Add basic microbenchmarks.

PiperOrigin-RevId: 296104390

4 files changed, 18 insertions, 2 deletions

diff --git a/test/util/BUILD b/test/util/BUILD
index 1f22ebe29..8b5a0f25c 100644
--- a/test/util/BUILD
+++ b/test/util/BUILD
@@ -1,4 +1,4 @@
-load("//tools:defs.bzl", "cc_library", "cc_test", "gtest", "select_system")
+load("//tools:defs.bzl", "cc_library", "cc_test", "gbenchmark", "gtest", "select_system")
 
 package(
     default_visibility = ["//:sandbox"],
@@ -260,6 +260,7 @@ cc_library(
         "@com_google_absl//absl/strings:str_format",
         "@com_google_absl//absl/time",
         gtest,
+        gbenchmark,
     ],
 )
 
diff --git a/test/util/test_main.cc b/test/util/test_main.cc
index 5c7ee0064..1f389e58f 100644
--- a/test/util/test_main.cc
+++ b/test/util/test_main.cc
@@ -16,5 +16,5 @@
 
 int main(int argc, char** argv) {
   gvisor::testing::TestInit(&argc, &argv);
-  return RUN_ALL_TESTS();
+  return gvisor::testing::RunAllTests();
 }
diff --git a/test/util/test_util.h b/test/util/test_util.h
index 2d22b0eb8..c5cb9d6d6 100644
--- a/test/util/test_util.h
+++ b/test/util/test_util.h
@@ -771,6 +771,7 @@ std::string RunfilePath(std::string path);
 #endif
 
 void TestInit(int* argc, char*** argv);
+int RunAllTests(void);
 
 }  // namespace testing
 }  // namespace gvisor
diff --git a/test/util/test_util_impl.cc b/test/util/test_util_impl.cc
index ba7c0a85b..7e1ad9e66 100644
--- a/test/util/test_util_impl.cc
+++ b/test/util/test_util_impl.cc
@@ -17,8 +17,12 @@
 #include "gtest/gtest.h"
 #include "absl/flags/flag.h"
 #include "absl/flags/parse.h"
+#include "benchmark/benchmark.h"
 #include "test/util/logging.h"
 
+extern bool FLAGS_benchmark_list_tests;
+extern std::string FLAGS_benchmark_filter;
+
 namespace gvisor {
 namespace testing {
 
@@ -26,6 +30,7 @@ void SetupGvisorDeathTest() {}
 
 void TestInit(int* argc, char*** argv) {
   ::testing::InitGoogleTest(argc, *argv);
+  benchmark::Initialize(argc, *argv);
   ::absl::ParseCommandLine(*argc, *argv);
 
   // Always mask SIGPIPE as it's common and tests aren't expected to handle it.
@@ -34,5 +39,14 @@ void TestInit(int* argc, char*** argv) {
   TEST_CHECK(sigaction(SIGPIPE, &sa, nullptr) == 0);
 }
 
+int RunAllTests() {
+  if (FLAGS_benchmark_list_tests || FLAGS_benchmark_filter != ".") {
+    benchmark::RunSpecifiedBenchmarks();
+    return 0;
+  } else {
+    return RUN_ALL_TESTS();
+  }
+}
+
 }  // namespace testing
 }  // namespace gvisor