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Merge pull request #9724 from nguyennamthai/BAEL-4113 

BAEL-4113 Measure exception performance
This commit is contained in:
davidmartinezbarua 2020-07-24 00:11:23 -03:00 committed by GitHub
parent 7a75ba5c17 76b1717953
commit 53a7dae4b8
2 changed files with 82 additions and 0 deletions
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13
performance-tests/pom.xml
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@ -120,6 +120,18 @@
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<version>${maven-jar-plugin.version}</version>
<configuration>
<archive>
<manifest>
<mainClass>com.baeldung.performancetests.MappingFrameworksPerformance</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
@ -178,6 +190,7 @@
<jmh-core.version>1.21</jmh-core.version>
<jmh-generator.version>1.21</jmh-generator.version>
<maven-compiler-plugin.version>3.7.0</maven-compiler-plugin.version>
<maven-jar-plugin.version>3.2.0</maven-jar-plugin.version>
<!--
Java source/target to use for compilation.

69
performance-tests/src/main/java/com/baeldung/performancetests/exception/ExceptionBenchmark.java Normal file
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@ -0,0 +1,69 @@
package com.baeldung.performancetests.exception;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;
import java.util.concurrent.TimeUnit;
@Fork(1)
@Warmup(iterations = 2)
@Measurement(iterations = 10)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
public class ExceptionBenchmark {
private static final int LIMIT = 10_000;
@Benchmark
public void doNotThrowException(Blackhole blackhole) {
for (int i = 0; i < LIMIT; i++) {
blackhole.consume(new Object());
}
}
@Benchmark
public void throwAndCatchException(Blackhole blackhole) {
for (int i = 0; i < LIMIT; i++) {
try {
throw new Exception();
} catch (Exception e) {
blackhole.consume(e);
}
}
}
@Benchmark
public void createExceptionWithoutThrowingIt(Blackhole blackhole) {
for (int i = 0; i < LIMIT; i++) {
blackhole.consume(new Exception());
}
}
@Benchmark
@Fork(value = 1, jvmArgs = "-XX:-StackTraceInThrowable")
public void throwExceptionWithoutAddingStackTrace(Blackhole blackhole) {
for (int i = 0; i < LIMIT; i++) {
try {
throw new Exception();
} catch (Exception e) {
blackhole.consume(e);
}
}
}
@Benchmark
public void throwExceptionAndUnwindStackTrace(Blackhole blackhole) {
for (int i = 0; i < LIMIT; i++) {
try {
throw new Exception();
} catch (Exception e) {
blackhole.consume(e.getStackTrace());
}
}
}
}