, near the bottom, where it
says the fastest pagefile is selected by the OS, is
bull****. I've tested that here, and older OSes
continue to select the slower device. So when offered
a faster device, there's no guarantee the OS will notice
it is faster. It's almost like only certain types of
devices get measured correctly. It doesn't seem to me
that the OS uses a benchmark to decide what is "fast".

Paul


Thanks, Paul.
I'll leave it set as it is then; ie. directly under the OS's control.

This seems one major difference between 7 & 8. From which we can
conclude that MS did a bit more than just camouflage 7 with a jazzier skin.

Ed
  #5  
Old January 22nd 14, 07:59 AM posted to alt.comp.os.windows-8
...winston‫
external usenet poster
 
Posts: 1,128
Default Page file

Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.

Ed

i3 Windows 8.1 Pro 4GB Ram
Software running - 2 Windows apps, iTunes, Internet Explorer, Excel,
Windows Live Mail (Hotmail accounts), Outlook 2013, PhotoGallery, and
SeaMonkey (news reader)

Page file recommendation = 3419
Currently allocated = 640

--
....winston
msft mvp consumer apps
  #6  
Old January 22nd 14, 10:27 PM posted to alt.comp.os.windows-8
Ed Cryer
external usenet poster
 
Posts: 2,621
Default Page file

Ed Cryer wrote:
Paul wrote:
Ed Cryer wrote:
I have a Win7 box and a new Win8 one. Both have 6GB RAM, but the
Windows-assigned page file sizes are very different.

recommended currently allocated
Win7 9130 6087
Win8 4079 1664

The Win7 seems spot-on to me. As for the Win8, well, I can't make head
or tail of it, and my instinct is to simply change it to 6GB.

Comments please.

Ed


There's a section here on it. It still doesn't shine any light on
differences in the OSes as such. But does give some feeling
for how much dynamic range Windows 8 has for the page file setting.
Not only does it modify the size based on demand, but it also
modifies the sizing based on "crash history". It's the "crash history"
that would push it to use 1 x RAM.

"Page file size for 64-bit... Windows"
http://support.microsoft.com/kb/2860880

"Automatic memory dump:

The Automatic memory dump setting at first selects a Small memory
dump.
a Complete memory dump... dump file of at least the size of
physical memory (RAM)...

System-managed page files:
Min Max
Windows 7 1 x RAM 3 x RAM or 4 GB
Windows 8 crash dump 3 x RAM or 4 GB
"

Your Windows 7 is using 1 x RAM. Your Windows 8 appears
to be selecting a size based on what it thinks it needs for
a crash dump. Maybe it is sized big enough for a kernel memory
dump and that is all, rather than a complete (1 x RAM) dump.

If you set the pagefile to zero on either OS, it just means
hobbling crash dumps.

If you have a large pagefile, and you select the option
to "clean pagefile at shutdown", that will seriously
increase the shutdown time. You can select an option
like that for security reasons (plaintext passwords
paged out to pagefile?).

Windows 8 actually has a total of three files, whereas
the other OSes have two (pagefile/hiberfile). The third
file on Windows 8 is a bit smaller.

"Hiberfil.sys, Pagefile.sys, Swapfile.sys in Windows 8"
http://www.thewindowsclub.com/hiberf...le-sys-windows

"The Swapfile.sys ... is used to Suspend or Resume
Metro or Modern Windows 8 apps."

And the part of the KB2860880 article, near the bottom, where it
says the fastest pagefile is selected by the OS, is
bull****. I've tested that here, and older OSes
continue to select the slower device. So when offered
a faster device, there's no guarantee the OS will notice
it is faster. It's almost like only certain types of
devices get measured correctly. It doesn't seem to me
that the OS uses a benchmark to decide what is "fast".

Paul


Thanks, Paul.
I'll leave it set as it is then; ie. directly under the OS's control.

This seems one major difference between 7 & 8. From which we can
conclude that MS did a bit more than just camouflage 7 with a jazzier skin.

Ed


In the root of the C drive there are 3 hidden files;
hiberfil.sys 4,978,552 KB
pagefile.sys 1,048,576 KB
swapfile.sys 262,144 KB

Now, that makes a bit more sense to me.

Ed

 




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