Add qemu 2.4.0

[kvmfornfv.git] / qemu / scripts / kvm / kvm_stat.texi

diff --git a/qemu/scripts/kvm/kvm_stat.texi b/qemu/scripts/kvm/kvm_stat.texi
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+@example
+@c man begin SYNOPSIS
+usage: kvm_stat [OPTION]...
+@c man end
+@end example
+
+@c man begin DESCRIPTION
+
+kvm_stat prints counts of KVM kernel module trace events.  These events signify
+state transitions such as guest mode entry and exit.
+
+This tool is useful for observing guest behavior from the host perspective.
+Often conclusions about performance or buggy behavior can be drawn from the
+output.
+
+The set of KVM kernel module trace events may be specific to the kernel version
+or architecture.  It is best to check the KVM kernel module source code for the
+meaning of events.
+
+Note that trace events are counted globally across all running guests.
+
+@c man end
+
+@c man begin OPTIONS
+@table @option
+@item -1, --once, --batch
+  run in batch mode for one second
+@item -l, --log
+  run in logging mode (like vmstat)
+@item -t, --tracepoints
+  retrieve statistics from tracepoints
+@item -d, --debugfs
+  retrieve statistics from debugfs
+@item -f, --fields=@var{fields}
+  fields to display (regex)
+@item -h, --help
+  show help message
+@end table
+
+@c man end
+
+@ignore
+
+@setfilename kvm_stat
+@settitle Report KVM kernel module event counters.
+
+@c man begin AUTHOR
+Stefan Hajnoczi <stefanha@redhat.com>
+@c man end
+
+@c man begin SEEALSO
+perf(1), trace-cmd(1)
+@c man end
+
+@end ignore