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Commit fd41b5a9 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

tools: Add kvm_stat man page



Converted from the Texinfo source in QEMU to asciidoc.  The a2x
incantation was provided by Janosch Frank.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent f9bc9e65
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include ../../scripts/Makefile.include
include ../../scripts/utilities.mak
BINDIR=usr/bin
MANDIR=usr/share/man
MAN1DIR=$(MANDIR)/man1

install:
	mkdir -p $(INSTALL_ROOT)/$(BINDIR)
MAN1=kvm_stat.1

A2X=a2x
a2x_path := $(call get-executable,$(A2X))

all: man

ifneq ($(findstring $(MAKEFLAGS),s),s)
  ifneq ($(V),1)
     QUIET_A2X = @echo '  A2X     '$@;
  endif
endif

%.1: %.txt
ifeq ($(a2x_path),)
	$(error "You need to install asciidoc for man pages")
else
	$(QUIET_A2X)$(A2X) --doctype manpage --format manpage $<
endif

clean:
	rm -f $(MAN1)

man: $(MAN1)

install-man: man
	install -d -m 755 $(INSTALL_ROOT)/$(MAN1DIR)
	install -m 644 kvm_stat.1 $(INSTALL_ROOT)/$(MAN1DIR)

install-tools:
	install -d -m 755 $(INSTALL_ROOT)/$(BINDIR)
	install -m 755 -p "kvm_stat" "$(INSTALL_ROOT)/$(BINDIR)/$(TARGET)"

install: install-tools install-man
.PHONY: all clean man install-tools install-man install
+61 −0
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kvm_stat(1)
===========

NAME
----
kvm_stat - Report KVM kernel module event counters

SYNOPSIS
--------
[verse]
'kvm_stat' [OPTION]...

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.

OPTIONS
-------
-1::
--once::
--batch::
	run in batch mode for one second

-l::
--log::
	run in logging mode (like vmstat)

-t::
--tracepoints::
	retrieve statistics from tracepoints

-d::
--debugfs::
	retrieve statistics from debugfs

-f<fields>::
--fields=<fields>::
	fields to display (regex)

-h::
--help::
	show help message

SEE ALSO
--------
'perf'(1), 'trace-cmd'(1)

AUTHOR
------
Stefan Hajnoczi <stefanha@redhat.com>