bengbengbalabalabeng commented on issue #69:
URL: https://github.com/apache/fesod/issues/69#issuecomment-3796104660
@xbo2018 Hi.
I tried performance test on 100k records shows a **~800x performance gap**:
- `BeanMap`: **~5.8 ms**
- `NoCglibBeanMap`: **~4,600 ms**
<details>
<summary>Click To Review Full Code</summary>
```java
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@State(Scope.Thread)
@Fork(1)
@Warmup(iterations = 3, time = 1)
@Measurement(iterations = 5, time = 1)
public class BeanMapBenchmark {
@Param({"10000", "50000", "100000"})
private int size;
private TypeTestObject[] sourceBeans;
private int[] newIntValues;
private static final String KEY_GET = "testString";
private static final String KEY_PUT = "testPrimitiveInt";
@Setup(Level.Trial)
public void setup() {
sourceBeans = new TypeTestObject[size];
newIntValues = new int[size];
for (int i = 0; i < size; i++) {
sourceBeans[i] = TypeTestObject.builder()
.testString("Data Row " + i)
.testPrimitiveInt(i)
.build();
newIntValues[i] = i + 9999;
}
}
@Benchmark
public void cglib_Create_And_Get(Blackhole bh) {
for (int i = 0; i < size; i++) {
TypeTestObject bean = sourceBeans[i];
BeanMap map = BeanMap.create(bean);
bh.consume(map.get(bean, KEY_GET));
}
}
@Benchmark
public void reflect_Create_And_Get(Blackhole bh) {
for (int i = 0; i < size; i++) {
TypeTestObject bean = sourceBeans[i];
BeanMap map = NoCglibBeanMap.create(bean);
bh.consume(map.get(bean, KEY_GET));
}
}
@Benchmark
public void cglib_Create_And_Put(Blackhole bh) {
for (int i = 0; i < size; i++) {
TypeTestObject bean = sourceBeans[i];
BeanMap map = BeanMap.create(bean);
bh.consume(map.put(bean, KEY_PUT, newIntValues[i]));
}
}
@Benchmark
public void reflect_Create_And_Put(Blackhole bh) {
for (int i = 0; i < size; i++) {
TypeTestObject bean = sourceBeans[i];
BeanMap map = NoCglibBeanMap.create(bean);
bh.consume(map.put(bean, KEY_PUT, newIntValues[i]));
}
}
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(BeanMapBenchmark.class.getSimpleName())
.build();
new Runner(opt).run();
}
}
```
</details>
Output:
```log
Benchmark (size) Mode Cnt Score
Error Units
BeanMapBenchmark.cglib_Create_And_Get 10000 avgt 5 0.542 ±
0.390 ms/op
BeanMapBenchmark.cglib_Create_And_Get 50000 avgt 5 2.693 ±
0.498 ms/op
BeanMapBenchmark.cglib_Create_And_Get 100000 avgt 5 5.854 ±
2.103 ms/op
BeanMapBenchmark.cglib_Create_And_Put 10000 avgt 5 0.558 ±
0.189 ms/op
BeanMapBenchmark.cglib_Create_And_Put 50000 avgt 5 3.041 ±
0.949 ms/op
BeanMapBenchmark.cglib_Create_And_Put 100000 avgt 5 5.696 ±
0.231 ms/op
BeanMapBenchmark.reflect_Create_And_Get 10000 avgt 5 458.933 ±
107.278 ms/op
BeanMapBenchmark.reflect_Create_And_Get 50000 avgt 5 2281.279 ±
472.617 ms/op
BeanMapBenchmark.reflect_Create_And_Get 100000 avgt 5 4642.381 ±
911.832 ms/op
BeanMapBenchmark.reflect_Create_And_Put 10000 avgt 5 484.927 ±
193.778 ms/op
BeanMapBenchmark.reflect_Create_And_Put 50000 avgt 5 2324.239 ±
518.657 ms/op
BeanMapBenchmark.reflect_Create_And_Put 100000 avgt 5 4524.777 ±
634.290 ms/op
```
The performance of `NoCglibBeanMap` implementation drops significantly in
large-scale data scenarios.
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