From 71e3dd8a8b57a443d28440a26ccdab24c0f1267d Mon Sep 17 00:00:00 2001
From: Jakub <106778416+MarekZegare4@users.noreply.github.com>
Date: Thu, 1 Oct 2026 20:56:14 +0200
Subject: [PATCH] perf(l2): Nodes slides in smoothly, Diagnostics opens in half
 the time

Rows still to build wait while a screen slides in, so its frames aren't
a fill budget apart (Nodes: 12 frames of 24 ms instead of 7 of 33, up to
65). The crash dump in flash is read at boot, not on the first
Diagnostics (build 54 -> 20 ms). The perf tools time Nodes too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 examples/companion_radio/ui-lvgl/UITask.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/examples/companion_radio/ui-lvgl/UITask.cpp b/examples/companion_radio/ui-lvgl/UITask.cpp
index 2ce5b14f..682e98f0 100644
--- a/examples/companion_radio/ui-lvgl/UITask.cpp
+++ b/examples/companion_radio/ui-lvgl/UITask.cpp
@@ -1310,6 +1310,7 @@ void UITask::begin(DisplayDriver* display_drv, SensorManager* sensors, NodePrefs
 
   buildStatusBar();
   applyDisplayPrefs();   // a slider percentage overrides the level main.cpp set
+  { char c[24]; lvport::crashSummary(c, sizeof(c)); }   // the dump in flash read now (~45 ms), not on the first Diagnostics
   showHome();
   if (pinSet()) lockScreen();   // a reboot doesn't get round the PIN
   showSplash();                // over both; fades out by itself
@@ -1756,7 +1757,7 @@ void UITask::loop() {
             if (lv_obj_get_style_layout(o, LV_PART_MAIN) == LV_LAYOUT_FLEX) ++*(uint32_t*)u;
             return LV_OBJ_TREE_WALK_NEXT; }, &nf);
           Serial.printf("PERF   flex containers %lu\n", (unsigned long)nf);
-          if ((!fn && (page == 7 || page == 1)) || fn == &UITask::showContacts) {
+          if ((!fn && (page == 7 || page == 1)) || fn == &UITask::showContacts || fn == &UITask::showNearby) {
             char tag[12]; snprintf(tag, sizeof(tag), "%s%d", fn ? "list" : "page", page);
             fillFlush();   // the whole page, not only its first section
             perfDrawProfile(tag);
@@ -1777,6 +1778,7 @@ void UITask::loop() {
         one("admin", 0, &UITask::showAdminPick);
         one("contacts", 0, &UITask::showContacts);
         one("chats", 0, &UITask::showChats);
+        one("nearby", 0, &UITask::showNearby);
 #ifdef PERF_CONTROLS
         {   // -D PERF_CONTROLS: every control on the settings screens used once (perfControls)
           auto ctls = [this](const char* tag, int page, void (UITask::*fn)()) {
@@ -2501,6 +2503,9 @@ void UITask::fillStep() {
 }
 
 void UITask::fillTick() {
+  // Not while the screen moves in: its frames came a budget apart (Nodes,
+  // 57 rows: 33 ms a frame, up to 65). What it shows first is built already.
+  if (!s_fill_n || (_body && lv_anim_get(_body, NULL)) || lv_display_get_screen_prev(NULL)) return;
   uint32_t t0 = micros();
   while (s_fill_n) {
     fillStep();