thesis/linux-6.8.1/tools/perf/tests/workloads/leafloop.c
2025-03-19 13:44:23 +01:00

34 lines
527 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#include <stdlib.h>
#include <linux/compiler.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;
noinline void leaf(volatile int b)
{
for (;;)
a += b;
}
noinline void parent(volatile int b)
{
leaf(b);
}
static int leafloop(int argc, const char **argv)
{
int c = 1;
if (argc > 0)
c = atoi(argv[0]);
parent(c);
return 0;
}
DEFINE_WORKLOAD(leafloop);