Nice reply Fernando On 01/16/2014 08:08 AM, Fernando Cassia wrote: > On Wed, Jan 15, 2014 at 3:56 PM, Ritesh Raj Sarraf <r...@researchut.com> > wrote: >> This would effectively allow saving some RAM, which as in today's config >> in VBox, might be blocked and idly wasted. > It is not wasted. It is reserved. If it's not reserved then another > app on the host OS could take it. And then what will happen when the > guest OS *thinks* it has some memory available but in fact does not? > Then the host OS would begin swapping to disk. Then performance will > suck, processes will hang on the guest OS, also slowing the host OS to > a crawl with all that memory swapping going on. > > If you are memory constrained, you shouldn't be doing virtualization > to begin with. > > Just my $0.02, on a personal level, speaking just as a end user. > > FC
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