projects/linux·commit 20f463fb

Merge tag 'trace-rtla-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

20f463fb · Linus Torvalds <[email protected]> · 2022-03-23 11:08:10 -07:00

Pull RTLA tracing tool updates from Steven Rostedt:
 "Real Time Analysis Tool updatesfor 5.18:

   - Support for adjusting tracing_threashold

   - Add -a (auto) option to make it easier for users to debug in the field

   - Add -e option to add more events to the trace

   - Add --trigger option to add triggers to events

   - Add --filter option to filter events

   - Add support to save histograms to the file

   - Add --dma-latency to set /dev/cpu_dma_latency

   - Other fixes and cleanups"

* tag 'trace-rtla-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  rtla: Tools main loop cleanup
  rtla/timerlat: Add --dma-latency option
  rtla/osnoise: Fix osnoise hist stop tracing message
  rtla: Check for trace off also in the trace instance
  rtla/trace: Save event histogram output to a file
  rtla: Add --filter support
  rtla/trace: Add trace event filter helpers
  rtla: Add --trigger support
  rtla/trace: Add trace event trigger helpers
  rtla: Add -e/--event support
  rtla/trace: Add trace events helpers
  rtla/timerlat: Add the automatic trace option
  rtla/osnoise: Add the automatic trace option
  rtla/osnoise: Add an option to set the threshold
  rtla/osnoise: Add support to adjust the tracing_thresh
Commit
20f463fb38686dd3fe7e6903cab56bdbbf756238
Parents
3ef4ea3d · 75016ca3

Merge commit. Changes below are compared with the first parent: 3ef4ea3d.

Changes

13 files changed · +903 −28

FileStatusAddDelContent
Documentation/tools/rtla/common_options.rstmodified+19−0View file
Documentation/tools/rtla/common_osnoise_options.rstmodified+10−0View file
Documentation/tools/rtla/common_timerlat_options.rstmodified+12−0View file
tools/tracing/rtla/src/osnoise.cmodified+83−0View file
tools/tracing/rtla/src/osnoise.hmodified+8−0View file
tools/tracing/rtla/src/osnoise_hist.cmodified+87−8View file
tools/tracing/rtla/src/osnoise_top.cmodified+85−6View file
tools/tracing/rtla/src/timerlat_hist.cmodified+100−8View file
tools/tracing/rtla/src/timerlat_top.cmodified+97−6View file
tools/tracing/rtla/src/trace.cmodified+345−0View file
tools/tracing/rtla/src/trace.hmodified+23−0View file
tools/tracing/rtla/src/utils.cmodified+33−0View file
tools/tracing/rtla/src/utils.hmodified+1−0View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/tools/rtla/common_options.rst

View file
diff --git a/Documentation/tools/rtla/common_options.rst b/Documentation/tools/rtla/common_options.rst
index 721790a..af76df6 100644
--- a/Documentation/tools/rtla/common_options.rst
+++ b/Documentation/tools/rtla/common_options.rst
@@ -14,6 +14,25 @@
Save the stopped trace to [*file|osnoise_trace.txt*].
+**-e**, **--event** *sys:event*
+
+ Enable an event in the trace (**-t**) session. The argument can be a specific event, e.g., **-e** *sched:sched_switch*, or all events of a system group, e.g., **-e** *sched*. Multiple **-e** are allowed. It is only active when **-t** or **-a** are set.
+
+**--filter** *<filter>*
+
+ Filter the previous **-e** *sys:event* event with *<filter>*. For further information about event filtering see https://www.kernel.org/doc/html/latest/trace/events.html#event-filtering.
+
+**--trigger** *<trigger>*
+ Enable a trace event trigger to the previous **-e** *sys:event*.
+ If the *hist:* trigger is activated, the output histogram will be automatically saved to a file named *system_event_hist.txt*.
+ For example, the command:
+
+ rtla <command> <mode> -t -e osnoise:irq_noise --trigger="hist:key=desc,duration/1000:sort=desc,duration/1000:vals=hitcount"
+
+ Will automatically save the content of the histogram associated to *osnoise:irq_noise* event in *osnoise_irq_noise_hist.txt*.
+
+ For further information about event trigger see https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers.
+
**-P**, **--priority** *o:prio|r:prio|f:prio|d:runtime:period*
Set scheduling parameters to the osnoise tracer threads, the format to set the priority are:

