shm11C3 · shm11C3 · Mar 8, 2026 · Mar 7, 2026 · Mar 7, 2026 · Mar 7, 2026
diff --git a/src-tauri/src/commands/hardware.rs b/src-tauri/src/commands/hardware.rs
@@ -112,11 +112,10 @@ pub async fn get_gpu_temperature(
 }
 
 ///
-/// ## Get realtime GPU memory usage (best-effort)
-///
-/// This command attempts to retrieve current GPU memory usage information
-/// on a best-effort, platform-dependent basis.
+/// ## Get CPU usage history
 ///
+/// - param state: `tauri::State<AppState>` Application state
+/// - param seconds: `u32` Number of seconds to retrieve
 /// - **Platform support**: Currently implemented only on macOS. On other
 ///   platforms, or where the underlying APIs are not available, this will
 ///   return `Ok(None)` instead of failing.
@@ -143,21 +142,10 @@ pub async fn get_gpu_memory_usage()
 }
 
 ///
-/// ## Get GPU fan speed
-///
-#[command]
-#[specta::specta]
-pub async fn get_nvidia_gpu_cooler() -> Result<Vec<models::hardware::NameValue>, String> {
-  use crate::services::gpu_service;
-
-  gpu_service::fetch_nvidia_gpu_cooler().await
-}
-
-///
-/// ## Get CPU usage history
+/// ## Get realtime GPU memory usage (best-effort)
 ///
-/// - param state: `tauri::State<AppState>` Application state
-/// - param seconds: `u32` Number of seconds to retrieve
+/// This command attempts to retrieve current GPU memory usage information
+/// on a best-effort, platform-dependent basis.
 ///
 #[command]
 #[specta::specta]

diff --git a/src-tauri/src/infrastructure/providers/windows/nvapi_provider.rs b/src-tauri/src/infrastructure/providers/windows/nvapi_provider.rs
@@ -264,6 +264,23 @@ pub fn get_gpu_temperature_from_physical_gpu(gpu: &nvapi::PhysicalGpu) -> i32 {
   0
 }
 
+///
+/// Get GPU cooler level (fan speed %) from `PhysicalGpu`
+///
+pub fn get_gpu_cooler_level_from_physical_gpu(gpu: &nvapi::PhysicalGpu) -> Option<u32> {
+  match gpu.cooler_settings(None) {
+    Ok(coolers) => coolers.first().map(|c| c.current_level.0),
+    Err(e) => {
+      log_debug!(
+        "cooler_settings_failed",
+        "get_gpu_cooler_level",
+        Some(&format!("{e:?}"))
+      );
+      None
+    }
+  }
+}
+
 ///
 /// Get GPU memory usage from `PhysicalGpu`
 ///

diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
@@ -24,7 +24,7 @@ use commands::updater::app_updates;
 use tauri::Manager;
 use tauri::Wry;
 use tauri_plugin_autostart::MacosLauncher;
-use tauri_specta::{Builder, collect_commands};
+use tauri_specta::{Builder, collect_commands, collect_events};
 
 use std::collections::{HashMap, VecDeque};
 use std::sync::{Arc, Mutex};
@@ -61,57 +61,58 @@ pub fn run() {
 
   let migrations = infrastructure::database::migration::get_migrations();
 
