graphql-java · bbakerman · Apr 22, 2025 · Apr 20, 2025 · Apr 20, 2025 · Apr 20, 2025
diff --git a/src/jmh/java/performance/LargeInMemoryQueryPerformance.java b/src/jmh/java/performance/LargeInMemoryQueryPerformance.java
@@ -0,0 +1,140 @@
+package performance;
+
+import benchmark.BenchmarkUtils;
+import graphql.GraphQL;
+import graphql.schema.GraphQLSchema;
+import graphql.schema.idl.RuntimeWiring;
+import graphql.schema.idl.SchemaGenerator;
+import graphql.schema.idl.SchemaParser;
+import graphql.schema.idl.TypeDefinitionRegistry;
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Level;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.OutputTimeUnit;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.TearDown;
+import org.openjdk.jmh.annotations.Warmup;
+import org.openjdk.jmh.profile.GCProfiler;
+import org.openjdk.jmh.runner.Runner;
+import org.openjdk.jmh.runner.options.Options;
+import org.openjdk.jmh.runner.options.OptionsBuilder;
+
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+
+import static graphql.schema.idl.TypeRuntimeWiring.newTypeWiring;
+
+/**
+ * This benchmark is an attempt to have a large in memory query that involves only sync work but lots of
+ * data fetching invocation
+ * <p>
+ * It can also be run in a forever mode say if you want to connect a profiler to it say
+ */
+@State(Scope.Benchmark)
+@Warmup(iterations = 2, time = 5)
+@Measurement(iterations = 2)
+@Fork(2)
+public class LargeInMemoryQueryPerformance {
+
+    GraphQL graphQL;
+    volatile boolean shutDown;
+
+    @Setup(Level.Trial)
+    public void setUp() {
+        shutDown = false;
+        graphQL = buildGraphQL();
+    }
+
+    @TearDown(Level.Trial)
+    public void tearDown() {
+        shutDown = true;
+    }
+
+
+    @Benchmark
+    @BenchmarkMode(Mode.Throughput)
+    @OutputTimeUnit(TimeUnit.SECONDS)
+    public Object benchMarkSimpleQueriesThroughput() {
+        return runManyQueriesToCompletion();
+    }
+
+    @Benchmark
+    @BenchmarkMode(Mode.AverageTime)
+    @OutputTimeUnit(TimeUnit.SECONDS)
+    public Object benchMarkSimpleQueriesAvgTime() {
+        return runManyQueriesToCompletion();
+    }
+
+
+    public static void main(String[] args) throws Exception {
+        // just to make sure it's all valid before testing
+        runAtStartup();
+
+        Options opt = new OptionsBuilder()
+                .include("performance.LargeInMemoryQueryBenchmark")
+                .addProfiler(GCProfiler.class)
+                .build();
+
+        new Runner(opt).run();
+    }
+
+    private static void runAtStartup() {
+
+        LargeInMemoryQueryPerformance complexQueryBenchmark = new LargeInMemoryQueryPerformance();
+        BenchmarkUtils.runInToolingForSomeTimeThenExit(
+                complexQueryBenchmark::setUp,
+                complexQueryBenchmark::runManyQueriesToCompletion,
+                complexQueryBenchmark::tearDown
+
+        );
+    }
+
+
+    private Object runManyQueriesToCompletion() {
+        return graphQL.execute(
+                "query {\n" +
+                        "\n" +
+                        "   giveMeLargeResponse {\n" +
+                        "      someValue\n" +
+                        "   }\n" +
+                        "}"
+        );
+    }
+
+    private static final List<SomeWrapper> manyObjects = IntStream
+            .range(0, 10_000_000)
+            .mapToObj(i -> new SomeWrapper("value #" + i))
+            .collect(Collectors.toList());
+
+    public static class SomeWrapper {
+        String someValue;
+
+        public SomeWrapper(String someValue) {
+            this.someValue = someValue;
+        }
+    }
+
+    private GraphQL buildGraphQL() {
+        TypeDefinitionRegistry typeDefinitionRegistry = new SchemaParser().parse("\n" +
+                        "type Query {\n" +
+                        "   giveMeLargeResponse: [SomeWrapper]\n" +
+                        "}\n" +
+                        "type SomeWrapper {\n" +
+                        "   someValue: String\n" +
+                        "}\n"
+        );
+        RuntimeWiring wiring = RuntimeWiring.newRuntimeWiring()
+                .type(newTypeWiring("Query")
+                        .dataFetcher("giveMeLargeResponse", env -> manyObjects))
+                .build();
+        GraphQLSchema schema = new SchemaGenerator().makeExecutableSchema(typeDefinitionRegistry, wiring);
+        return GraphQL.newGraphQL(schema).build();
+    }
+}