package subject

import (
	"fmt"
	"runtime"
)

func toMegaBytes(bytes uint64) float64 {
	return float64(bytes) / 1024 / 1024
}

func traceMemStats() {
	var ms runtime.MemStats
	runtime.ReadMemStats(&ms)
	var result = make([]float64, 7)
	result[0] = float64(ms.HeapObjects)
	result[1] = toMegaBytes(ms.HeapAlloc)
	result[2] = toMegaBytes(ms.TotalAlloc)
	result[3] = toMegaBytes(ms.HeapSys)
	result[4] = toMegaBytes(ms.HeapIdle)
	result[5] = toMegaBytes(ms.HeapReleased)
	result[6] = toMegaBytes(ms.HeapIdle - ms.HeapReleased)

	for _, v := range result {
		fmt.Printf("%.2f\t", v)
	}
	fmt.Printf("\n")
}