Introduce isLongRunning to better manage longer benchmarks.

The general reasoning here is, larger computations (like compilation) require more time to warm up.

We will start with spending 10s per iteration vs. 1s for regular benchmarks.

PiperOrigin-RevId: 725958018

benchmarking/java/com/google/j2cl/benchmarking/framework/AbstractBenchmark.java

@@ -52,4 +52,13 @@ public void tearDown() {}
    * Called one time after the benchmark is executed.
    */
   public void tearDownOneTime() {}
+
+  /**
+   * Returns whether the benchmark is long running.
+   *
+   * <p>If the benchmark is long running, the framework uses a longer warmup and measurement time.
+   */
+  public boolean isLongRunning() {
+    return false;
+  }
 }

benchmarking/java/com/google/j2cl/benchmarking/framework/BenchmarkExecutor.java

@@ -27,9 +27,13 @@ public final class BenchmarkExecutor {
   }
 
   public static BenchmarkResult execute(AbstractBenchmark benchmark) {
-    // Run the benchmark with 5 warm-up rounds of 1 second each and then with 5 measurement rounds
-    // of 1 second each.
-    return execute(benchmark, Clock.DEFAULT, 10, 5, 1000);
+    if (benchmark.isLongRunning()) {
+      // Run the benchmark with 5 warm-up / 5 measurement rounds 10 second each.
+      return execute(benchmark, Clock.DEFAULT, 10, 5, 10000);
+    } else {
+      // Run the benchmark with 5 warm-up / 5 measurement rounds 1 second each.
+      return execute(benchmark, Clock.DEFAULT, 10, 5, 1000);
+    }
   }
 
   public static void prepareForRunOnce(AbstractBenchmark benchmark) {
@@ -100,7 +104,11 @@ static BenchmarkResult execute(
     benchmark.tearDownOneTime();
 
     BenchmarkResult benchmarkResult = BenchmarkResult.from(throughputs);
-    log("Throughput: %s ops/ms", benchmarkResult.getAverageThroughput());
+    if (benchmark.isLongRunning()) {
+      log("Throughput: %s ops/s", benchmarkResult.getAverageThroughput() * 1000);
+    } else {
+      log("Throughput: %s ops/ms", benchmarkResult.getAverageThroughput());
+    }
     return benchmarkResult;
   }