1 /*
2 * Copyright 2019 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.codec;
17
18 import io.netty.microbench.util.AbstractMicrobenchmark;
19 import org.openjdk.jmh.annotations.Benchmark;
20 import org.openjdk.jmh.annotations.Measurement;
21 import org.openjdk.jmh.annotations.Param;
22 import org.openjdk.jmh.annotations.Threads;
23 import org.openjdk.jmh.annotations.Warmup;
24
25 import java.util.Date;
26
27 @Threads(1)
28 @Warmup(iterations = 5)
29 @Measurement(iterations = 5)
30 public class DateFormatter2Benchmark extends AbstractMicrobenchmark {
31
32 @Param({"Sun, 27 Jan 2016 19:18:46 GMT", "Sun, 27 Dec 2016 19:18:46 GMT"})
33 String DATE_STRING;
34
35 @Benchmark
36 public Date parseHttpHeaderDateFormatterNew() {
37 return DateFormatter.parseHttpDate(DATE_STRING);
38 }
39
40 /*
41 @Benchmark
42 public Date parseHttpHeaderDateFormatter() {
43 return DateFormatterOld.parseHttpDate(DATE_STRING);
44 }
45 */
46
47 /*
48 * Benchmark (DATE_STRING) Mode Cnt Score Error Units
49 * parseHttpHeaderDateFormatter Sun, 27 Jan 2016 19:18:46 GMT thrpt 6 4142781.221 ± 82155.002 ops/s
50 * parseHttpHeaderDateFormatter Sun, 27 Dec 2016 19:18:46 GMT thrpt 6 3781810.558 ± 38679.061 ops/s
51 * parseHttpHeaderDateFormatterNew Sun, 27 Jan 2016 19:18:46 GMT thrpt 6 4372569.705 ± 30257.537 ops/s
52 * parseHttpHeaderDateFormatterNew Sun, 27 Dec 2016 19:18:46 GMT thrpt 6 4339785.100 ± 57542.660 ops/s
53 */
54
55 /*Old DateFormatter.tryParseMonth method:
56 private boolean tryParseMonth(CharSequence txt, int tokenStart, int tokenEnd) {
57 int len = tokenEnd - tokenStart;
58
59 if (len != 3) {
60 return false;
61 }
62
63 if (matchMonth("Jan", txt, tokenStart)) {
64 month = Calendar.JANUARY;
65 } else if (matchMonth("Feb", txt, tokenStart)) {
66 month = Calendar.FEBRUARY;
67 } else if (matchMonth("Mar", txt, tokenStart)) {
68 month = Calendar.MARCH;
69 } else if (matchMonth("Apr", txt, tokenStart)) {
70 month = Calendar.APRIL;
71 } else if (matchMonth("May", txt, tokenStart)) {
72 month = Calendar.MAY;
73 } else if (matchMonth("Jun", txt, tokenStart)) {
74 month = Calendar.JUNE;
75 } else if (matchMonth("Jul", txt, tokenStart)) {
76 month = Calendar.JULY;
77 } else if (matchMonth("Aug", txt, tokenStart)) {
78 month = Calendar.AUGUST;
79 } else if (matchMonth("Sep", txt, tokenStart)) {
80 month = Calendar.SEPTEMBER;
81 } else if (matchMonth("Oct", txt, tokenStart)) {
82 month = Calendar.OCTOBER;
83 } else if (matchMonth("Nov", txt, tokenStart)) {
84 month = Calendar.NOVEMBER;
85 } else if (matchMonth("Dec", txt, tokenStart)) {
86 month = Calendar.DECEMBER;
87 } else {
88 return false;
89 }
90
91 return true;
92 }
93 */
94
95 }