DateFormatter2Benchmark Class — netty Architecture

Source Code

microbench/src/main/java/io/netty/handler/codec/DateFormatter2Benchmark.java lines 27–95

@Threads(1)
@Warmup(iterations = 5)
@Measurement(iterations = 5)
public class DateFormatter2Benchmark extends AbstractMicrobenchmark {

    @Param({"Sun, 27 Jan 2016 19:18:46 GMT", "Sun, 27 Dec 2016 19:18:46 GMT"})
    String DATE_STRING;

    @Benchmark
    public Date parseHttpHeaderDateFormatterNew() {
        return DateFormatter.parseHttpDate(DATE_STRING);
    }

    /*
    @Benchmark
    public Date parseHttpHeaderDateFormatter() {
        return DateFormatterOld.parseHttpDate(DATE_STRING);
    }
    */

    /*
     * Benchmark                        (DATE_STRING)   Mode  Cnt        Score       Error  Units
     * parseHttpHeaderDateFormatter     Sun, 27 Jan 2016 19:18:46 GMT  thrpt    6  4142781.221 ± 82155.002  ops/s
     * parseHttpHeaderDateFormatter     Sun, 27 Dec 2016 19:18:46 GMT  thrpt    6  3781810.558 ± 38679.061  ops/s
     * parseHttpHeaderDateFormatterNew  Sun, 27 Jan 2016 19:18:46 GMT  thrpt    6  4372569.705 ± 30257.537  ops/s
     * parseHttpHeaderDateFormatterNew  Sun, 27 Dec 2016 19:18:46 GMT  thrpt    6  4339785.100 ± 57542.660  ops/s
     */

    /*Old DateFormatter.tryParseMonth method:
    private boolean tryParseMonth(CharSequence txt, int tokenStart, int tokenEnd) {
        int len = tokenEnd - tokenStart;

        if (len != 3) {
            return false;
        }

        if (matchMonth("Jan", txt, tokenStart)) {
            month = Calendar.JANUARY;
        } else if (matchMonth("Feb", txt, tokenStart)) {
            month = Calendar.FEBRUARY;
        } else if (matchMonth("Mar", txt, tokenStart)) {
            month = Calendar.MARCH;
        } else if (matchMonth("Apr", txt, tokenStart)) {
            month = Calendar.APRIL;
        } else if (matchMonth("May", txt, tokenStart)) {
            month = Calendar.MAY;
        } else if (matchMonth("Jun", txt, tokenStart)) {
            month = Calendar.JUNE;
        } else if (matchMonth("Jul", txt, tokenStart)) {
            month = Calendar.JULY;
        } else if (matchMonth("Aug", txt, tokenStart)) {
            month = Calendar.AUGUST;
        } else if (matchMonth("Sep", txt, tokenStart)) {
            month = Calendar.SEPTEMBER;
        } else if (matchMonth("Oct", txt, tokenStart)) {
            month = Calendar.OCTOBER;
        } else if (matchMonth("Nov", txt, tokenStart)) {
            month = Calendar.NOVEMBER;
        } else if (matchMonth("Dec", txt, tokenStart)) {
            month = Calendar.DECEMBER;
        } else {
            return false;
        }

        return true;
    }
    */

}