tools/rtla: Add -U/--user-load option to timerlat

[linux-2.6-microblaze.git] / tools / tracing / rtla / src / timerlat_top.c

diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index 3e9af2c..8a3fa64 100644 (file)
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -43,6 +43,7 @@ struct timerlat_top_params {
        int                     cgroup;
        int                     hk_cpus;
        int                     user_top;
+       int                     user_workload;
        cpu_set_t               hk_cpu_set;
        struct sched_attr       sched_param;
        struct trace_events     *events;
@@ -364,6 +365,7 @@ static void timerlat_top_usage(char *usage)
                "               d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period",
                "                                                      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",
                NULL,
        };
 
@@ -423,6 +425,7 @@ static struct timerlat_top_params
                        {"thread",              required_argument,      0, 'T'},
                        {"trace",               optional_argument,      0, 't'},
                        {"user-threads",        no_argument,            0, 'u'},
+                       {"user-load",           no_argument,            0, 'U'},
                        {"trigger",             required_argument,      0, '0'},
                        {"filter",              required_argument,      0, '1'},
                        {"dma-latency",         required_argument,      0, '2'},
@@ -435,7 +438,7 @@ static struct timerlat_top_params
                /* 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:u0:1:2:345:",
+               c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:np:P:qs:t::T:uU0:1:2:345:",
                                 long_options, &option_index);
 
                /* detect the end of the options. */
@@ -552,6 +555,9 @@ static struct timerlat_top_params
 
                        break;
                case 'u':
+                       params->user_workload = true;
+                       /* fallback: -u implies -U */
+               case 'U':
                        params->user_top = true;
                        break;
                case '0': /* trigger */
@@ -869,7 +875,7 @@ int timerlat_top_main(int argc, char *argv[])
        top->start_time = time(NULL);
        timerlat_top_set_signals(params);
 
-       if (params->user_top) {
+       if (params->user_workload) {
                /* rtla asked to stop */
                params_u.should_run = 1;
                /* all threads left */
@@ -912,7 +918,7 @@ int timerlat_top_main(int argc, char *argv[])
                        break;
 
                /* is there still any user-threads ? */
-               if (params->user_top) {
+               if (params->user_workload) {
                        if (params_u.stopped_running) {
                                debug_msg("timerlat user space threads stopped!\n");
                                break;
@@ -920,7 +926,7 @@ int timerlat_top_main(int argc, char *argv[])
                }
        }
 
-       if (params->user_top && !params_u.stopped_running) {
+       if (params->user_workload && !params_u.stopped_running) {
                params_u.should_run = 0;
                sleep(1);
        }