Documentation/tools/rtla/common_osnoise_options.rst

View file
diff --git a/Documentation/tools/rtla/common_osnoise_options.rst b/Documentation/tools/rtla/common_osnoise_options.rst
index d556883..f792ca5 100644
--- a/Documentation/tools/rtla/common_osnoise_options.rst
+++ b/Documentation/tools/rtla/common_osnoise_options.rst
@@ -1,3 +1,8 @@
+**-a**, **--auto** *us*
+
+ Set the automatic trace mode. This mode sets some commonly used options
+ while debugging the system. It is equivalent to use **-s** *us* **-T 1 -t**.
+
**-p**, **--period** *us*
Set the *osnoise* tracer period in microseconds.
@@ -15,3 +20,8 @@
Stop the trace if the total sample is higher than the argument in microseconds.
If **-T** is set, it will also save the trace to the output.
+
+**-T**, **--threshold** *us*
+
+ Specify the minimum delta between two time reads to be considered noise.
+ The default threshold is *5 us*.

Documentation/tools/rtla/common_timerlat_options.rst

View file
diff --git a/Documentation/tools/rtla/common_timerlat_options.rst b/Documentation/tools/rtla/common_timerlat_options.rst
index e9c1bfd..bacdea6 100644
--- a/Documentation/tools/rtla/common_timerlat_options.rst
+++ b/Documentation/tools/rtla/common_timerlat_options.rst
@@ -1,3 +1,10 @@
+**-a**, **--auto** *us*
+
+ Set the automatic trace mode. This mode sets some commonly used options
+ while debugging the system. It is equivalent to use **-T** *us* **-s** *us*
+ **-t**. By default, *timerlat* tracer uses FIFO:95 for *timerlat* threads,
+ thus equilavent to **-P** *f:95*.
+
**-p**, **--period** *us*
Set the *timerlat* tracer period in microseconds.
@@ -14,3 +21,8 @@
Save the stack trace at the *IRQ* if a *Thread* latency is higher than the
argument in us.
+
+**--dma-latency** *us*
+ Set the /dev/cpu_dma_latency to *us*, aiming to bound exit from idle latencies.
+ *cyclictest* sets this value to *0* by default, use **--dma-latency** *0* to have
+ similar results.

tools/tracing/rtla/src/osnoise.c

View file
diff --git a/tools/tracing/rtla/src/osnoise.c b/tools/tracing/rtla/src/osnoise.c
index e60f186..b8ec6c1 100644
--- a/tools/tracing/rtla/src/osnoise.c
+++ b/tools/tracing/rtla/src/osnoise.c
@@ -656,6 +656,85 @@ void osnoise_put_print_stack(struct osnoise_context *context)
}
/*
+ * osnoise_get_tracing_thresh - read and save the original "tracing_thresh"
+ */
+static long long
+osnoise_get_tracing_thresh(struct osnoise_context *context)
+{
+ long long tracing_thresh;
+
+ if (context->tracing_thresh != OSNOISE_OPTION_INIT_VAL)
+ return context->tracing_thresh;
+
+ if (context->orig_tracing_thresh != OSNOISE_OPTION_INIT_VAL)
+ return context->orig_tracing_thresh;
+
+ tracing_thresh = osnoise_read_ll_config("tracing_thresh");
+ if (tracing_thresh < 0)
+ goto out_err;
+
+ context->orig_tracing_thresh = tracing_thresh;
+ return tracing_thresh;
+
+out_err:
+ return OSNOISE_OPTION_INIT_VAL;
+}
+
+/*
+ * osnoise_set_tracing_thresh - set "tracing_thresh"
+ */
+int osnoise_set_tracing_thresh(struct osnoise_context *context, long long tracing_thresh)
+{
+ long long curr_tracing_thresh = osnoise_get_tracing_thresh(context);
+ int retval;
+
+ if (curr_tracing_thresh == OSNOISE_OPTION_INIT_VAL)
+ return -1;
+
+ retval = osnoise_write_ll_config("tracing_thresh", tracing_thresh);
+ if (retval < 0)
+ return -1;
+
+ context->tracing_thresh = tracing_thresh;
+
+ return 0;
+}
+
+/*
+ * osnoise_restore_tracing_thresh - restore the original "tracing_thresh"
+ */
+void osnoise_restore_tracing_thresh(struct osnoise_context *context)
+{
+ int retval;
+
+ if (context->orig_tracing_thresh == OSNOISE_OPTION_INIT_VAL)
+ return;
+
+ if (context->orig_tracing_thresh == context->tracing_thresh)
+ goto out_done;
+
+ retval = osnoise_write_ll_config("tracing_thresh", context->orig_tracing_thresh);
+ if (retval < 0)
+ err_msg("Could not restore original tracing_thresh\n");
+
+out_done:
+ context->tracing_thresh = OSNOISE_OPTION_INIT_VAL;
+}
+
+/*
+ * osnoise_put_tracing_thresh - restore original values and cleanup data
+ */
+void osnoise_put_tracing_thresh(struct osnoise_context *context)
+{
+ osnoise_restore_tracing_thresh(context);
+
+ if (context->orig_tracing_thresh == OSNOISE_OPTION_INIT_VAL)
+ return;
+
+ context->orig_tracing_thresh = OSNOISE_OPTION_INIT_VAL;
+}
+
+/*
* enable_osnoise - enable osnoise tracer in the trace_instance
*/
int enable_osnoise(struct trace_instance *trace)
@@ -716,6 +795,9 @@ struct osnoise_context *osnoise_context_alloc(void)
context->orig_print_stack = OSNOISE_OPTION_INIT_VAL;
context->print_stack = OSNOISE_OPTION_INIT_VAL;
+ context->orig_tracing_thresh = OSNOISE_OPTION_INIT_VAL;
+ context->tracing_thresh = OSNOISE_OPTION_INIT_VAL;
+
osnoise_get_context(context);
return context;
@@ -741,6 +823,7 @@ void osnoise_put_context(struct osnoise_context *context)
osnoise_put_stop_total_us(context);
osnoise_put_timerlat_period_us(context);
osnoise_put_print_stack(context);
+ osnoise_put_tracing_thresh(context);
free(context);
}

