78 lines
1.8 KiB
Bash
Executable file
78 lines
1.8 KiB
Bash
Executable file
#!/bin/sh
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set -e -u
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usage () {
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echo 'usage: kvmstats.sh [-a] [-u K|M|G]'
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exit 1
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}
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for DEP in bc tempfile virsh
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do
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if [ -z "$(which $DEP)" ]
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then
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echo "kvmstats.sh: $DEP not found in \$PATH" 1>&2
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exit 1
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fi
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done
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SHOW_AVAIL=''
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POW=$(echo 1024 ^ 3 | bc)
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while [ $# -ne 0 ] && echo "$1" | grep -q '^-[[:alnum:]]'
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do
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case $1 in
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'-u')
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case $2 in
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'K')
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POW=$(echo 1024 ^ 1 | bc)
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;;
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'M')
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POW=$(echo 1024 ^ 2 | bc)
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;;
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'G')
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POW=$(echo 1024 ^ 3 | bc)
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;;
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*)
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usage
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esac
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;;
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'-a')
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SHOW_AVAIL=y
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;;
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*)
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usage
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esac
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shift
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done
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# since libvirt seems to store memoy in KiB, POW must be lowered by 1
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POW=$((POW / 1024))
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TMPFILE=$(tempfile -s kvmstats)
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for VM in $(virsh list --name --all)
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do
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CPU=$(virsh vcpucount --maximum --current "$VM")
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RAM=$(virsh domstats --balloon "$VM" | awk 'BEGIN { FS="=" } /balloon.maximum/ { print $2 / 1024 ^ 2 }')
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DSK=$(for BLK in $(virsh domblklist "$VM" | sed '1,2d;/-$/d;/^$/d' | cut -d\ -f1)
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do
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virsh domblkinfo "$VM" "$BLK"
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done | awk '/Physical:/ { size += $2 } END { print int(size / 1024 ^ 3) }')
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RUN=$(virsh domstate "$VM" | grep -q '^running$' && echo yes || echo no)
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echo "$VM" "$CPU" "$RAM" "$DSK" "$RUN"
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done >"$TMPFILE"
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(
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echo vm vcpu ram disk running
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cat "$TMPFILE"
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awk '/yes$/ { vcpu += $2; ram += $3; disk += $4; running++ } END { print "TOTAL(running)", vcpu, ram, disk, running }' <"$TMPFILE"
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if [ "$SHOW_AVAIL" ]
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then
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AV_CPU=$(awk '/^processor/ { cpu++ } END { print cpu }' /proc/cpuinfo)
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AV_MEM=$(awk '/^MemTotal:/ { print int($2 / 1024 ^ 2) }' /proc/meminfo)
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echo AVAILABLE "$AV_CPU" "$AV_MEM"
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fi
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) | column -t
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rm "$TMPFILE"
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