func NewMemStatsLoader(url string) *memStatsLoader {
	return &memStatsLoader{
		url: url,
		client: &http.Client{
			Timeout: 3 * time.Second,
		},
	}
}
NewMemStatsLoader create a loader
package http
import (
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"runtime"
	"time"
)