@@ -67,18 +67,23 @@ struct State *statep;
const int policy = SCHED_FIFO;
static int prio_min; /* Initialized for the minimum priority of policy */
+static char outfile[MAX_PATH];
+
+static void write_stats(FILE *f, void *data);
+
static void usage(int error)
{
printf("pip_stress V %1.2f\n", VERSION);
printf("Usage:\n"
"pip_stress <options>\n"\
- "-h --help Show this help menu.\n"
+ "-h --help Show this help menu.\n"
+ " --output=FILENAME write final results into FILENAME, JSON formatted\n"
);
exit(error);
}
enum option_values {
- OPT_HELP=1
+ OPT_HELP=1, OPT_OUTPUT,
};
int main(int argc, char *argv[])
@@ -89,9 +94,11 @@ int main(int argc, char *argv[])
int res;
int *minimum_priority = (int*)&prio_min;
+ rt_init(argc, argv);
for (;;) {
struct option long_options[] = {
{"help", no_argument, NULL, OPT_HELP},
+ {"output", required_argument, NULL, OPT_OUTPUT },
{NULL, 0, NULL, 0}
};
@@ -103,6 +110,9 @@ int main(int argc, char *argv[])
case 'h':
usage(0);
break;
+ case OPT_OUTPUT:
+ strncpy(outfile, optarg, strnlen(optarg, MAX_PATH-1));
+ break;
default:
usage(1);
break;
@@ -145,6 +155,7 @@ int main(int argc, char *argv[])
err_exit(err, NULL);
}
+ rt_test_start();
pid1 = fork();
if (pid1 == -1) {
perror("fork");
@@ -165,6 +176,9 @@ int main(int argc, char *argv[])
}
}
+ if (strlen(outfile) != 0)
+ rt_write_json(outfile, write_stats, NULL);
+
if (!statep->inversion) {
printf("No inversion incurred\n");
exit(1);
@@ -370,3 +384,8 @@ int get_rt_prio(pid_t pid)
}
return param.sched_priority;
}
+
+static void write_stats(FILE *f, void *data)
+{
+ fprintf(f, " \"inversion\": %d\n", statep->inversion);
+}
Write the test results as JSON output to a file. This allows to simplifies any parsing later on. Signed-off-by: Daniel Wagner <dwagner@suse.de> --- src/pi_tests/pip_stress.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-)