Hello,
I have been investigating ways in collecting performance
statistics of Guest domains running under Xen.
1) I am interested in finding out whether there is a way to
obtain the current memory usage (not the amount allocated) for each guest domain?
Xentop and other utilities display the amount of memory/RAM
allocated to a domain, but not the amount of memory in use that you would see
via Windows Task Manager for example.
I assume the RAM in use value is impossible to obtain from
Xen, because Xen does not know how much memory the Windows/Linux domain is
actually consuming.
2) I am currently using ntfsresize to obtain the amount of disk
space in use for a guest domain, however if the Windows guest is writing to the
disk at the time this collection fails with a consistency error (a re-try a few
moments later will usually succeed).
Is there a more suitable way to obtain disk space in use information
of a Windows guest?
Cheers,
Andrew