toolkit/func/core/pkg_sysstat/11-cpu.sh

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#!/bin/bash
r_log "sysstat" "Testing CPU load is being measured via mpstat"
TMPFILE=/var/tmp/mpstat
BLOCKS=4096
COUNT=20000
[ -e "$TMPFILE" ] && /bin/rm -f $TMPFILE
/usr/bin/mpstat -P 0 1 5 > $TMPFILE &
# wait
sleep 5
# generate cpu stuff
/bin/dd if=/dev/urandom bs=$BLOCKS count=$COUNT 2> /dev/null | sha256sum -b - &> /dev/null
# wait
sleep 5
# Check that our bytes are greater than zero. Except the first line.
CPU_SYS_PERCENT=$(awk '$6 ~ /[0-9]\./ {$6>a ? a=$6 : $6} END {print int(a)}' $TMPFILE)
[ "$CPU_SYS_PERCENT" -gt 5 ] || { r_log "sysstat" "Why didn't we log CPU activity..."; }
r_checkExitStatus $?