https://twitter.com/cowtowncoder/status/1628208067388268544

LongNumberParsing.java

@BenchmarkMode(Mode.Throughput)
@State(Scope.Benchmark)
@Fork(value = 1)
@Measurement(iterations = 3, time = 1)
@Warmup(iterations = 3, time = 1)
public class LongNumberParsing {
    static final String DIGITS = "1234567890";
    static final int REPETITIONS = 100;
    static final String LONG_INT = join("", nCopies(REPETITIONS, DIGITS));
    static final String LONG_FP = DIGITS + "." + join("", nCopies(REPETITIONS - 1, DIGITS));

    @Benchmark public double perfParseDouble() { return Double.parseDouble(LONG_FP); }
    @Benchmark public Object perfParseBigDecimal() { return new BigDecimal(LONG_FP); }
    @Benchmark public Object perfParseBigInteger() { return new BigInteger(LONG_INT); }
}