Re: PATCH: flags, paging guest kernel, various

[Jens Nerche]

>It's not just a question of 'how much memory is free', because
>memory is *never* free normally.  It's a question of 'would it
>be more efficient right now to throw away some pages of the
>page cache, the buffer cache and/or swap out some other app, 
>than it would be to free pages from a VM' ...
Unless the host does swapping to hard disk, we can assume that
it has enough memory. Think, most os kernels will provide
information about used space on swap partitions/files. And also
the user can give hints whether a host application would run
much faster if it would have more memory...

jens