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Windows 7: What size should my paging file be if I've got 4GB of RAM?

1 Week Ago   #11

Windows 7 pro 64-bit sp 1

Quote   Quote: Originally Posted by Alejandro85 View Post
Windows is very good in using the pagefile, like chosing what to page out of RAM and when to bring in back, but the default "manage it for me" is a terrible solution, because it really means "use 3 times the RAM as page file", which is a poor choice of pagefile sizing.

Optimal pagefile size depends on RAM and the maximum commit limit, which in turn depends on your workload. There is no way Windows can estimate it, and is likely a leftover over the years of Windows evolution. A more appropriate "autosizing" algorithm would give more page file when there is less RAM, not the other way around.

That's how I feel. 3x physical memory would be 24 gb if you have 8 gb and that's a lot of wasted space. The more you have likely the less you'll need, depending upon normal usage. On my personal computer I don't us that much ram at any one time, the most being when I run a virtual machine, so likely the page file isn't used much. However I have to run so many programs at once for work that I usually at 75-80% of my ram so I probably have significantly more page file usage unfortunately. Considering how much slower it is to run virtual memory (even on a SSD) you want to minimize page file use. I think it's more important to have adequate memory than an insanely large page file. Such a large file was probably good when computers didn't have so much memory but times change.
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4 Days Ago   #12

Win 10 x64, Linux Lite, Win 7 x64, BlackArch, & Kali

Agree with Alejandro85!
My System SpecsSystem Spec
4 Days Ago   #13

Win 7 Professional 64 (Main PC)/Win 7 Home Premium 32 (Laptop)

When I was using Windows 7 Professional 64bit with 32GB RAM and Samsung SSD's Windows would create a huge pagefile (1.5 times RAM?). I ended up doing a custom pagefile - minimum 1024MB, maximum 5120MB. This seemed to work very well for me.

I could actually get away with no pagefile at all but opinions always seemed to differ on whether or not that was such a good idea so I settled for the custom setting above.

Windows 10 seems to be better at handling pagefiles than Windows 7 so I've left the setting at the default (still using 32GB RAM) which works well and doesn't use a huge amount of disk space like Windows 7 did on the default "let Windows handle it" setting.
My System SpecsSystem Spec

3 Days Ago   #14

Windows 7 Ultimate x64

Pagefile is where stuff goes when your RAM fills up. (Well not quite but it works out about the same way in this situation)

You're most likely using more than 4GB but less than say 20GB or even 10GB probably. Therefore you should set the pagefile at the excess of that amount beyond the physical RAM amount. 4-8GB sounds like a good idea, leaning towards the latter if you're often idling at 2GB+ RAM usage in the Task Manager graph. If you're on 32GB RAM, with most people's use patterns you're never going to fill that up even with prefetch except in case of a program bug, so the pagefile is unnecessary.

It's a bad idea to set pagefile at automanaged, because it means Windows will vary the size and fragment the pagefile, which stresses your HDD and further slows down paging.
My System SpecsSystem Spec

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