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-rw-r--r--test/syscalls/linux/BUILD5
-rw-r--r--test/syscalls/linux/concurrency.cc3
2 files changed, 6 insertions, 2 deletions
diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD
index cad130358..0f2a6add6 100644
--- a/test/syscalls/linux/BUILD
+++ b/test/syscalls/linux/BUILD
@@ -520,13 +520,14 @@ cc_binary(
srcs = ["concurrency.cc"],
linkstatic = 1,
deps = [
- "@com_google_absl//absl/strings",
- "@com_google_absl//absl/time",
+ gbenchmark,
gtest,
"//test/util:platform_util",
"//test/util:test_main",
"//test/util:test_util",
"//test/util:thread_util",
+ "@com_google_absl//absl/strings",
+ "@com_google_absl//absl/time",
],
)
diff --git a/test/syscalls/linux/concurrency.cc b/test/syscalls/linux/concurrency.cc
index 7cd6a75bd..f2daf49ee 100644
--- a/test/syscalls/linux/concurrency.cc
+++ b/test/syscalls/linux/concurrency.cc
@@ -20,6 +20,7 @@
#include "absl/strings/string_view.h"
#include "absl/time/clock.h"
#include "absl/time/time.h"
+#include "benchmark/benchmark.h"
#include "test/util/platform_util.h"
#include "test/util/test_util.h"
#include "test/util/thread_util.h"
@@ -106,6 +107,8 @@ TEST(ConcurrencyTest, MultiProcessConcurrency) {
pid_t child_pid = fork();
if (child_pid == 0) {
while (true) {
+ int x = 0;
+ benchmark::DoNotOptimize(x); // Don't optimize this loop away.
}
}
ASSERT_THAT(child_pid, SyscallSucceeds());