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xen-devel
Re: [Xen-devel] question on balloon driver
Jonas Appel wrote:
Hello,
I'm trying to get into the internals of xen and especially the balloon
driver. During the time I dealt with that, several questions came up:
* Does (and if yes, how) the balloon driver in an guest OS have to be
activated?
No. In Linux, it's a normal driver that's loaded and initialized during
system startup.
* Does the automatic release of memory from a guest OS to Xen already
work?
It depends on what you mean by automatic. I'm not sure anyone has ever
posted an automated memory balancer.
* Is the limit of 100 Guest OSs (as mentioned on
http://en.wikipedia.org/wiki/Xen_%28virtual_machine_monitor%29 ) really
hardcoded somewhere or is it more a practical value (or does the limit
not exist)?
It's a design goal, not a limit. I've heard of folks actually getting
more than 100 domains going at once (although the domains were not
full-blown linux instances).
Regards,
Anthony Liguori
Thanks in advance & regards,
Jonas Appel
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