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Diffstat (limited to 'tools/tracing/rtla/src/osnoise_top.c')
-rw-r--r--tools/tracing/rtla/src/osnoise_top.c106
1 files changed, 35 insertions, 71 deletions
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index 95418f7ecc96..04c699bdd736 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -243,9 +243,7 @@ osnoise_print_stats(struct osnoise_tool *top)
osnoise_top_header(top);
- for (i = 0; i < nr_cpus; i++) {
- if (params->common.cpus && !CPU_ISSET(i, &params->common.monitored_cpus))
- continue;
+ for_each_monitored_cpu(i, nr_cpus, &params->common) {
osnoise_top_print(top, i);
}
@@ -257,14 +255,14 @@ osnoise_print_stats(struct osnoise_tool *top)
/*
* osnoise_top_usage - prints osnoise top usage message
*/
-static void osnoise_top_usage(struct osnoise_params *params, char *usage)
+static void osnoise_top_usage(struct osnoise_params *params)
{
int i;
static const char * const msg[] = {
" [-h] [-q] [-D] [-d s] [-a us] [-p us] [-r us] [-s us] [-S us] \\",
- " [-T us] [-t[file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] \\",
- " [-c cpu-list] [-H cpu-list] [-P priority] [-C[=cgroup_name]] [--warm-up s]",
+ " [-T us] [-t [file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] \\",
+ " [-c cpu-list] [-H cpu-list] [-P priority] [-C [cgroup_name]] [--warm-up s]",
"",
" -h/--help: print this menu",
" -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit",
@@ -275,10 +273,10 @@ static void osnoise_top_usage(struct osnoise_params *params, char *usage)
" -T/--threshold us: the minimum delta to be considered a noise",
" -c/--cpus cpu-list: list of cpus to run osnoise threads",
" -H/--house-keeping cpus: run rtla control threads only on the given cpus",
- " -C/--cgroup[=cgroup_name]: set cgroup, if no cgroup_name is passed, the rtla's cgroup will be inherited",
+ " -C/--cgroup [cgroup_name]: set cgroup, if no cgroup_name is passed, the rtla's cgroup will be inherited",
" -d/--duration time[s|m|h|d]: duration of the session",
" -D/--debug: print debug info",
- " -t/--trace[file]: save the stopped trace to [file|osnoise_trace.txt]",
+ " -t/--trace [file]: save the stopped trace to [file|osnoise_trace.txt]",
" -e/--event <sys:event>: enable the <sys:event> in the trace instance, multiple -e are allowed",
" --filter <filter>: enable a trace event filter to the previous -e event",
" --trigger <trigger>: enable a trace event trigger to the previous -e event",
@@ -296,9 +294,6 @@ static void osnoise_top_usage(struct osnoise_params *params, char *usage)
NULL,
};
- if (usage)
- fprintf(stderr, "%s\n", usage);
-
if (params->mode == MODE_OSNOISE) {
fprintf(stderr,
"rtla osnoise top: a per-cpu summary of the OS noise (version %s)\n",
@@ -318,9 +313,6 @@ static void osnoise_top_usage(struct osnoise_params *params, char *usage)
for (i = 0; msg[i]; i++)
fprintf(stderr, "%s\n", msg[i]);
- if (usage)
- exit(EXIT_FAILURE);
-
exit(EXIT_SUCCESS);
}
@@ -378,11 +370,8 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
{0, 0, 0, 0}
};
- /* getopt_long stores the option index here. */
- int option_index = 0;
-
c = getopt_long(argc, argv, "a:c:C::d:De:hH:p:P:qr:s:S:t::T:0:1:2:3:",
- long_options, &option_index);
+ long_options, NULL);
/* Detect the end of the options. */
if (c == -1)
@@ -397,24 +386,19 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
params->threshold = 1;
/* set trace */
- trace_output = "osnoise_trace.txt";
+ if (!trace_output)
+ trace_output = "osnoise_trace.txt";
break;
case 'c':
retval = parse_cpu_set(optarg, &params->common.monitored_cpus);
if (retval)
- osnoise_top_usage(params, "\nInvalid -c cpu list\n");
+ fatal("Invalid -c cpu list");
params->common.cpus = optarg;
break;
case 'C':
params->common.cgroup = 1;
- if (!optarg) {
- /* will inherit this cgroup */
- params->common.cgroup_name = NULL;
- } else if (*optarg == '=') {
- /* skip the = */
- params->common.cgroup_name = ++optarg;
- }
+ params->common.cgroup_name = parse_optional_arg(argc, argv);
break;
