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path: root/tools/tracing/rtla/src/osnoise_top.c
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Diffstat (limited to 'tools/tracing/rtla/src/osnoise_top.c')
-rw-r--r--tools/tracing/rtla/src/osnoise_top.c92
1 files changed, 86 insertions, 6 deletions
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index c67dc28ef716..72c2fd6ce005 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -23,6 +23,7 @@ struct osnoise_top_params {
char *trace_output;
unsigned long long runtime;
unsigned long long period;
+ long long threshold;
long long stop_us;
long long stop_total_us;
int sleep_time;
@@ -30,6 +31,7 @@ struct osnoise_top_params {
int quiet;
int set_sched;
struct sched_attr sched_param;
+ struct trace_events *events;
};
struct osnoise_top_cpu {
@@ -244,18 +246,24 @@ void osnoise_top_usage(char *usage)
int i;
static const char * const msg[] = {
- " usage: rtla osnoise [top] [-h] [-q] [-D] [-d s] [-p us] [-r us] [-s us] [-S us] [-t[=file]] \\",
+ " usage: rtla osnoise [top] [-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] [-P priority]",
"",
" -h/--help: print this menu",
+ " -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit",
" -p/--period us: osnoise period in us",
" -r/--runtime us: osnoise runtime in us",
" -s/--stop us: stop trace if a single sample is higher than the argument in us",
" -S/--stop-total us: stop trace if the total sample is higher than the argument in us",
+ " -T/--threshold us: the minimum delta to be considered a noise",
" -c/--cpus cpu-list: list of cpus to run osnoise threads",
" -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]",
+ " -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",
" -q/--quiet print only a summary at the end",
" -P/--priority o:prio|r:prio|f:prio|d:runtime:period : set scheduling parameters",
" o:prio - use SCHED_OTHER with prio",
@@ -283,6 +291,7 @@ void osnoise_top_usage(char *usage)
struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
{
struct osnoise_top_params *params;
+ struct trace_events *tevent;
int retval;
int c;
@@ -292,9 +301,11 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
while (1) {
static struct option long_options[] = {
+ {"auto", required_argument, 0, 'a'},
{"cpus", required_argument, 0, 'c'},
{"debug", no_argument, 0, 'D'},
{"duration", required_argument, 0, 'd'},
+ {"event", required_argument, 0, 'e'},
{"help", no_argument, 0, 'h'},
{"period", required_argument, 0, 'p'},
{"priority", required_argument, 0, 'P'},
@@ -302,14 +313,17 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
{"runtime", required_argument, 0, 'r'},
{"stop", required_argument, 0, 's'},
{"stop-total", required_argument, 0, 'S'},
+ {"threshold", required_argument, 0, 'T'},
{"trace", optional_argument, 0, 't'},
+ {"trigger", required_argument, 0, '0'},
+ {"filter", required_argument, 0, '1'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "c:d:Dhp:P:qr:s:S:t::",
+ c = getopt_long(argc, argv, "a:c:d:De:hp:P:qr:s:S:t::T:0:1:",
long_options, &option_index);
/* Detect the end of the options. */
@@ -317,6 +331,17 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
break;
switch (c) {
+ case 'a':
+ /* set sample stop to auto_thresh */
+ params->stop_us = get_llong_from_str(optarg);
+
+ /* set sample threshold to 1 */
+ params->threshold = 1;
+
+ /* set trace */
+ params->trace_output = "osnoise_trace.txt";
+
+ break;
case 'c':
retval = parse_cpu_list(optarg, &params->monitored_cpus);
if (retval)
@@ -331,6 +356,18 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
if (!params->duration)
osnoise_top_usage("Invalid -D duration\n");
break;
+ case 'e':
+ tevent = trace_event_alloc(optarg);
+ if (!tevent) {
+ err_msg("Error alloc trace event");
+ exit(EXIT_FAILURE);
+ }
+
+ if (params->events)
+ tevent->next = params->events;
+ params->events = tevent;
+
+ break;
case 'h':
case '?':
osnoise_top_usage(NULL);
@@ -367,6 +404,31 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv)
else
params->trace_output = "osnoise_trace.txt";
break;
+ case 'T':
+ params->threshold = get_llong_from_str(optarg);
+ break;
+ case '0': /* trigger */
+ if (params->events) {
+ retval = trace_event_add_trigger(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding trigger %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ osnoise_top_usage("--trigger requires a previous -e\n");
+ }
+ break;
+ case '1': /* filter */
+ if (params->events) {
+ retval = trace_event_add_filter(params->events, optarg);
+ if (retval) {
+ err_msg("Error adding filter %s\n", optarg);
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ osnoise_top_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
osnoise_top_usage("Invalid option");
}
@@ -425,6 +487,14 @@ osnoise_top_apply_config(struct osnoise_tool *tool, struct osnoise_top_params *p
}
}
+ if (params->threshold) {
+ retval = osnoise_set_tracing_thresh(tool->context, params->threshold);
+ if (retval) {
+ err_msg("Failed to set tracing_thresh\n");
+ goto out_err;
+ }
+ }
+
return 0;
out_err:
@@ -529,13 +599,20 @@ int osnoise_top_main(int argc, char **argv)
err_msg("Failed to enable the trace instance\n");
goto out_top;
}
+
+ if (params->events) {
+ retval = trace_events_enable(&record->trace, params->events);
+ if (retval)
+ goto out_top;
+ }
+
trace_instance_start(&record->trace);
}
tool->start_time = time(NULL);
osnoise_top_set_signals(params);
- do {
+ while (!stop_tracing) {
sleep(params->sleep_time);
retval = tracefs_iterate_raw_events(trace->tep,
@@ -552,16 +629,16 @@ int osnoise_top_main(int argc, char **argv)
if (!params->quiet)
osnoise_print_stats(params, tool);
- if (!tracefs_trace_is_on(trace->inst))
+ if (trace_is_off(&tool->trace, &record->trace))
break;
- } while (!stop_tracing);
+ }
osnoise_print_stats(params, tool);
return_value = 0;
- if (!tracefs_trace_is_on(trace->inst)) {
+ if (trace_is_off(&tool->trace, &record->trace)) {
printf("osnoise hit stop tracing\n");
if (params->trace_output) {
printf(" Saving trace to %s\n", params->trace_output);
@@ -570,9 +647,12 @@ int osnoise_top_main(int argc, char **argv)
}
out_top:
+ trace_events_destroy(&record->trace, params->events);
+ params->events = NULL;
osnoise_free_top(tool->data);
osnoise_destroy_tool(record);
osnoise_destroy_tool(tool);
+ free(params);
out_exit:
exit(return_value);
}
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