RAM / Pagefile Query

Grieva3

Honorable
Apr 2, 2012
32
0
10,540
Hi, this is probably a total noob question, but thought I'd ask here as Google didn't come up with the answer.

I was messing about the other night with the MSI AB OSD while gaming (Tomb Raider) just to see what was being used in my system. Now I can't remember the exact numbers but it basically said I was using X amount of RAM and X amount of Pagefile. The amount of RAM that was being used was no where near the max (16GB DDR3 1600Mhz), though I can't remember the exact amount. It also said I was using about 3GB of Pagefile.

My question is why would I be using any Pagefile if I was using no where near my max amount of RAM? I always thought Pagefile was only used if the RAM limit was it.

Cheers :)
 
Solution
When applications make large memory reservations, Windows reserves those against available swapfile space until the memory actually gets used. This way, if a different application reserves memory and actually starts using it first, Windows can immediately give it some of the unused RAM instead of having to swap pages out from the other program first.

InvalidError

Titan
Moderator
When applications make large memory reservations, Windows reserves those against available swapfile space until the memory actually gets used. This way, if a different application reserves memory and actually starts using it first, Windows can immediately give it some of the unused RAM instead of having to swap pages out from the other program first.
 
Solution
Linus :)


Very good.