diff options
Diffstat (limited to 'tools/perf/tests/workloads/traploop.c')
-rw-r--r-- | tools/perf/tests/workloads/traploop.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/perf/tests/workloads/traploop.c b/tools/perf/tests/workloads/traploop.c new file mode 100644 index 000000000000..68dec399a735 --- /dev/null +++ b/tools/perf/tests/workloads/traploop.c @@ -0,0 +1,31 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdlib.h> +#include "../tests.h" + +#define BENCH_RUNS 999999 + +#ifdef __aarch64__ +static void trap_bench(void) +{ + unsigned long val; + + asm("mrs %0, ID_AA64ISAR0_EL1" : "=r" (val)); /* TRAP + ERET */ +} +#else +static void trap_bench(void) { } +#endif + +static int traploop(int argc, const char **argv) +{ + int num_loops = BENCH_RUNS; + + if (argc > 0) + num_loops = atoi(argv[0]); + + for (int i = 0; i < num_loops; i++) + trap_bench(); + + return 0; +} + +DEFINE_WORKLOAD(traploop); |