public static void appendSize(StringBuilder buf, long size) {
        if (size >= 104857600) { // >= 100 MiB
            buf.append(size / 1048576).append("MiB(").append(size).append("B)");
        } else if (size >= 102400) { // >= 100 KiB
            buf.append(size / 1024).append("KiB(").append(size).append("B)");
        } else {
            buf.append(size).append('B');
        }
    }
Appends the human-readable representation of the specified byte-unit {@code size} to the specified
{@link StringBuffer}.
core/src/main/java/com/linecorp/armeria/common/util/TextFormatter.java