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Message-ID: <96f305f622de233c28d4ed9f23583b4d6ab2d1ac.1755018581.git.ipravdin.official@gmail.com>
Date: Tue, 12 Aug 2025 13:21:11 -0400
From: Ivan Pravdin <ipravdin.official@...il.com>
To: rostedt@...dmis.org,
corbet@....net,
tglozar@...hat.com,
linux-trace-kernel@...r.kernel.org,
linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: Ivan Pravdin <ipravdin.official@...il.com>
Subject: [PATCH v2 3/3] rtla: fix -a overriding -t argument
When running rtla as
`rtla <timerlat|osnoise> <top|hist> -t custom_file.txt -a 100`
-a options override trace output filename specified by -t option.
Running the command above will create <timerlat|osnoise>_trace.txt file
instead of custom_file.txt. Fix this by making sure that -a option does
not override trace output filename even if it's passed after trace
output filename is specified.
Remove clear_terminal in timerlat top as it removes "Saving trace to <filename>"
line from the terminal and is not used in other modes.
Fixes: 173a3b014827 ("rtla/timerlat: Add the automatic trace option")
Signed-off-by: Ivan Pravdin <ipravdin.official@...il.com>
---
tools/tracing/rtla/src/osnoise_hist.c | 8 +++++---
tools/tracing/rtla/src/osnoise_top.c | 8 +++++---
tools/tracing/rtla/src/timerlat_hist.c | 8 +++++---
tools/tracing/rtla/src/timerlat_top.c | 20 +++++---------------
4 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
index 298640d92434..53655bccbbad 100644
--- a/tools/tracing/rtla/src/osnoise_hist.c
+++ b/tools/tracing/rtla/src/osnoise_hist.c
@@ -543,7 +543,8 @@ static struct osnoise_params
params->threshold = 1;
/* set trace */
- params->trace_output = "osnoise_trace.txt";
+ if (!params->trace_output)
+ params->trace_output = "osnoise_trace.txt";
break;
case 'b':
@@ -640,10 +641,11 @@ static struct osnoise_params
params->trace_output = &optarg[1];
else
params->trace_output = &optarg[0];
- } else if (optind < argc && argv[optind][0] != '0')
+ } else if (optind < argc && argv[optind][0] != '0') {
params->trace_output = argv[optind];
- else
+ } else {
params->trace_output = "osnoise_trace.txt";
+ }
break;
case '0': /* no header */
params->no_header = 1;
diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
index 70924242bcdd..db61a0c970e9 100644
--- a/tools/tracing/rtla/src/osnoise_top.c
+++ b/tools/tracing/rtla/src/osnoise_top.c
@@ -383,7 +383,8 @@ struct osnoise_params *osnoise_top_parse_args(int argc, char **argv)
params->threshold = 1;
/* set trace */
- params->trace_output = "osnoise_trace.txt";
+ if (!params->trace_output)
+ params->trace_output = "osnoise_trace.txt";
break;
case 'c':
@@ -470,10 +471,11 @@ struct osnoise_params *osnoise_top_parse_args(int argc, char **argv)
params->trace_output = &optarg[1];
else
params->trace_output = &optarg[0];
- } else if (optind < argc && argv[optind][0] != '-')
+ } else if (optind < argc && argv[optind][0] != '-') {
params->trace_output = argv[optind];
- else
+ } else {
params->trace_output = "osnoise_trace.txt";
+ }
break;
case 'T':
params->threshold = get_llong_from_str(optarg);
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index 2a48a076d941..123b7f89f80a 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -874,7 +874,8 @@ static struct timerlat_params
params->print_stack = auto_thresh;
/* set trace */
- trace_output = "timerlat_trace.txt";
+ if (!trace_output)
+ trace_output = "timerlat_trace.txt";
break;
case 'c':
@@ -972,10 +973,11 @@ static struct timerlat_params
trace_output = &optarg[1];
else
trace_output = &optarg[0];
- } else if (optind < argc && argv[optind][0] != '-')
+ } else if (optind < argc && argv[optind][0] != '-') {
trace_output = argv[optind];
- else
+ } else {
trace_output = "timerlat_trace.txt";
+ }
break;
case 'u':
params->user_workload = 1;
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index e45d9978744c..4d7c3d74ac50 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -423,15 +423,6 @@ timerlat_top_print_sum(struct osnoise_tool *top, struct timerlat_top_cpu *summar
}
}
-/*
- * clear_terminal - clears the output terminal
- */
-static void clear_terminal(struct trace_seq *seq)
-{
- if (!config_debug)
- trace_seq_printf(seq, "\033c");
-}
-
/*
* timerlat_print_stats - print data for all cpus
*/
@@ -449,9 +440,6 @@ timerlat_print_stats(struct timerlat_params *params, struct osnoise_tool *top)
if (nr_cpus == -1)
nr_cpus = sysconf(_SC_NPROCESSORS_CONF);
- if (!params->quiet)
- clear_terminal(trace->seq);
-
timerlat_top_reset_sum(&summary);
timerlat_top_header(params, top);
@@ -625,7 +613,8 @@ static struct timerlat_params
params->print_stack = auto_thresh;
/* set trace */
- trace_output = "timerlat_trace.txt";
+ if (!trace_output)
+ trace_output = "timerlat_trace.txt";
break;
case '5':
@@ -729,10 +718,11 @@ static struct timerlat_params
trace_output = &optarg[1];
else
trace_output = &optarg[0];
- } else if (optind < argc && argv[optind][0] != '-')
+ } else if (optind < argc && argv[optind][0] != '-') {
trace_output = argv[optind];
- else
+ } else {
trace_output = "timerlat_trace.txt";
+ }
break;
case 'u':
params->user_workload = true;
--
2.48.1
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