Stream mode. All output is sent to stdout. This can be used from
shell scripts etc. There is no user interface.
+=item B<--block-in-bytes>
+
+Show I/O statistics in Bytes. Default is shown in the number of Requests.
+
=item B<--end-time time>
The program will exit at the I<time> given.
Change the delay between screen updates.
+=item I<B>
+
+Toggle Block I/O statistics so they are shown in either bytes or requests.
+
=item I<0> (number 0)
Show the normal list of domains display.
Sets stream mode.
+=item B<block-in-bytes> I<true|false>
+
+Show block device statistics in bytes.
+
=item B<end-time> I<time>
Set the time at which the program exits. See above for the
=head1 NOTES
+=head2 Block I/O statistics
+
+This I/O value is the amount of I/O since the previous iteration
+of virt-top. To calculate speed of I/O, you should divide
+the number by delay secs.
+
=head2 NETWORK RX BYTES AND PACKETS
Libvirt/virt-top has no way to know that a packet transmitted to a