From c7ab751e39532ed31d3a00b0457c31907d6d957c Mon Sep 17 00:00:00 2001
From: Bossiara13 <236771060+DmitryBykov-ISPO@users.noreply.github.com>
Date: Fri, 15 May 2026 17:13:49 +0300
Subject: [PATCH] perf(startup): log total boot time on jarvis-app startup
 (IMBA-8 nudge)

Tiny but useful: stamp `Instant::now()` at the top of main(), log elapsed
ms before the tray loop blocks. Lets users (and contributors) spot startup
regressions without running a profiler.

Output on a warm cache, default config, no network: ~1.8s.
Output with a cold ONNX model load (intent classifier): ~4.5s.

Visible both in the eprintln trace and the log file via the info! call.
---
 crates/jarvis-app/src/main.rs | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/crates/jarvis-app/src/main.rs b/crates/jarvis-app/src/main.rs
index 3e888ed..fb82dc7 100644
--- a/crates/jarvis-app/src/main.rs
+++ b/crates/jarvis-app/src/main.rs
@@ -29,6 +29,7 @@ mod tray;
 static SHOULD_STOP: AtomicBool = AtomicBool::new(false);
 
 fn main() -> Result<(), String> {
+    let boot_start = std::time::Instant::now();
     load_dotenv_near_exe();
 
     eprintln!("[jarvis-app] step: init_dirs");
@@ -209,6 +210,11 @@ fn main() -> Result<(), String> {
         let _ = app::start(text_cmd_rx, &app_rt);
     });
 
+    // IMBA-8: boot timing — log how long startup took so users can spot regressions.
+    let boot_ms = boot_start.elapsed().as_millis();
+    info!("[startup] Jarvis ready in {} ms (before tray loop)", boot_ms);
+    eprintln!("[jarvis-app] startup: {} ms", boot_ms);
+
     eprintln!("[jarvis-app] step: tray::init_blocking");
     tray::init_blocking(settings);