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reduce CPU usage of the performance monitor

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This commit is contained in:
Gabor Kiss-Vamosi 2020-02-28 13:22:44 +01:00
parent f25633f60f
commit ea81e21dd0
1 changed files with 43 additions and 41 deletions
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22
src/lv_core/lv_refr.c
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@ -175,6 +175,7 @@ void lv_disp_refr_task(lv_task_t * task)
LV_LOG_TRACE("lv_refr_task: started"); LV_LOG_TRACE("lv_refr_task: started");
uint32_t start = lv_tick_get(); uint32_t start = lv_tick_get();
uint32_t elaps = 0;
/* Ensure the task does not run again automatically. /* Ensure the task does not run again automatically.
* This is done before refreshing in case refreshing invalidates something else. * This is done before refreshing in case refreshing invalidates something else.
@ -183,10 +184,6 @@ void lv_disp_refr_task(lv_task_t * task)
disp_refr = task->user_data; disp_refr = task->user_data;
// extern rect_cache_t cache[];
// extern uint32_t cp;
lv_refr_join_area(); lv_refr_join_area();
lv_refr_areas(); lv_refr_areas();
@ -232,11 +229,14 @@ void lv_disp_refr_task(lv_task_t * task)
memset(disp_refr->inv_area_joined, 0, sizeof(disp_refr->inv_area_joined)); memset(disp_refr->inv_area_joined, 0, sizeof(disp_refr->inv_area_joined));
disp_refr->inv_p = 0; disp_refr->inv_p = 0;
uint32_t elaps = lv_tick_elaps(start); elaps = lv_tick_elaps(start);
/*Call monitor cb if present*/ /*Call monitor cb if present*/
if(disp_refr->driver.monitor_cb) { if(disp_refr->driver.monitor_cb) {
disp_refr->driver.monitor_cb(&disp_refr->driver, elaps, px_num); disp_refr->driver.monitor_cb(&disp_refr->driver, elaps, px_num);
} }
}
lv_mem_buf_free_all();
#if LV_USE_PERF_MONITOR && LV_USE_LABEL #if LV_USE_PERF_MONITOR && LV_USE_LABEL
static lv_obj_t * perf_label = NULL; static lv_obj_t * perf_label = NULL;
@ -258,8 +258,13 @@ void lv_disp_refr_task(lv_task_t * task)
static uint32_t elaps_max = 1; static uint32_t elaps_max = 1;
if(lv_tick_elaps(perf_last_time) < 300) { if(lv_tick_elaps(perf_last_time) < 300) {
elaps_max = LV_MATH_MAX(elaps, elaps_max); elaps_max = LV_MATH_MAX(elaps, elaps_max);
/*Just refresh the label to always have something to monitor*/ /*Just refresh 1 px to have something to monitor*/
lv_label_set_text(perf_label, NULL); lv_area_t a;
a.x1 = lv_disp_get_hor_res(disp_refr) - 1;
a.y1 = lv_disp_get_ver_res(disp_refr) - 1;
a.x2 = a.x1;
a.y2 = a.y1;
lv_inv_area(disp_refr, &a);
} else { } else {
perf_last_time = lv_tick_get(); perf_last_time = lv_tick_get();
uint32_t fps = 1000 / (elaps_max == 0 ? 1 : elaps_max); uint32_t fps = 1000 / (elaps_max == 0 ? 1 : elaps_max);
@ -272,9 +277,6 @@ void lv_disp_refr_task(lv_task_t * task)
lv_obj_align(perf_label, NULL, LV_ALIGN_IN_BOTTOM_RIGHT, 0, 0); lv_obj_align(perf_label, NULL, LV_ALIGN_IN_BOTTOM_RIGHT, 0, 0);
} }
#endif #endif
}
lv_mem_buf_free_all();
LV_LOG_TRACE("lv_refr_task: ready"); LV_LOG_TRACE("lv_refr_task: ready");
} }