Am Thu, 13 Feb 2020 11:28:29 +0100
schrieb Jan Beulich :
> On 12.02.2020 15:22, Olaf Hering wrote:
> > With the script below, the formula may look like this:
> > - each vcpu needs 1MB extra memory
> > - each GB of a HVM domU memory needs 8MB extra memory
> > - each HVM domU needs 2MB extra memory
On 12.02.2020 15:22, Olaf Hering wrote:
> Am Wed, 12 Feb 2020 11:53:25 +0100
> schrieb Olaf Hering :
>
>> Is there a formula to calculate that amount of extra memory, is this
>> behavior documented somewhere?
See e.g. sh_min_allocation() and whatever its HAP counterpart is. But
this and hence ..
Am Wed, 12 Feb 2020 11:53:25 +0100
schrieb Olaf Hering :
> Is there a formula to calculate that amount of extra memory, is this behavior
> documented somewhere?
With the script below, the formula may look like this:
- each vcpu needs 1MB extra memory
- each GB of a HVM domU memory needs 8MB ext
I was made aware of the fact that Xen apparently loses memory as soon as domUs
are started. In my testing HVM domUs occupy much more memory than what was
configured for them. The expected memory footprint for a PV domU seems to match
the value in the domU config file.
My test host has 128GB and
