#!/bin/bash 

mkdir -p /var/log/resource-mon

OC1=0
OC2=0
OC3=0
OC4=0

while true ; do 
    DATE=$( date +%s )
    LOAD=$( cat /proc/loadavg )
	DISKSTATS=$( cat /proc/diskstats )
    eval $( awk '$1 == "br0:" { print "C1="$2,"C2="$3,"C3="$10,"C4="$11 }' /proc/net/dev )
    AQ=$( a q )
    
    DC1=$(( $C1 - $OC1 ))
    DC2=$(( $C2 - $OC2 ))
    DC3=$(( $C3 - $OC3 ))
    DC4=$(( $C4 - $OC4 ))
    # catch div by zero:
    if [ "$DC2" == 0 ]; then 
            RDC12="?"
    else 
            RDC12=$(( $DC1 / $DC2 ))
    fi
    if [ "$DC4" == 0 ]; then 
            RDC34="?"
    else 
            RDC34=$(( $DC3 / $DC4 ))
    fi

    (
        echo "<s t=\"$DATE\">"
        echo "<rb>$DC1</rb><rp>$DC2</rp><rbpc>$RDC12</rbpc>"
        echo "<tb>$DC3</tb><tp>$DC4</tp><tbpc>$RDC34</tbpc>"
        echo "<sb>$(( $DC1 + $DC3 ))</sb><sp>$(( $DC2 + $DC4 ))</sp><l>$LOAD</l>"
        echo "<ds>"
        echo "$DISKSTATS"
        echo "</ds>"
        echo "<aq>"
        echo "$AQ"
        echo "</aq>"
        echo "</s>"
    ) >> /var/log/resource-mon/$( date +%FT%H )

    #echo $DATE R: $DC1 $DC2 $RDC12 T: $DC3 $DC4 $RDC34 S: $(( $DC1 + $DC3 )) $(( $DC2 + $DC4 )) L: $LOAD
    OC1=$C1
    OC2=$C2
    OC3=$C3
    OC4=$C4
    sleep 1
done