linux-zen-server/tools/perf/tests/workloads/brstack.c

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2023-08-30 17:53:23 +02:00
/* SPDX-License-Identifier: GPL-2.0 */
#include <stdlib.h>
#include "../tests.h"
#define BENCH_RUNS 999999
static volatile int cnt;
static void brstack_bar(void) {
} /* return */
static void brstack_foo(void) {
brstack_bar(); /* call */
} /* return */
static void brstack_bench(void) {
void (*brstack_foo_ind)(void) = brstack_foo;
if ((cnt++) % 3) /* branch (cond) */
brstack_foo(); /* call */
brstack_bar(); /* call */
brstack_foo_ind(); /* call (ind) */
}
static int brstack(int argc, const char **argv)
{
int num_loops = BENCH_RUNS;
if (argc > 0)
num_loops = atoi(argv[0]);
while (1) {
if ((cnt++) > num_loops)
break;
brstack_bench();/* call */
} /* branch (uncond) */
return 0;
}
DEFINE_WORKLOAD(brstack);