this.sizingRatio = calculateRatioToDefaultAvailableHeap();
    }

    public HeapProportionalCacheSizer() {
        this(calculateMaxHeapMB());
    }

    private static int calculateMaxHeapMB() {
        return (int) (Runtime.getRuntime().maxMemory() / (1024 * 1024));
    }

    private double calculateRatioToDefaultAvailableHeap() {