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Message-ID: <krmo42jpyowqokrkkhhbwqauiyvovt2ankyr6ho6hiwwgotxhp@pxztuoifxemf>
Date: Tue, 16 Dec 2025 13:17:43 -0300
From: Wander Lairson Costa <wander@...hat.com>
To: Costa Shulyupin <costa.shul@...hat.com>
Cc: Steven Rostedt <rostedt@...dmis.org>,
Tomas Glozar <tglozar@...hat.com>, Crystal Wood <crwood@...hat.com>, John Kacur <jkacur@...hat.com>,
Ivan Pravdin <ipravdin.official@...il.com>, linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/8] tools/rtla: Consolidate -d/--duration option
parsing
On Tue, Dec 09, 2025 at 12:00:44PM +0200, Costa Shulyupin wrote:
> Each rtla tool duplicates parsing of -d/--duration.
>
> Migrate the option parsing from individual tools to the
> common_parse_options().
>
> Signed-off-by: Costa Shulyupin <costa.shul@...hat.com>
> ---
> tools/tracing/rtla/src/common.c | 8 +++++++-
> 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 | 8 +-------
> 5 files changed, 11 insertions(+), 29 deletions(-)
>
> diff --git a/tools/tracing/rtla/src/common.c b/tools/tracing/rtla/src/common.c
> index 5bf79a9bb152..e6ff011d2cd2 100644
> --- a/tools/tracing/rtla/src/common.c
> +++ b/tools/tracing/rtla/src/common.c
> @@ -59,11 +59,12 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
> {"cpus", required_argument, 0, 'c'},
> {"cgroup", optional_argument, 0, 'C'},
> {"debug", no_argument, 0, 'D'},
> + {"duration", required_argument, 0, 'd'},
> {0, 0, 0, 0}
> };
>
> opterr = 0;
> - c = getopt_long(argc, argv, "c:C::D", long_options, NULL);
> + c = getopt_long(argc, argv, "c:C::Dd:", long_options, NULL);
> opterr = 1;
>
> switch (c) {
> @@ -79,6 +80,11 @@ int common_parse_options(int argc, char **argv, struct common_params *common)
> case 'D':
> config_debug = 1;
> break;
> + case 'd':
> + common->duration = parse_seconds_duration(optarg);
> + if (!common->duration)
> + fatal("Invalid -d duration");
> + break;
> default:
> optind = saved_state;
> return 0;
> diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c
> index 6902486fb144..1b79bfefc214 100644
> --- a/tools/tracing/rtla/src/osnoise_hist.c
> +++ b/tools/tracing/rtla/src/osnoise_hist.c
> @@ -491,7 +491,6 @@ static struct common_params
> {"auto", required_argument, 0, 'a'},
> {"bucket-size", required_argument, 0, 'b'},
> {"entries", required_argument, 0, 'E'},
> - {"duration", required_argument, 0, 'd'},
> {"house-keeping", required_argument, 0, 'H'},
> {"help", no_argument, 0, 'h'},
> {"period", required_argument, 0, 'p'},
> @@ -518,7 +517,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:b:d:e:E:hH:p:P:r:s:S:t::T:01234:5:6:7:",
> + c = getopt_long(argc, argv, "a:b:e:E:hH:p:P:r:s:S:t::T:01234:5:6:7:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -544,11 +543,6 @@ static struct common_params
> params->common.hist.bucket_size >= 1000000)
> fatal("Bucket size needs to be > 0 and <= 1000000");
> break;
> - case 'd':
> - params->common.duration = parse_seconds_duration(optarg);
> - if (!params->common.duration)
> - fatal("Invalid -D duration");
> - break;
> case 'e':
> tevent = trace_event_alloc(optarg);
> if (!tevent)
> diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c
> index 4a61fd50b990..619c5bcf8f35 100644
> --- a/tools/tracing/rtla/src/osnoise_top.c
> +++ b/tools/tracing/rtla/src/osnoise_top.c
> @@ -346,7 +346,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> while (1) {
> static struct option long_options[] = {
> {"auto", required_argument, 0, 'a'},
> - {"duration", required_argument, 0, 'd'},
> {"event", required_argument, 0, 'e'},
> {"house-keeping", required_argument, 0, 'H'},
> {"help", no_argument, 0, 'h'},
> @@ -370,7 +369,7 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:d:e:hH:p:P:qr:s:S:t::T:0:1:2:3:",
> + c = getopt_long(argc, argv, "a:e:hH:p:P:qr:s:S:t::T:0:1:2:3:",
> long_options, NULL);
>
> /* Detect the end of the options. */
> @@ -390,11 +389,6 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
> trace_output = "osnoise_trace.txt";
>
> break;
> - case 'd':
> - params->common.duration = parse_seconds_duration(optarg);
> - if (!params->common.duration)
> - fatal("Invalid -d duration");
> - break;
> case 'e':
> tevent = trace_event_alloc(optarg);
> if (!tevent)
> diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
> index 97d20e272583..0a7e5dcce121 100644
> --- a/tools/tracing/rtla/src/timerlat_hist.c
> +++ b/tools/tracing/rtla/src/timerlat_hist.c
> @@ -798,7 +798,6 @@ static struct common_params
> {"auto", required_argument, 0, 'a'},
> {"bucket-size", required_argument, 0, 'b'},
> {"entries", required_argument, 0, 'E'},
> - {"duration", required_argument, 0, 'd'},
> {"house-keeping", required_argument, 0, 'H'},
> {"help", no_argument, 0, 'h'},
> {"irq", required_argument, 0, 'i'},
> @@ -834,7 +833,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:b:d:e:E:hH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
> + c = getopt_long(argc, argv, "a:b:e:E:hH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -863,11 +862,6 @@ static struct common_params
> params->common.hist.bucket_size >= 1000000)
> fatal("Bucket size needs to be > 0 and <= 1000000");
> break;
> - case 'd':
> - params->common.duration = parse_seconds_duration(optarg);
> - if (!params->common.duration)
> - fatal("Invalid -D duration");
> - break;
> case 'e':
> tevent = trace_event_alloc(optarg);
> if (!tevent)
> diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
> index 96bca67d419f..4340fbf3f879 100644
> --- a/tools/tracing/rtla/src/timerlat_top.c
> +++ b/tools/tracing/rtla/src/timerlat_top.c
> @@ -566,7 +566,6 @@ static struct common_params
> while (1) {
> static struct option long_options[] = {
> {"auto", required_argument, 0, 'a'},
> - {"duration", required_argument, 0, 'd'},
> {"event", required_argument, 0, 'e'},
> {"help", no_argument, 0, 'h'},
> {"house-keeping", required_argument, 0, 'H'},
> @@ -598,7 +597,7 @@ static struct common_params
> if (common_parse_options(argc, argv, ¶ms->common))
> continue;
>
> - c = getopt_long(argc, argv, "a:d:e:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
> + c = getopt_long(argc, argv, "a:e:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:",
> long_options, NULL);
>
> /* detect the end of the options. */
> @@ -635,11 +634,6 @@ static struct common_params
> /* set aa_only to avoid parsing the trace */
> params->common.aa_only = 1;
> break;
> - case 'd':
> - params->common.duration = parse_seconds_duration(optarg);
> - if (!params->common.duration)
> - fatal("Invalid -d duration");
> - break;
> case 'e':
> tevent = trace_event_alloc(optarg);
> if (!tevent)
> --
> 2.52.0
>
Reviewed-by: Wander Lairson Costa <wander@...hat.com>
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