diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat_top.c')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_top.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c index 0acfefe151f7..3a23e8d481c6 100644 --- a/tools/tracing/rtla/src/timerlat_top.c +++ b/tools/tracing/rtla/src/timerlat_top.c @@ -47,6 +47,7 @@ struct timerlat_top_params { int kernel_workload; int pretty_output; int warmup; + int buffer_size; cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; @@ -479,6 +480,7 @@ static void timerlat_top_usage(char *usage) " -k/--kernel-threads: use timerlat kernel-space threads instead of rtla user-space 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", + " --trace-buffer-size kB: set the per-cpu trace buffer size in kB", NULL, }; @@ -547,13 +549,14 @@ static struct timerlat_top_params {"dump-tasks", no_argument, 0, '4'}, {"aa-only", required_argument, 0, '5'}, {"warm-up", required_argument, 0, '6'}, + {"trace-buffer-size", required_argument, 0, '7'}, {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:knp:P:qs:t::T:uU0:1:2:345:6:", + c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:knp:P:qs:t::T:uU0:1:2:345:6:7:", long_options, &option_index); /* detect the end of the options. */ @@ -716,6 +719,9 @@ static struct timerlat_top_params case '6': params->warmup = get_llong_from_str(optarg); break; + case '7': + params->buffer_size = get_llong_from_str(optarg); + break; default: timerlat_top_usage("Invalid option"); } @@ -973,6 +979,12 @@ int timerlat_top_main(int argc, char *argv[]) if (retval) goto out_top; } + + if (params->buffer_size > 0) { + retval = trace_set_buffer_size(&record->trace, params->buffer_size); + if (retval) + goto out_top; + } } if (!params->no_aa) { |