77 lines
1.6 KiB
Bash
77 lines
1.6 KiB
Bash
#!/bin/sh
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usage () {
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echo 'usage: kvmstats.sh [-u K|M|G]'
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exit 1
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}
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POW=$(echo 1024 ^ 3 | bc)
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while 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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*)
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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=$(expr $POW / 1024)
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for DEP in hxselect lvs tempfile
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do
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if [ -z "$(which $DEP)" ]
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then
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echo "kvmstats.sh: $DEP not found in \$PATH" 1>&2
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exit 1
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fi
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done
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TMPFILE=$(tempfile)
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LVSOUT=$(tempfile)
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lvs --units b --nosuffix >$LVSOUT
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for VM in $(virsh list --all --name)
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do
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VCPU=$(hxselect -c 'domain vcpu' </etc/libvirt/qemu/$VM.xml)
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RAM=$(expr $(hxselect -c 'domain memory' </etc/libvirt/qemu/$VM.xml) / $POW)
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for DEV in $(hxselect -s'\n' 'domain devices disk[device=disk] source' </etc/libvirt/qemu/$VM.xml | cut -d\" -f2)
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do
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case $DEV in
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/dev/drbd/*)
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DISK=$(cat $LVSOUT | awk "/$VM/ { ans += \$NF } END { print ans / 1024 ^ 3 }")
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;;
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*.qcow2)
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DISK=$(du -sBG $DEV | awk '{ print substr($1, 0, length($1) - 1) }')
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;;
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*)
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DISK=0
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esac
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done
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echo $VM $VCPU $RAM $DISK
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done >$TMPFILE
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(
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echo vm vcpu ram disk
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cat $TMPFILE
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awk '{ vcpu += $2; ram += $3; disk += $4 } END { print "TOTAL", vcpu, ram, disk }' <$TMPFILE
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) | column -t
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rm $TMPFILE $LVSOUT
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