tools/tracing/rtla/src/osnoise.h

View file
diff --git a/tools/tracing/rtla/src/osnoise.h b/tools/tracing/rtla/src/osnoise.h
index 9e4b2e2..04a4384 100644
--- a/tools/tracing/rtla/src/osnoise.h
+++ b/tools/tracing/rtla/src/osnoise.h
@@ -23,6 +23,10 @@ struct osnoise_context {
long long orig_timerlat_period_us;
long long timerlat_period_us;
+ /* 0 as init value */
+ long long orig_tracing_thresh;
+ long long tracing_thresh;
+
/* -1 as init value because 0 is disabled */
long long orig_stop_us;
long long stop_us;
@@ -67,6 +71,10 @@ int osnoise_set_timerlat_period_us(struct osnoise_context *context,
long long timerlat_period_us);
void osnoise_restore_timerlat_period_us(struct osnoise_context *context);
+int osnoise_set_tracing_thresh(struct osnoise_context *context,
+ long long tracing_thresh);
+void osnoise_restore_tracing_thresh(struct osnoise_context *context);
+
void osnoise_restore_print_stack(struct osnoise_context *context);
int osnoise_set_print_stack(struct osnoise_context *context,
long long print_stack);

tools/tracing/rtla/src/osnoise_hist.c

View file
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index 52c053c..b4380d4 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -21,6 +21,7 @@ struct osnoise_hist_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;
@@ -28,6 +29,7 @@ struct osnoise_hist_params {
int set_sched;
int output_divisor;
struct sched_attr sched_param;
+ struct trace_events *events;
char no_header;
char no_summary;
@@ -425,19 +427,25 @@ static void osnoise_hist_usage(char *usage)
static const char * const msg[] = {
"",
- " usage: rtla osnoise hist [-h] [-D] [-d s] [-p us] [-r us] [-s us] [-S us] [-t[=file]] \\",
- " [-c cpu-list] [-P priority] [-b N] [-E N] [--no-header] [--no-summary] \\",
- " [--no-index] [--with-zeros]",
+ " usage: rtla osnoise hist [-h] [-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] [-b N] [-E N] [--no-header] [--no-summary] [--no-index] \\",
+ " [--with-zeros]",
"",
" -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",
" -b/--bucket-size N: set the histogram bucket size (default 1)",
" -E/--entries N: set the number of entries of the histogram (default 256)",
" --no-header: do not print header",
@@ -471,6 +479,7 @@ static struct osnoise_hist_params
*osnoise_hist_parse_args(int argc, char *argv[])
{
struct osnoise_hist_params *params;
+ struct trace_events *tevent;
int retval;
int c;
@@ -485,6 +494,7 @@ static struct osnoise_hist_params
while (1) {
static struct option long_options[] = {
+ {"auto", required_argument, 0, 'a'},
{"bucket-size", required_argument, 0, 'b'},
{"entries", required_argument, 0, 'E'},
{"cpus", required_argument, 0, 'c'},
@@ -497,17 +507,21 @@ static struct osnoise_hist_params
{"stop", required_argument, 0, 's'},
{"stop-total", required_argument, 0, 'S'},
{"trace", optional_argument, 0, 't'},
+ {"event", required_argument, 0, 'e'},
+ {"threshold", required_argument, 0, 'T'},
{"no-header", no_argument, 0, '0'},
{"no-summary", no_argument, 0, '1'},
{"no-index", no_argument, 0, '2'},
{"with-zeros", no_argument, 0, '3'},
+ {"trigger", required_argument, 0, '4'},
+ {"filter", required_argument, 0, '5'},
{0, 0, 0, 0}
};
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "c:b:d:E:Dhp:P:r:s:S:t::0123",
+ c = getopt_long(argc, argv, "a:c:b:d:e:E:Dhp:P:r:s:S:t::T:01234:5:",
