Setting Win 7 paging file(s)

October 2, 2011 at 04:37:01
Specs: several
Windows 7 appears to allow a paging file on each drive.
I don't remember if I changed the default, but mine is
currently set to have a system-managed paging file on
drive C:, where Win7 resides.

Are the other drives listed only so I can change the
drive to one of them, or can there actually be a paging
file on each drive? If the latter, why?

-- Jeff, in Minneapolis


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#1
October 2, 2011 at 05:27:32
It is possible to have a pagefile on each drive and it might be beneficial under certain situations. But this will only be beneficial if pagefile IO is a performance bottleneck and it usually isn't. If you have a reasonable amount of RAM doing this is unlikely to have any real effect except wasting some disk space.

Note that to receive any benefit they must be physical drives, not partitions.

My standard recommendation concerning the pagefile:
Unless you have a very specific need, and you understand what you are doing, leave pagefile configuration on default settings. Most attempts to "optimize" the pagefile are wasted efforts.


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#2
October 2, 2011 at 06:37:27
I agree with what Mr. Miller is saying.....it is usually best to let Windows manage the page file. However to make changes; right click "computer"......select properties, .then down the left side..."Advanced system settings"...under performance click on "settings", then click the "advanced" tab and you see the page file settings click "change" to change the setting. Sorry for the repeat...looks like you already know the location of the paging file, but this does not let me delete the post....just edit?!

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#3
October 2, 2011 at 06:57:03
I currently only have two physical drives installed, but if I had several,
how might having a paging file on each of them provide a benefit over
only having a paging file on any one of them? I'm just curious that
Windows appears to provide this option.

-- Jeff, in Minneapolis


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#4
October 2, 2011 at 10:55:00
Having a pagefile on a other than the system drive allows Windows to access system or application files at the same time as the pagefile. If pagefile performance is a bottleneck, which it usually isn't, this would improve performance.


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