chore(test): add module for jmh benchmarks

jmh-benchmarks/README.md

@@ -0,0 +1,17 @@
+# JMH-Benchmarks module
+
+This module contains benchmarks written using JMH from OpenJDK.
+
+## Running Benchmarks
+
+**To run all benchmarks**
+
+```bash
+./gradlew jmh:jmh
+```
+
+**To run a specific benchmark**
+
+```bash
+./gradlew jmh:jmh -Pjmh.include=io.kestra.core.utils.MapUtilsBenchmark
+```

jmh-benchmarks/build.gradle

@@ -0,0 +1,22 @@
+plugins {
+    id "me.champeau.jmh" version "0.7.2"
+}
+
+configurations {
+    tests
+    implementation.extendsFrom(micronaut)
+}
+
+tasks.register('copyGradleProperties', Copy) {
+    group = "build"
+    shouldRunAfter compileJava
+
+    from '../gradle.properties'
+    into 'src/main/resources'
+}
+
+processResources.dependsOn copyGradleProperties
+
+dependencies {
+    jmh project(':core')
+}

jmh-benchmarks/src/jmh/java/io/kestra/core/utils/MapUtilsBenchmark.java

@@ -0,0 +1,32 @@
+package io.kestra.core.utils;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+
+import org.openjdk.jmh.annotations.*;
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MICROSECONDS)
+@State(Scope.Thread)
+public class MapUtilsBenchmark {
+    private Map<String, Object> mapA;
+    private Map<String, Object> mapB;
+
+    @Setup(Level.Invocation)
+    public void setup() {
+        mapA = new HashMap<>();
+        mapB = new HashMap<>();
+        for (int i = 0; i < 100; i++) {
+            mapA.put("key" + i, "valueA" + i);
+            mapB.put("key" + i, "valueB" + i);
+        }
+        mapA.put("nested", Map.of("a", 1));
+        mapB.put("nested", Map.of("b", 2));
+    }
+
+    @Benchmark
+    public Map<String, Object> testMerge() {
+        return MapUtils.merge(mapA, mapB);
+    }
+}

settings.gradle

@@ -1,4 +1,4 @@
-rootProject.name="kestra"
+rootProject.name = "kestra"
 
 include 'platform'
 
@@ -24,3 +24,4 @@ include 'processor'
 include 'script'
 include 'e2e-tests'
 
+include 'jmh-benchmarks'