#!/bin/sh
# PCP QA Test No. 1104
# Check kernel.all.cpu.* against kernel.percpu.cpu.*
#
# Copyright (c) 2019 Ken McDonell.  All Rights Reserved.
#

seq=`basename $0`
echo "QA output created by $seq"

# get standard environment, filters and checks
. ./common.product
. ./common.filter
. ./common.check

_cleanup()
{
    cd $here
    $sudo rm -rf $tmp $tmp.*
}

status=1	# failure is the default!
$sudo rm -rf $tmp $tmp.* $seq.full
trap "_cleanup; exit \$status" 0 1 2 3 15

ncpu=`pmprobe -v hinv.ncpu | $PCP_AWK_PROG '{print $3}'`

_check()
{
    echo "$1" "$ncpu" "$2" "$3" | $PCP_AWK_PROG '
function _abs(x) { if (x > 0) return x; else return -x }
    { if ($3 - 10*$2 <= $4 && $4 <= $3 + 10*$2) {
	# OK
      }
      else {
	print "Error: " $1 " all=" $3 " sum(percpu)=" $4 " diff=" _abs($3-$4) " not +/- " 10*$2
      }
    }'
}

# real QA test starts here
echo "Silence is golden"

pmprobe -v kernel.all.cpu kernel.percpu.cpu >$tmp.raw
cat $tmp.raw >$here/$seq.full

grep '^kernel\.all\.cpu' $tmp.raw \
| while read all_metric all_numval all_value
do
    echo $all_metric $all_value >>$here/$seq.full
    percpu_metric=`echo "$all_metric" | sed -e 's/all/percpu/'`
    percpu_numval=`grep "^$percpu_metric " $tmp.raw | $PCP_AWK_PROG '{ print $2 }'`
    ok=true
    if [ "$percpu_numval" -eq 0 ]
    then
	if [ "$all_numval" -eq 0 ]
	then
	    # No values available for both, this is OK
	    continue
	else
	    ok=false
	fi
    elif [ "$all_numval" -lt 0 ]
    then
	ok=false
    elif [ "$percpu_numval" -lt 0 ]
    then
	ok=false
    fi

    if $ok
    then
	sum_value=`grep "^$percpu_metric " $tmp.raw \
		   | $PCP_AWK_PROG '
    { s = $3; for (i = 4; i <= NF; i++) s += $i; print s }'`
	echo $percpu_metric $sum_value >>$here/$seq.full
	_check $all_metric $all_value $sum_value
    else
	echo "Error: $all_metric numval=$all_numval, $percpu_metric numval=$percpu_numval !"
    fi
done

# success, all done
status=0
exit
