[pve-devel] Error in PVE with win2008r2 and 256GB RAM

[Cesar Peschiera]

I am testing startup and power off the VM frequently (some minutes between 
these actions).

Moreover, i manually have resized the page file of Windows Server to 10 GB, 
and configured with 62 GB. RAM (63488 MB. RAM), now i can see that the 
Windows Server start with 100% of CPU, and after of two minutes more or 
less, the processor returns to a normal state.

Here comes the important thing of side of PVE:
In paralel to this strange behavior, htop is showing that the use of the 
memory is growing in each second that elapses, and when his memory bar say 
that have used "63964/257912MB", the consumption of processor of this VM 
returns to normal state.

As a second test, after of see all these behaviours, I log to Windows 
Server, and htop show me a high consumption of many threads of processors 
(+/- 50%), but after that the session was initiated, the consumption of 
processors returns to normal state.

Maybe KVM or PVE have problems for manage lots RAM memory with numa enabled 
in the bios of the Server, but in am not sure.

Any suggestions?

----- Original Message ----- 
From: "Lindsay Mathieson" <lindsay.mathieson at gmail.com>
To: <pve-devel at pve.proxmox.com>
Sent: Sunday, November 30, 2014 1:09 AM
Subject: Re: [pve-devel] Error in PVE with win2008r2 and 256GB RAM

On Sun, 30 Nov 2014 03:56:08 AM Daniel Hunsaker wrote:
> What about inside the VM? It's expected that the VM itself will consume 
> all
> CPU since that's the reported issue, and `/usr/bin/kvm` is the process the
> host runs the VM in.

Because a errant process can consume all cores within the VM

>the cpu go to the 100% in use,

Depends whether he means the Host CPU or the CPU assigned to the VM
-- 
Lindsay



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