1 files changed, 46 insertions, 0 deletions
diff --git a/tools/perf/tests/workloads/leafloop.c b/tools/perf/tests/workloads/leafloop.c
new file mode 100644
index 000000000000..f7561767e32c
--- /dev/null
+++ b/tools/perf/tests/workloads/leafloop.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <signal.h>
+#include <stdlib.h>
+#include <linux/compiler.h>
+#include <unistd.h>
+#include "../tests.h"
+
+/* We want to check these symbols in perf script */
+noinline void leaf(volatile int b);
+noinline void parent(volatile int b);
+
+static volatile int a;
+static volatile sig_atomic_t done;
+
+static void sighandler(int sig __maybe_unused)
+{
+	done = 1;
+}
+
+noinline void leaf(volatile int b)
+{
+	while (!done)
+		a += b;
+}
+
+noinline void parent(volatile int b)
+{
+	leaf(b);
+}
+
+static int leafloop(int argc, const char **argv)
+{
+	int sec = 1;
+
+	if (argc > 0)
+		sec = atoi(argv[0]);
+
+	signal(SIGINT, sighandler);
+	signal(SIGALRM, sighandler);
+	alarm(sec);
+
+	parent(sec);
+	return 0;
+}
+
+DEFINE_WORKLOAD(leafloop);