diff options
| -rw-r--r-- | Documentation/tools/rtla/common_options.rst | 4 | ||||
| -rw-r--r-- | tools/tracing/rtla/src/osnoise_hist.c | 30 | ||||
| -rw-r--r-- | tools/tracing/rtla/src/osnoise_top.c | 29 | ||||
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_hist.c | 49 | ||||
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_top.c | 47 |
5 files changed, 119 insertions, 40 deletions
diff --git a/Documentation/tools/rtla/common_options.rst b/Documentation/tools/rtla/common_options.rst index aeb91ff3bd68..a96ea0ed662e 100644 --- a/Documentation/tools/rtla/common_options.rst +++ b/Documentation/tools/rtla/common_options.rst @@ -50,6 +50,10 @@ Set a *cgroup* to the tracer's threads. If the **-C** option is passed without arguments, the tracer's thread will inherit **rtla**'s *cgroup*. Otherwise, the threads will be placed on the *cgroup* passed to the option. +**--warm-up** *s* + + After starting the workload, let it run for *s* seconds before starting collecting the data, allowing the system to warm-up. Statistical data generated during warm-up is discarded. + **-h**, **--help** Print help menu. diff --git a/tools/tracing/rtla/src/osnoise_hist.c b/tools/tracing/rtla/src/osnoise_hist.c index 01870d50942a..c6100ff46a7f 100644 --- a/tools/tracing/rtla/src/osnoise_hist.c +++ b/tools/tracing/rtla/src/osnoise_hist.c @@ -36,13 +36,13 @@ struct osnoise_hist_params { cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; - char no_header; char no_summary; char no_index; char with_zeros; int bucket_size; int entries; + int warmup; }; struct osnoise_hist_cpu { @@ -438,7 +438,7 @@ static void osnoise_hist_usage(char *usage) " 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] [-H cpu-list] [-P priority] [-b N] [-E N] [--no-header] [--no-summary] \\", - " [--no-index] [--with-zeros] [-C[=cgroup_name]]", + " [--no-index] [--with-zeros] [-C[=cgroup_name]] [--warm-up]", "", " -h/--help: print this menu", " -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit", @@ -468,6 +468,7 @@ static void osnoise_hist_usage(char *usage) " f:prio - use SCHED_FIFO with prio", " d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period", " in nanoseconds", + " --warm-up: let the workload run for s seconds before collecting data", NULL, }; @@ -531,13 +532,14 @@ static struct osnoise_hist_params {"with-zeros", no_argument, 0, '3'}, {"trigger", required_argument, 0, '4'}, {"filter", required_argument, 0, '5'}, + {"warm-up", required_argument, 0, '6'}, {0, 0, 0, 0} }; /* getopt_long stores the option index here. */ int option_index = 0; - c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:p:P:r:s:S:t::T:01234:5:", + c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:p:P:r:s:S:t::T:01234:5:6:", long_options, &option_index); /* detect the end of the options. */ @@ -680,6 +682,9 @@ static struct osnoise_hist_params osnoise_hist_usage("--filter requires a previous -e\n"); } break; + case '6': + params->warmup = get_llong_from_str(optarg); + break; default: osnoise_hist_usage("Invalid option"); } @@ -899,6 +904,25 @@ int osnoise_hist_main(int argc, char *argv[]) trace_instance_start(&record->trace); trace_instance_start(trace); + if (params->warmup > 0) { + debug_msg("Warming up for %d seconds\n", params->warmup); + sleep(params->warmup); + if (stop_tracing) + goto out_hist; + + /* + * Clean up the buffer. The osnoise workload do not run + * with tracing off to avoid creating a performance penalty + * when not needed. + */ + retval = tracefs_instance_file_write(trace->inst, "trace", ""); + if (retval < 0) { + debug_msg("Error cleaning up the buffer"); + goto out_hist; + } + + } + tool->start_time = time(NULL); osnoise_hist_set_signals(params); diff --git a/tools/tracing/rtla/src/osnoise_top.c b/tools/tracing/rtla/src/osnoise_top.c index 457360db0767..53a074c1222e 100644 --- a/tools/tracing/rtla/src/osnoise_top.c +++ b/tools/tracing/rtla/src/osnoise_top.c @@ -40,6 +40,7 @@ struct osnoise_top_params { int set_sched; int cgroup; int hk_cpus; + int warmup; cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; @@ -282,7 +283,7 @@ static void osnoise_top_usage(struct osnoise_top_params *params, char *usage) static const char * const msg[] = { " [-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] [-H cpu-list] [-P priority] [-C[=cgroup_name]]", + " [-c cpu-list] [-H