long_options, &option_index);
/* detect the end of the options. */
@@ -515,6 +529,17 @@ static struct osnoise_hist_params
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 'b':
params->bucket_size = get_llong_from_str(optarg);
if ((params->bucket_size == 0) || (params->bucket_size >= 1000000))
@@ -534,6 +559,18 @@ static struct osnoise_hist_params
if (!params->duration)
osnoise_hist_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 'E':
params->entries = get_llong_from_str(optarg);
if ((params->entries < 10) || (params->entries > 9999999))
@@ -565,6 +602,9 @@ static struct osnoise_hist_params
case 'S':
params->stop_total_us = get_llong_from_str(optarg);
break;
+ case 'T':
+ params->threshold = get_llong_from_str(optarg);
+ break;
case 't':
if (optarg)
/* skip = */
@@ -584,6 +624,28 @@ static struct osnoise_hist_params
case '3': /* with zeros */
params->with_zeros = 1;
break;
+ case '4': /* 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_hist_usage("--trigger requires a previous -e\n");
+ }
+ break;
+ case '5': /* 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_hist_usage("--filter requires a previous -e\n");
+ }
+ break;
default:
osnoise_hist_usage("Invalid option");
}
@@ -645,6 +707,14 @@ osnoise_hist_apply_config(struct osnoise_tool *tool, struct osnoise_hist_params
}
}
+ 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:
@@ -751,6 +821,13 @@ int osnoise_hist_main(int argc, char *argv[])
err_msg("Failed to enable the trace instance\n");
goto out_hist;
}
+
+ if (params->events) {
+ retval = trace_events_enable(&record->trace, params->events);
+ if (retval)
+ goto out_hist;
+ }
+
trace_instance_start(&record->trace);
}
@@ -771,9 +848,9 @@ int osnoise_hist_main(int argc, char *argv[])
goto out_hist;
}
- if (!tracefs_trace_is_on(trace->inst))
+ if (trace_is_off(&tool->trace, &record->trace))
break;
- };
+ }
osnoise_read_trace_hist(tool);
@@ -781,8 +858,8 @@ int osnoise_hist_main(int argc, char *argv[])
return_value = 0;
- if (!tracefs_trace_is_on(trace->inst)) {
- printf("rtla timelat hit stop tracing\n");
+ if (trace_is_off(&tool->trace, &record->trace)) {
+ printf("rtla osnoise hit stop tracing\n");
if (params->trace_output) {
printf(" Saving trace to %s\n", params->trace_output);
save_trace_to_file(record->trace.inst, params->trace_output);
@@ -790,6 +867,8 @@ int osnoise_hist_main(int argc, char *argv[])
}
out_hist:
+ trace_events_destroy(&record->trace, params->events);
+ params->events = NULL;
osnoise_free_histogram(tool->data);
out_destroy:
osnoise_destroy_tool(record);

tools/tracing/rtla/src/osnoise_top.c

View file
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index 7af769b..72c2fd6 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;
+ }
+ }

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tools/tracing/rtla/src/timerlat_hist.c

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tools/tracing/rtla/src/timerlat_top.c

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tools/tracing/rtla/src/trace.c

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tools/tracing/rtla/src/trace.h

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tools/tracing/rtla/src/utils.c

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tools/tracing/rtla/src/utils.h

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