chore(test): increase thread count for ParallelParameterized (#1026)

BenWhitehead · web-flow · commit 0cb9a038cecf · 2021-09-21T15:00:58.000-04:00
The tests are mostly IO bound, it should be safe to increase the number of threads to be higher than the number of cores
diff --git a/google-cloud-storage/src/test/java/com/google/cloud/storage/conformance/retry/ParallelParameterized.java b/google-cloud-storage/src/test/java/com/google/cloud/storage/conformance/retry/ParallelParameterized.java
@@ -49,8 +49,8 @@ private ParallelScheduler() {
               .setNameFormat("parallel-test-runner-%02d")
               .build();
       // attempt to leave some space for the testbench server running alongside these tests
-      int coreCount = Runtime.getRuntime().availableProcessors() - 2;
-      int threadCount = Math.max(2, coreCount);
+      int coreCount = Runtime.getRuntime().availableProcessors();
+      int threadCount = Math.max(1, coreCount) * 2;
       LOGGER.info("Using up to " + threadCount + " threads to run tests.");
       executorService = Executors.newFixedThreadPool(threadCount, threadFactory);
       childCounter = new Phaser();
