811c572776
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Ademar Reis <areis@redhat.com> Reviewed-by: Wei Huang <wei@redhat.com> Message-Id: <1425338947-10296-3-git-send-email-stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
56 lines
1.2 KiB
Plaintext
56 lines
1.2 KiB
Plaintext
@example
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@c man begin SYNOPSIS
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usage: kvm_stat [OPTION]...
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@c man end
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@end example
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@c man begin DESCRIPTION
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kvm_stat prints counts of KVM kernel module trace events. These events signify
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state transitions such as guest mode entry and exit.
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This tool is useful for observing guest behavior from the host perspective.
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Often conclusions about performance or buggy behavior can be drawn from the
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output.
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The set of KVM kernel module trace events may be specific to the kernel version
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or architecture. It is best to check the KVM kernel module source code for the
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meaning of events.
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Note that trace events are counted globally across all running guests.
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@c man end
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@c man begin OPTIONS
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@table @option
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@item -1, --once, --batch
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run in batch mode for one second
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@item -l, --log
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run in logging mode (like vmstat)
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@item -t, --tracepoints
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retrieve statistics from tracepoints
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@item -d, --debugfs
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retrieve statistics from debugfs
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@item -f, --fields=@var{fields}
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fields to display (regex)
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@item -h, --help
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show help message
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@end table
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@c man end
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@ignore
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@setfilename kvm_stat
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@settitle Report KVM kernel module event counters.
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@c man begin AUTHOR
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Stefan Hajnoczi <stefanha@redhat.com>
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@c man end
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@c man begin SEEALSO
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perf(1), trace-cmd(1)
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@c man end
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@end ignore
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