diff options
| -rw-r--r-- | doc/tutorial.txt | 5 | ||||
| -rw-r--r-- | src/rt-app.c | 20 | ||||
| -rw-r--r-- | src/rt-app_parse_config.c | 3 | ||||
| -rw-r--r-- | src/rt-app_types.h | 1 |
4 files changed, 29 insertions, 0 deletions
diff --git a/doc/tutorial.txt b/doc/tutorial.txt index 6dc9a44..100a2df 100644 --- a/doc/tutorial.txt +++ b/doc/tutorial.txt @@ -217,6 +217,11 @@ number of loop thanks to the ns per loop value (see calibration). This way of working enables to emulate a load with a duration that will vary with the frequency or the compute capacity of the CPU. +* runtime : Integer. The duration is define in usec. Similar to the +run event, it emulates the execution of a load. Unlike run, runtime +runs for a specific amount of time irrespective of the compute +capacity of the CPU or the frequency. + * sleep : Integer. Emulate the sleep of a task. The duration is defined in usec. diff --git a/src/rt-app.c b/src/rt-app.c index 679d39a..5283ac7 100644 --- a/src/rt-app.c +++ b/src/rt-app.c @@ -274,6 +274,26 @@ static int run_event(event_data_t *event, int dry_run, *duration += timespec_to_usec(&t_end); } break; + case rtapp_runtime: + { + struct timespec t_start, t_end; + int64_t diff_ns; + + log_debug("runtime %d ", event->duration); + clock_gettime(CLOCK_MONOTONIC, &t_start); + + do { + /* Do work for 32usec */ + *perf += loadwait(32); + + clock_gettime(CLOCK_MONOTONIC, &t_end); + diff_ns = timespec_sub_to_ns(&t_end, &t_start); + } while ((diff_ns / 1000) < event->duration); + + t_end = timespec_sub(&t_end, &t_start); + *duration += timespec_to_usec(&t_end); + } + break; case rtapp_timer: { struct timespec t_period, t_now; diff --git a/src/rt-app_parse_config.c b/src/rt-app_parse_config.c index 99b0e5e..c59b562 100644 --- a/src/rt-app_parse_config.c +++ b/src/rt-app_parse_config.c @@ -348,6 +348,8 @@ parse_thread_event_data(char *name, struct json_object *obj, if (!strncmp(name, "sleep", strlen("sleep"))) data->type = rtapp_sleep; + else if (!strncmp(name, "runtime", strlen("runtime"))) + data->type = rtapp_runtime; else data->type = rtapp_run; @@ -558,6 +560,7 @@ static char *events[] = { "broad", "sync", "sleep", + "runtime", "run", "timer", "suspend", diff --git a/src/rt-app_types.h b/src/rt-app_types.h index 2ce9c9d..57fb80d 100644 --- a/src/rt-app_types.h +++ b/src/rt-app_types.h @@ -67,6 +67,7 @@ typedef enum resource_t rtapp_resume, rtapp_mem, rtapp_iorun, + rtapp_runtime, } resource_t; struct _rtapp_mutex { |