Initialize metrics only for Zygote process or when forced via CLI arg

Bug: 357802879
Test: -
  1. art/tools/buildbot-build.sh --target
  2. art/tools/buildbot-sync.sh
  3. art/tools/run-gtests.sh -j4
  4. art/test/testrunner/testrunner.py --target --64
Change-Id: I49843f10e22ae69490950e806bdec5408a893ac9

1 files changed, 28 insertions, 0 deletions

diff --git a/runtime/runtime_test.cc b/runtime/runtime_test.cc
index cd0c862d82..1faecf36a8 100644
--- a/runtime/runtime_test.cc
+++ b/runtime/runtime_test.cc
@@ -109,4 +109,32 @@ TEST_F(RuntimeTest, ElfAlignmentMismatch) {
   EXPECT_EQ(kElfSegmentAlignment, elf_file->GetElfSegmentAlignmentFromFile());
 }
 
+class RuntimeInitMetricsDefaultTest : public CommonRuntimeTest {};
+
+TEST_F(RuntimeInitMetricsDefaultTest, MetricsAreNotInitialized) {
+  ASSERT_FALSE(runtime_->AreMetricsInitialized());
+}
+
+class RuntimeInitMetricsZygoteTest : public CommonRuntimeTest {
+  void SetUpRuntimeOptions(RuntimeOptions* options) override {
+    CommonRuntimeTest::SetUpRuntimeOptions(options);
+    options->emplace_back(std::make_pair("-Xzygote", nullptr));
+  }
+};
+
+TEST_F(RuntimeInitMetricsZygoteTest, MetricsAreInitialized) {
+  ASSERT_TRUE(runtime_->AreMetricsInitialized());
+}
+
+class RuntimeInitMetricsForceEnableTest : public CommonRuntimeTest {
+  void SetUpRuntimeOptions(RuntimeOptions* options) override {
+    CommonRuntimeTest::SetUpRuntimeOptions(options);
+    options->emplace_back(std::make_pair("-Xmetrics-force-enable:true", nullptr));
+  }
+};
+
+TEST_F(RuntimeInitMetricsForceEnableTest, MetricsAreInitialized) {
+  ASSERT_TRUE(runtime_->AreMetricsInitialized());
+}
+
 }  // namespace art