diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat_hist.c')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_hist.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index 6eb6e38d4a05..d4bab86ca1b9 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -54,6 +54,7 @@ struct timerlat_hist_params { int bucket_size; int entries; int warmup; + int buffer_size; }; struct timerlat_hist_cpu { @@ -669,6 +670,7 @@ static void timerlat_hist_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, }; @@ -745,13 +747,14 @@ static struct timerlat_hist_params {"no-aa", no_argument, 0, '9'}, {"dump-task", no_argument, 0, '\1'}, {"warm-up", required_argument, 0, '\2'}, + {"trace-buffer-size", required_argument, 0, '\3'}, {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:knp:P:s:t::T:uU0123456:7:8:9\1\2:", + c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:knp:P:s:t::T:uU0123456:7:8:9\1\2:\3", long_options, &option_index); /* detect the end of the options. */ @@ -926,6 +929,9 @@ static struct timerlat_hist_params case '\2': params->warmup = get_llong_from_str(optarg); break; + case '\3': + params->buffer_size = get_llong_from_str(optarg); + break; default: timerlat_hist_usage("Invalid option"); } @@ -1179,6 +1185,12 @@ int timerlat_hist_main(int argc, char *argv[]) if (retval) goto out_hist; } + + if (params->buffer_size > 0) { + retval = trace_set_buffer_size(&record->trace, params->buffer_size); + if (retval) + goto out_hist; + } } if (!params->no_aa) { |