diff options
| -rw-r--r-- | Makefile | 9 | ||||
| -rw-r--r-- | scripts/kvm/kvm_stat.texi | 55 |
2 files changed, 64 insertions, 0 deletions
@@ -84,6 +84,9 @@ HELPERS-$(CONFIG_LINUX) = qemu-bridge-helper$(EXESUF) ifdef BUILD_DOCS DOCS=qemu-doc.html qemu-tech.html qemu.1 qemu-img.1 qemu-nbd.8 qmp-commands.txt +ifdef CONFIG_LINUX +DOCS+=kvm_stat.1 +endif ifdef CONFIG_VIRTFS DOCS+=fsdev/virtfs-proxy-helper.1 endif @@ -490,6 +493,12 @@ qemu-nbd.8: qemu-nbd.texi $(POD2MAN) --section=8 --center=" " --release=" " qemu-nbd.pod > $@, \ " GEN $@") +kvm_stat.1: scripts/kvm/kvm_stat.texi + $(call quiet-command, \ + perl -Ww -- $(SRC_PATH)/scripts/texi2pod.pl $< kvm_stat.pod && \ + $(POD2MAN) --section=1 --center=" " --release=" " kvm_stat.pod > $@, \ + " GEN $@") + dvi: qemu-doc.dvi qemu-tech.dvi html: qemu-doc.html qemu-tech.html info: qemu-doc.info qemu-tech.info diff --git a/scripts/kvm/kvm_stat.texi b/scripts/kvm/kvm_stat.texi new file mode 100644 index 0000000000..6ce00d80e7 --- /dev/null +++ b/scripts/kvm/kvm_stat.texi @@ -0,0 +1,55 @@ +@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 |