case 'D':
config_debug = 1;
@@ -422,14 +406,12 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
case 'd':
params->common.duration = parse_seconds_duration(optarg);
if (!params->common.duration)
- osnoise_top_usage(params, "Invalid -d duration\n");
+ fatal("Invalid -d duration");
break;
case 'e':
tevent = trace_event_alloc(optarg);
- if (!tevent) {
- err_msg("Error alloc trace event");
- exit(EXIT_FAILURE);
- }
+ if (!tevent)
+ fatal("Error alloc trace event");
if (params->common.events)
tevent->next = params->common.events;
@@ -438,25 +420,23 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
break;
case 'h':
case '?':
- osnoise_top_usage(params, NULL);
+ osnoise_top_usage(params);
break;
case 'H':
params->common.hk_cpus = 1;
retval = parse_cpu_set(optarg, &params->common.hk_cpu_set);
- if (retval) {
- err_msg("Error parsing house keeping CPUs\n");
- exit(EXIT_FAILURE);
- }
+ if (retval)
+ fatal("Error parsing house keeping CPUs");
break;
case 'p':
params->period = get_llong_from_str(optarg);
if (params->period > 10000000)
- osnoise_top_usage(params, "Period longer than 10 s\n");
+ fatal("Period longer than 10 s");
break;
case 'P':
retval = parse_prio(optarg, &params->common.sched_param);
if (retval == -1)
- osnoise_top_usage(params, "Invalid -P priority");
+ fatal("Invalid -P priority");
params->common.set_sched = 1;
break;
case 'q':
@@ -465,7 +445,7 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
case 'r':
params->runtime = get_llong_from_str(optarg);
if (params->runtime < 100)
- osnoise_top_usage(params, "Runtime shorter than 100 us\n");
+ fatal("Runtime shorter than 100 us");
break;
case 's':
params->common.stop_us = get_llong_from_str(optarg);
@@ -474,14 +454,8 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
params->common.stop_total_us = get_llong_from_str(optarg);
break;
case 't':
- if (optarg) {
- if (optarg[0] == '=')
- trace_output = &optarg[1];
- else
- trace_output = &optarg[0];
- } else if (optind < argc && argv[optind][0] != '-')
- trace_output = argv[optind];
- else
+ trace_output = parse_optional_arg(argc, argv);
+ if (!trace_output)
trace_output = "osnoise_trace.txt";
break;
case 'T':
@@ -490,23 +464,19 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
case '0': /* trigger */
if (params->common.events) {
retval = trace_event_add_trigger(params->common.events, optarg);
- if (retval) {
- err_msg("Error adding trigger %s\n", optarg);
- exit(EXIT_FAILURE);
- }
+ if (retval)
+ fatal("Error adding trigger %s", optarg);
} else {
- osnoise_top_usage(params, "--trigger requires a previous -e\n");
+ fatal("--trigger requires a previous -e");
}
break;
case '1': /* filter */
if (params->common.events) {
retval = trace_event_add_filter(params->common.events, optarg);
- if (retval) {
- err_msg("Error adding filter %s\n", optarg);
- exit(EXIT_FAILURE);
- }
+ if (retval)
+ fatal("Error adding filter %s", optarg);
} else {
- osnoise_top_usage(params, "--filter requires a previous -e\n");
+ fatal("--filter requires a previous -e");
}
break;
case '2':
@@ -518,31 +488,25 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
case '4':
retval = actions_parse(&params->common.threshold_actions, optarg,
"osnoise_trace.txt");
- if (retval) {
- err_msg("Invalid action %s\n", optarg);
- exit(EXIT_FAILURE);
- }
+ if (retval)
+ fatal("Invalid action %s", optarg);
break;
case '5':
retval = actions_parse(&params->common.end_actions, optarg,
"osnoise_trace.txt");
- if (retval) {
- err_msg("Invalid action %s\n", optarg);
- exit(EXIT_FAILURE);
- }
+ if (retval)
+ fatal("Invalid action %s", optarg);
break;
default:
- osnoise_top_usage(params, "Invalid option");
+ fatal("Invalid option");
}
}
if (trace_output)
actions_add_trace_output(&params->common.threshold_actions, trace_output);
- if (geteuid()) {
- err_msg("osnoise needs root permission\n");
- exit(EXIT_FAILURE);
- }
+ if (geteuid())
+ fatal("osnoise needs root permission");
return &params->common;
}
generated by cgit (git 2.34.1) at 2025-12-06 12:07:58 +0000