func LoadModule(numDevices int) error {
	return execute("modprobe", "zram", fmt.Sprintf("num_devices=%d", numDevices))
}
LoadModule loads the zram module, we need to specify the number of devices
when loading the zram module, otherwise only one zram device will be created,
you can verify the number of zram devices by running "ls /dev", zram devices
start at zram0.
package zram
import (
	"fmt"
	"os"
	"strings"
)