diff options
author | Daniel Bristot de Oliveira <bristot@kernel.org> | 2023-06-06 18:12:17 +0200 |
---|---|---|
committer | Steven Rostedt (Google) <rostedt@goodmis.org> | 2023-06-13 16:28:56 -0400 |
commit | 894c29c76b2b4c2cfbe1482dab42e4f03b49cf18 (patch) | |
tree | 5a0c7c0b94fe9c1118057b111e70e3054313ac5b /tools | |
parent | 272ced2556e63943113a54c113f8c11aeb53a5c3 (diff) | |
download | linux-stable-894c29c76b2b4c2cfbe1482dab42e4f03b49cf18.tar.gz linux-stable-894c29c76b2b4c2cfbe1482dab42e4f03b49cf18.tar.bz2 linux-stable-894c29c76b2b4c2cfbe1482dab42e4f03b49cf18.zip |
rtla: Change monitored_cpus from char * to cpu_set_t
Use a cpumask instead of a char *, reducing memory footprint and code.
No functional change, and in preparation for auto house-keeping.
Link: https://lkml.kernel.org/r/54c46293261d13cb1042d0314486539eeb45fe5d.1686066600.git.bristot@kernel.org
Cc: William White <chwhite@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Tested-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/tracing/rtla/src/osnoise_hist.c | 18 | ||||
-rw-r--r-- | tools/tracing/rtla/src/osnoise_top.c | 6 | ||||
-rw-r--r-- | tools/tracing/rtla/src/timerlat_hist.c | 18 | ||||
-rw-r--r-- | tools/tracing/rtla/src/timerlat_top.c | 6 | ||||
-rw-r--r-- | tools/tracing/rtla/src/utils.c | 63 |
5 files changed, 24 insertions, 87 deletions
diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c index d2b68177ffac..b616a72d5c0a 100644 --- a/tools/tracing/rtla/src/osnoise_hist.c +++ b/tools/tracing/rtla/src/osnoise_hist.c @@ -19,7 +19,7 @@ struct osnoise_hist_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -274,7 +274,7 @@ static void osnoise_hist_header(struct osnoise_tool *tool) trace_seq_printf(s, "Index"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -305,7 +305,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "count:"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -319,7 +319,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "min: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -334,7 +334,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "avg: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -352,7 +352,7 @@ osnoise_print_summary(struct osnoise_hist_params *params, trace_seq_printf(trace->seq, "max: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -387,7 +387,7 @@ osnoise_print_stats(struct osnoise_hist_params *params, struct osnoise_tool *too bucket * data->bucket_size); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -411,7 +411,7 @@ osnoise_print_stats(struct osnoise_hist_params *params, struct osnoise_tool *too trace_seq_printf(trace->seq, "over: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].count) @@ -559,7 +559,7 @@ static struct osnoise_hist_params osnoise_hist_usage("Bucket size needs to be > 0 and <= 1000000\n"); break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) osnoise_hist_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c index fcf6c14ce1bc..0e2f3b216d34 100644 --- a/tools/tracing/rtla/src/osnoise_top.c +++ b/tools/tracing/rtla/src/osnoise_top.c @@ -26,7 +26,7 @@ enum osnoise_mode { */ struct osnoise_top_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -263,7 +263,7 @@ osnoise_print_stats(struct osnoise_top_params *params, struct osnoise_tool *top) osnoise_top_header(top); for (i = 0; i < nr_cpus; i++) { - if (params->cpus && !params->monitored_cpus[i]) + if (params->cpus && !CPU_ISSET(i, ¶ms->monitored_cpus)) continue; osnoise_top_print(top, i); } @@ -397,7 +397,7 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv) break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) osnoise_top_usage(params, "\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index d48c05d238f9..00287e96f22e 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -19,7 +19,7 @@ struct timerlat_hist_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -227,7 +227,7 @@ static void timerlat_hist_header(struct osnoise_tool *tool) trace_seq_printf(s, "Index"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -263,7 +263,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "count:"); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -283,7 +283,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "min: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -303,7 +303,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "avg: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -331,7 +331,7 @@ timerlat_print_summary(struct timerlat_hist_params *params, trace_seq_printf(trace->seq, "max: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -371,7 +371,7 @@ timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *t bucket * data->bucket_size); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -405,7 +405,7 @@ timerlat_print_stats(struct timerlat_hist_params *params, struct osnoise_tool *t trace_seq_printf(trace->seq, "over: "); for (cpu = 0; cpu < data->nr_cpus; cpu++) { - if (params->cpus && !params->monitored_cpus[cpu]) + if (params->cpus && !CPU_ISSET(cpu, ¶ms->monitored_cpus)) continue; if (!data->hist[cpu].irq_count && !data->hist[cpu].thread_count) @@ -565,7 +565,7 @@ static struct timerlat_hist_params break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) timerlat_hist_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index 5395d1c5921e..920f2f6ef842 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -21,7 +21,7 @@ struct timerlat_top_params { char *cpus; - char *monitored_cpus; + cpu_set_t monitored_cpus; char *trace_output; char *cgroup_name; unsigned long long runtime; @@ -271,7 +271,7 @@ timerlat_print_stats(struct timerlat_top_params *params, struct osnoise_tool *to timerlat_top_header(top); for (i = 0; i < nr_cpus; i++) { - if (params->cpus && !params->monitored_cpus[i]) + if (params->cpus && !CPU_ISSET(i, ¶ms->monitored_cpus)) continue; timerlat_top_print(top, i); } @@ -422,7 +422,7 @@ static struct timerlat_top_params params->aa_only = 1; break; case 'c': - retval = parse_cpu_list(optarg, ¶ms->monitored_cpus); + retval = parse_cpu_set(optarg, ¶ms->monitored_cpus); if (retval) timerlat_top_usage("\nInvalid -c cpu list\n"); params->cpus = optarg; diff --git a/tools/tracing/rtla/src/utils.c b/tools/tracing/rtla/src/utils.c index ee6fab09acae..8f9ad8f01e0f 100644 --- a/tools/tracing/rtla/src/utils.c +++ b/tools/tracing/rtla/src/utils.c @@ -89,69 +89,6 @@ void get_duration(time_t start_time, char *output, int output_size) } /* - * parse_cpu_list - parse a cpu_list filling a char vector with cpus set - * - * Receives a cpu list, like 1-3,5 (cpus 1, 2, 3, 5), and then set the char - * in the monitored_cpus. - * - * XXX: convert to a bitmask. - */ -int parse_cpu_list(char *cpu_list, char **monitored_cpus) -{ - char *mon_cpus; - const char *p; - int end_cpu; - int nr_cpus; - int cpu; - int i; - - nr_cpus = sysconf(_SC_NPROCESSORS_CONF); - - mon_cpus = calloc(nr_cpus, sizeof(char)); - if (!mon_cpus) - goto err; - - for (p = cpu_list; *p; ) { - cpu = atoi(p); - if (cpu < 0 || (!cpu && *p != '0') || cpu >= nr_cpus) - goto err; - - while (isdigit(*p)) - p++; - if (*p == '-') { - p++; - end_cpu = atoi(p); - if (end_cpu < cpu || (!end_cpu && *p != '0') || end_cpu >= nr_cpus) - goto err; - while (isdigit(*p)) - p++; - } else - end_cpu = cpu; - - if (cpu == end_cpu) { - debug_msg("cpu_list: adding cpu %d\n", cpu); - mon_cpus[cpu] = 1; - } else { - for (i = cpu; i <= end_cpu; i++) { - debug_msg("cpu_list: adding cpu %d\n", i); - mon_cpus[i] = 1; - } - } - - if (*p == ',') - p++; - } - - *monitored_cpus = mon_cpus; - - return 0; - -err: - debug_msg("Error parsing the cpu list %s", cpu_list); - return 1; -} - -/* * parse_cpu_set - parse a cpu_list filling cpu_set_t argument * * Receives a cpu list, like 1-3,5 (cpus 1, 2, 3, 5), and then set |