forked from ReactiveX/RxJava
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathOneItemPerf.java
More file actions
230 lines (205 loc) · 7.08 KB
/
OneItemPerf.java
File metadata and controls
230 lines (205 loc) · 7.08 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
/**
* Copyright 2016 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package rx;
import java.util.concurrent.TimeUnit;
import org.openjdk.jmh.annotations.*;
import org.openjdk.jmh.infra.Blackhole;
import rx.Observable.OnSubscribe;
import rx.functions.Func1;
import rx.internal.producers.SingleProducer;
import rx.jmh.*;
/**
* Benchmark operators working on a one-item source.
* <p>
* gradlew benchmarks "-Pjmh=-f 1 -tu s -bm thrpt -wi 5 -i 5 -r 1 .*OneItemPerf.*"
* <p>
* gradlew benchmarks "-Pjmh=-f 1 -tu ns -bm avgt -wi 5 -i 5 -r 1 .*OneItemPerf.*"
*/
@BenchmarkMode(Mode.Throughput)
@OutputTimeUnit(TimeUnit.SECONDS)
@State(Scope.Thread)
public class OneItemPerf {
Observable<Integer> scalar;
Observable<Integer> scalarHidden;
Observable<Integer> one;
Single<Integer> single;
Single<Integer> singleHidden;
Observable<Integer> scalarConcat;
Observable<Integer> scalarHiddenConcat;
Observable<Integer> oneConcat;
Observable<Integer> scalarMerge;
Observable<Integer> scalarHiddenMerge;
Observable<Integer> oneMerge;
Single<Integer> singleMerge;
Single<Integer> singleHiddenMerge;
Observable<Integer> scalarSwitch;
Observable<Integer> scalarHiddenSwitch;
Observable<Integer> oneSwitch;
<T> Single<T> hide(final Single<T> single) {
return Single.create(new Single.OnSubscribe<T>() {
@Override
public void call(SingleSubscriber<? super T> t) {
single.subscribe(t);
}
});
}
@Setup
public void setup() {
scalar = Observable.just(1);
one = Observable.create(new OnSubscribe<Integer>() {
@Override
public void call(Subscriber<? super Integer> t) {
t.setProducer(new SingleProducer<Integer>(t, 1));
}
});
single = Single.just(1);
singleHidden = hide(single);
scalarHidden = scalar.asObservable();
// ----------------------------------------------------------------------------
scalarConcat = scalar.concatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
scalarHiddenConcat = scalarHidden.concatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
oneConcat = one.concatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
// ----------------------------------------------------------------------------
scalarMerge = scalar.flatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
scalarHiddenMerge = scalarHidden.flatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
oneMerge = one.flatMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
singleMerge = single.flatMap(new Func1<Integer, Single<Integer>>() {
@Override
public Single<Integer> call(Integer v) {
return single;
}
});
singleHiddenMerge = hide(single).flatMap(new Func1<Integer, Single<Integer>>() {
@Override
public Single<Integer> call(Integer v) {
return single;
}
});
// ----------------------------------------------------------------------------
scalarSwitch = scalar.switchMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
scalarHiddenSwitch = scalarHidden.switchMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
oneSwitch = one.switchMap(new Func1<Integer, Observable<Integer>>() {
@Override
public Observable<Integer> call(Integer v) {
return scalar;
}
});
}
@Benchmark
public void scalar(Blackhole bh) {
scalar.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void scalarHidden(Blackhole bh) {
scalarHidden.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void one(Blackhole bh) {
one.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void single(Blackhole bh) {
single.subscribe(new PerfSingleSubscriber(bh));
}
@Benchmark
public void singleHidden(Blackhole bh) {
singleHidden.subscribe(new PerfSingleSubscriber(bh));
}
@Benchmark
public void scalarConcat(Blackhole bh) {
scalarConcat.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void scalarHiddenConcat(Blackhole bh) {
scalarHidden.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void oneConcat(Blackhole bh) {
oneConcat.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void scalarMerge(Blackhole bh) {
scalarMerge.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void scalarHiddenMerge(Blackhole bh) {
scalarHidden.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void oneMerge(Blackhole bh) {
oneMerge.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void singleMerge(Blackhole bh) {
single.subscribe(new PerfSingleSubscriber(bh));
}
@Benchmark
public void singleHiddenMerge(Blackhole bh) {
singleHiddenMerge.subscribe(new PerfSingleSubscriber(bh));
}
@Benchmark
public void scalarSwitch(Blackhole bh) {
scalarSwitch.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void scalarHiddenSwitch(Blackhole bh) {
scalarHiddenSwitch.subscribe(new LatchedObserver<Integer>(bh));
}
@Benchmark
public void oneSwitch(Blackhole bh) {
oneSwitch.subscribe(new LatchedObserver<Integer>(bh));
}
}