Memory issue

[Louis54000]

Hi,

I have a PC with 16GB of RAM running a VM on Hyper-V. Right now Task Mannger reports 11.5/16.0GB used, but I frequently get "low memory" warnings from windows even with 4+GB of free RAM ... This causes crashs (freezes, apps using 1+GB of RAM exiting, black screens...).

So I looked in Ressource Monitor and I found that I had around 100MB free and the rest is Stand By.

Used memory is normal : around 4-5GB for Windows and 6-7GB for my VM.

Any ideas what causes this?

Now I have 0MB free memory, but still 4GB available

I can still open games and big programms but it eventually crashes.

On the attached screenshot :

Used is Utilisée

Veille is Stand By

Modifié is Modified (duh.)

Libre is Free

Disponible is Available

and a Mo is a MB

 

Thanks !

[snarkygoldfish]

i have had issues with this in the past, im MORE than sure youve try'd this but for me i literly just restarted my pc and it fixed it lol

[Louis54000]

I turn it off everyday so yeah I've tried that already... It's really wired and annoying because I mean 4gigs of ram available should not trigger a message telling me that I'm running out of ram!

[Beltboy]

This can be a difference between the reserved for VM and actually available memory, is it the VM's windows or the Hyper-V server that's reporting low memory?

 

Depending on how you memory reservations as set Hyper-V will allow the host server (or another VM) to use some of the memory that's allocated to the VM, meaning as far as the VM is concerned the memory "it has" is not in use but not available.

 

On the other side if you have reserved 90% of the hosts RAM for the VM with strict reservations Hyper-V will know the VM isn't using the memory but it won't touch it just encase the VM might want it so again the memory is not in use as far as it can see but is also not available.