#!/bin/bash -x

##################################################################
#
# Gen2+ CPU/Memory Usage Regular-checker v1.1.0   2021/06/11
#
# ※ Background_Run => nohup ./chk_cpumem_tak.sh 0<&- &>/dev/null &
#
# 1st made by kim won young
# 2nd modify by tak kyung mo 
#
##################################################################
Sub_TITLE="Date, CPU_LOAD, MEM_LOAD"

GEN2PLUS_MEM_SIZE=2062412

function cpu_check() {

        top -b -n 5 | grep Cpu | awk 'sum=$2+$4+0.0 {printf("%0.1f %\n", sum)}' | sort -t . -nr -k1 | head -1

}

function mem_check() {

        free -k | grep Mem | awk 'sum=int(($3+$5)/$2*100*10)/10 {printf("%0.1f %\n", sum)}'

}



while [ 1 ]
do
    TIME_CHK="$(date +%Y/%m/%d)_$(date +%H):$(date +%M):$(date +%S)"
    LOG_FILE_NM="chk_cpumem_$(date +%Y%m).log"
    
    if ! [ -f "$LOG_FILE_NM" ]; then
       # Write Title to Log_File
       echo $Sub_TITLE >> $LOG_FILE_NM
    fi

    CPU_USAGE=$(cpu_check)

    MEM_USAGE=$(mem_check)

    # Terminal_Display
    echo "$TIME_CHK CPU-> $CPU_USAGE        Memory-> $MEM_USAGE"
    
    # Log_File_Display
    echo "$TIME_CHK, ${CPU_USAGE%% \%}, ${MEM_USAGE%%\%}">> $LOG_FILE_NM

    # Run_interval : 10min (600 sec)
    sleep 600

done

exit 0