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Users of virsh complain that output of the domblkstat command is not intuitive enough. This patch adds explanation of fields returned by this command to the help section for domblkstat and the man page of virsh. Also a switch --human is added for domblkstat that prints the fields with more descriptive texts. This patch also changes sequence of the output fields and their names back to the order and spelling established by previous versions of virsh to maintain compatibility with scripts. Example of ordered and "translated" output: PRE-patch: virsh # domblkstat 1 vda vda wr_bytes 5170176 vda wr_operations 511 vda rd_bytes 82815488 vda rd_operations 3726 POST-patch: virsh # domblkstat 1 vda vda rd_req 3726 vda rd_bytes 82815488 vda wr_req 478 vda wr_bytes 4965376 Example of human readable output: virsh # domblkstat 1 vda --human Device: vda number of read operations: 3726 number of read bytes: 82815488 number of write operations: 478 number of bytes written: 4965376 https://bugzilla.redhat.com/show_bug.cgi?id=731656
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>