Re: [libvirt] [PATCH] docs: correct setmem text plus expand setmaxmem text
On 20/01/2011, at 11:30 PM, Matthias Bolte wrote:
2011/1/19 Justin Clift <jclift(a)redhat.com>:
> This completes the man page updates required for BZ # 622534:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=622534
> -Change the maximum memory allocation limit in the guest domain. This should
> -not change the current memory use. The memory limit is specified in
> -kilobytes.
> +Change the maximum memory allocation limit for an active guest domain.
> +
> +Some hypervisors require a larger granularity than kilobytes, and requests
> +that are not an even multiple will either be rounded down or rejected. For
> +example, vSphere/ESX rejects the parameter unless the kB argument is evenly
> +divisible by 1024 (that is, the kB argument happens to represent megabytes).
Actually vSphere/ESX truncates in this case. It rejects in other cases
(virsh define).
As Dan suggested, I might change this to round up.
With vSphere/ESX, does the virsh "setmaxmem" command work on running guest
domains, or only inactive ones, or ?
I'd *really* like to update the man page docs around this in the next few days, and
I'm still not sure what this command is actually doing in the real world. Heh. ;(