cpu-list] [-P priority] [-C[=cgroup_name]] [--warm-up s]", "", " -h/--help: print this menu", " -a/--auto: set automatic trace mode, stopping the session if argument in us sample is hit", @@ -307,6 +308,7 @@ static void osnoise_top_usage(struct osnoise_top_params *params, char *usage) " f:prio - use SCHED_FIFO with prio", " d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period", " in nanoseconds", + " --warm-up s: let the workload run for s seconds before collecting data", NULL, }; @@ -381,13 +383,14 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv) {"trace", optional_argument, 0, 't'}, {"trigger", required_argument, 0, '0'}, {"filter", required_argument, 0, '1'}, + {"warm-up", required_argument, 0, '2'}, {0, 0, 0, 0} }; /* getopt_long stores the option index here. */ int option_index = 0; - c = getopt_long(argc, argv, "a:c:C::d:De:hH:p:P:qr:s:S:t::T:0:1:", + c = getopt_long(argc, argv, "a:c:C::d:De:hH:p:P:qr:s:S:t::T:0:1:2:", long_options, &option_index); /* Detect the end of the options. */ @@ -511,6 +514,9 @@ struct osnoise_top_params *osnoise_top_parse_args(int argc, char **argv) osnoise_top_usage(params, "--filter requires a previous -e\n"); } break; + case '2': + params->warmup = get_llong_from_str(optarg); + break; default: osnoise_top_usage(params, "Invalid option"); } @@ -732,6 +738,25 @@ int osnoise_top_main(int argc, char **argv) trace_instance_start(&record->trace); trace_instance_start(trace); + if (params->warmup > 0) { + debug_msg("Warming up for %d seconds\n", params->warmup); + sleep(params->warmup); + if (stop_tracing) + goto out_top; + + /* + * Clean up the buffer. The osnoise workload do not run + * with tracing off to avoid creating a performance penalty + * when not needed. + */ + retval = tracefs_instance_file_write(trace->inst, "trace", ""); + if (retval < 0) { + debug_msg("Error cleaning up the buffer"); + goto out_top; + } + + } + tool->start_time = time(NULL); osnoise_top_set_signals(params); diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index b12c6b571dd4..da1c353bdac9 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -52,6 +52,7 @@ struct timerlat_hist_params { char with_zeros; int bucket_size; int entries; + int warmup; }; struct timerlat_hist_cpu { @@ -628,6 +629,7 @@ static void timerlat_hist_usage(char *usage) " [-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] [-H cpu-list]\\", " [-P priority] [-E N] [-b N] [--no-irq] [--no-thread] [--no-header] [--no-summary] \\", " [--no-index] [--with-zeros] [--dma-latency us] [-C[=cgroup_name]] [--no-aa] [--dump-task] [-u]", + " [--warm-up s]", "", " -h/--help: print this menu", " -a/--auto: set automatic trace mode, stopping the session if argument in us latency is hit", @@ -664,6 +666,7 @@ static void timerlat_hist_usage(char *usage) " in nanoseconds", " -u/--user-threads: use rtla user-space threads instead of in-kernel timerlat threads", " -U/--user-load: enable timerlat for user-defined user-space workload", + " --warm-up s: let the workload run for s seconds before collecting data", NULL, }; @@ -738,13 +741,14 @@ static struct timerlat_hist_params {"dma-latency", required_argument, 0, '8'}, {"no-aa", no_argument, 0, '9'}, {"dump-task", no_argument, 0, '\1'}, + {"warm-up", required_argument, 0, '\2'}, {0, 0, 0, 0} }; /* getopt_long stores the option index here. */ int option_index = 0; - c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:np:P:s:t::T:uU0123456:7:8:9\1", + c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:np:P:s:t::T:uU0123456:7:8:9\1\2:", long_options, &option_index); /* detect the end of the options. */ @@ -913,6 +917,9 @@ static struct timerlat_hist_params case '\1': params->dump_tasks = 1; break; + case '\2': + params->warmup = get_llong_from_str(optarg); + break; default: timerlat_hist_usage("Invalid option"); } @@ -1167,22 +1174,6 @@ int timerlat_hist_main(int argc, char *argv[]) } } - /* - * Start the tracers here, after having set all instances. - * - * Let the trace instance start first for the case of hitting a stop - * tracing while enabling other instances. The trace instance is the - * one with most valuable information. - */ - if (params->trace_output) - trace_instance_start(&record->trace); - if (!params->no_aa) - trace_instance_start(&aa->trace); - trace_instance_start(trace); - - tool->start_time = time(NULL); - timerlat_hist_set_signals(params); - if (params->user_workload) { /* rtla asked to stop */ params_u.should_run = 1; @@ -1202,6 +1193,29 @@ int timerlat_hist_main(int argc, char *argv[]) err_msg("Error creating timerlat user-space threads\n"); } + if (params->warmup > 0) { + debug_msg("Warming up for %d seconds\n", params->warmup); + sleep(params->warmup); + if (stop_tracing) + goto out_hist; + } + + /* + * Start the tracers here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) + trace_instance_start(&record->trace); + if (!params->no_aa) + trace_instance_start(&aa->trace); + trace_instance_start(trace); + + tool->start_time = time(NULL); + timerlat_hist_set_signals(params); + while (!stop_tracing) { sleep(params->sleep_time); @@ -1227,6 +1241,7 @@ int timerlat_hist_main(int argc, char *argv[]) } } } + if (params->user_workload && !params_u.stopped_running) { params_u.should_run = 0; sleep(1); diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index bdcf8ef8f815..410eb5174913 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -45,6 +45,7 @@ struct timerlat_top_params { int user_top; int user_workload; int pretty_output; + int warmup; cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; @@ -444,7 +445,7 @@ static void timerlat_top_usage(char *usage) "", " usage: rtla timerlat [top] [-h] [-q] [-a us] [-d s] [-D] [-n] [-p us] [-i us] [-T us] [-s us] \\", " [[-t[=file]] [-e sys[:event]] [--filter <filter>] [--trigger <trigger>] [-c cpu-list] [-H cpu-list]\\", - " [-P priority] [--dma-latency us] [--aa-only us] [-C[=cgroup_name]] [-u]", + " [-P priority] [--dma-latency us] [--aa-only us] [-C[=cgroup_name]] [-u] [--warm-up s]", "", " -h/--help: print this menu", " -a/--auto: set automatic trace mode, stopping the session if argument in us latency is hit", @@ -475,6 +476,7 @@ static void timerlat_top_usage(char *usage) " in nanoseconds", " -u/--user-threads: use rtla user-space threads instead of in-kernel timerlat threads", " -U/--user-load: enable timerlat for user-defined user-space workload", + " --warm-up s: let the workload run for s seconds before collecting data", NULL, }; @@ -541,13 +543,14 @@ static struct timerlat_top_params {"no-aa", no_argument, 0, '3'}, {"dump-tasks", no_argument, 0, '4'}, {"aa-only", required_argument, 0, '5'}, + {"warm-up", required_argument, 0, '6'}, {0, 0, 0, 0} }; /* getopt_long stores the option index here. */ int option_index = 0; - c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:np:P:qs:t::T:uU0:1:2:345:", + c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:np:P:qs:t::T:uU0:1:2:345:6:", long_options, &option_index); /* detect the end of the options. */ @@ -704,6 +707,9 @@ static struct timerlat_top_params case '4': params->dump_tasks = 1; break; + case '6': + params->warmup = get_llong_from_str(optarg); + break; default: timerlat_top_usage("Invalid option"); } @@ -971,22 +977,6 @@ int timerlat_top_main(int argc, char *argv[]) } } - /* - * Start the tracers here, after having set all instances. - * - * Let the trace instance start first for the case of hitting a stop - * tracing while enabling other instances. The trace instance is the - * one with most valuable information. - */ - if (params->trace_output) - trace_instance_start(&record->trace); - if (!params->no_aa && aa != top) - trace_instance_start(&aa->trace); - trace_instance_start(trace); - - top->start_time = time(NULL); - timerlat_top_set_signals(params); - if (params->user_workload) { /* rtla asked to stop */ params_u.should_run = 1; @@ -1006,6 +996,27 @@ int timerlat_top_main(int argc, char *argv[]) err_msg("Error creating timerlat user-space threads\n"); } + if (params->warmup > 0) { + debug_msg("Warming up for %d seconds\n", params->warmup); + sleep(params->warmup); + } + + /* + * Start the tracers here, after having set all instances. + * + * Let the trace instance start first for the case of hitting a stop + * tracing while enabling other instances. The trace instance is the + * one with most valuable information. + */ + if (params->trace_output) + trace_instance_start(&record->trace); + if (!params->no_aa && aa != top) + trace_instance_start(&aa->trace); + trace_instance_start(trace); + + top->start_time = time(NULL); + timerlat_top_set_signals(params); + while (!stop_tracing) { sleep(params->sleep_time); |