-  let builder = Builder::<tauri::Wry>::new().commands(collect_commands![
-    app_updates::fetch_update,
-    app_updates::install_update,
-    hardware::get_process_list,
-    hardware::get_cpu_usage,
-    hardware::get_hardware_info,
-    hardware::get_memory_info_detail,
-    hardware::get_memory_usage,
-    hardware::get_gpu_usage,
-    hardware::get_processors_usage,
-    hardware::get_gpu_temperature,
-    hardware::get_nvidia_gpu_cooler,
-    hardware::get_cpu_usage_history,
-    hardware::get_memory_usage_history,
-    hardware::get_gpu_usage_history,
-    hardware::get_network_info,
-    hardware::get_gpu_memory_usage,
-    settings::commands::get_settings,
-    settings::commands::set_language,
-    settings::commands::set_theme,
-    settings::commands::set_display_targets,
-    settings::commands::set_graph_size,
-    settings::commands::set_line_graph_type,
-    settings::commands::set_line_graph_border,
-    settings::commands::set_line_graph_fill,
-    settings::commands::set_line_graph_color,
-    settings::commands::set_line_graph_mix,
-    settings::commands::set_line_graph_show_legend,
-    settings::commands::set_line_graph_show_scale,
-    settings::commands::set_line_graph_show_tooltip,
-    settings::commands::set_background_img_opacity,
-    settings::commands::set_selected_background_img,
-    settings::commands::set_temperature_unit,
-    settings::commands::set_hardware_archive_enabled,
-    settings::commands::set_hardware_archive_interval,
-    settings::commands::set_hardware_archive_scheduled_data_deletion,
-    settings::commands::set_burn_in_shift,
-    settings::commands::set_burn_in_shift_mode,
-    settings::commands::set_burn_in_shift_preset,
-    settings::commands::set_burn_in_shift_idle_only,
-    settings::commands::set_burn_in_shift_options,
-    settings::commands::read_license_file,
-    settings::commands::read_third_party_notices_file,
-    settings::commands::open_license_file_path,
-    background_image::get_background_image,
-    background_image::get_background_images,
-    background_image::save_background_image,
-    background_image::delete_background_image,
-    ui::set_decoration,
-    system::restart_app,
-  ]);
+  let builder = Builder::<tauri::Wry>::new()
+    .events(collect_events![models::hardware::HardwareMonitorUpdate,])
+    .commands(collect_commands![
+      app_updates::fetch_update,
+      app_updates::install_update,
+      hardware::get_process_list,
+      hardware::get_cpu_usage,
+      hardware::get_hardware_info,
+      hardware::get_memory_info_detail,
+      hardware::get_memory_usage,
+      hardware::get_gpu_usage,
+      hardware::get_processors_usage,
+      hardware::get_gpu_temperature,
+      hardware::get_cpu_usage_history,
+      hardware::get_memory_usage_history,
+      hardware::get_gpu_usage_history,
+      hardware::get_network_info,
+      hardware::get_gpu_memory_usage,
+      settings::commands::get_settings,
+      settings::commands::set_language,
+      settings::commands::set_theme,
+      settings::commands::set_display_targets,
+      settings::commands::set_graph_size,
+      settings::commands::set_line_graph_type,
+      settings::commands::set_line_graph_border,
+      settings::commands::set_line_graph_fill,
+      settings::commands::set_line_graph_color,
+      settings::commands::set_line_graph_mix,
+      settings::commands::set_line_graph_show_legend,
+      settings::commands::set_line_graph_show_scale,
+      settings::commands::set_line_graph_show_tooltip,
+      settings::commands::set_background_img_opacity,
+      settings::commands::set_selected_background_img,
+      settings::commands::set_temperature_unit,
+      settings::commands::set_hardware_archive_enabled,
+      settings::commands::set_hardware_archive_interval,
+      settings::commands::set_hardware_archive_scheduled_data_deletion,
+      settings::commands::set_burn_in_shift,
+      settings::commands::set_burn_in_shift_mode,
+      settings::commands::set_burn_in_shift_preset,
+      settings::commands::set_burn_in_shift_idle_only,
+      settings::commands::set_burn_in_shift_options,
+      settings::commands::read_license_file,
+      settings::commands::read_third_party_notices_file,
+      settings::commands::open_license_file_path,
+      background_image::get_background_image,
+      background_image::get_background_images,
+      background_image::save_background_image,
+      background_image::delete_background_image,
+      ui::set_decoration,
+      system::restart_app,
+    ]);
 
   // TS bindings
   #[cfg(debug_assertions)]
@@ -147,6 +148,7 @@ pub fn run() {
           gpu_temperature_histories: Arc::clone(&gpu_temperature_histories),
           gpu_dedicated_memory_histories: Arc::clone(&gpu_dedicated_memory_histories),
         },
+        app.handle().clone(),
       );
       {
         let ws = app.state::<workers::WorkersState>();

diff --git a/src-tauri/src/models/hardware.rs b/src-tauri/src/models/hardware.rs
@@ -5,6 +5,20 @@ use std::collections::{HashMap, VecDeque};
 use std::sync::{Arc, Mutex};
 use sysinfo;
 
+#[derive(Debug, Clone, serde::Serialize, specta::Type, tauri_specta::Event)]
+#[serde(rename_all = "camelCase")]
+pub struct HardwareMonitorUpdate {
+  pub cpu_usage: f32,
+  pub memory_usage: f32,
+  pub gpu_usage: Option<f32>,
+  pub gpu_name: Option<String>,
+  pub gpu_temperature: Option<f32>,
+  pub gpu_source: Option<String>,
+  pub processors_usage: Vec<f32>,
+  pub gpu_dedicated_memory_usage_kb: Option<f32>,
+  pub gpu_cooler_level: Option<u32>,
+}
+
 pub struct HardwareMonitorState {
   pub system: Arc<Mutex<sysinfo::System>>,
   pub cpu_history: Arc<Mutex<VecDeque<f32>>>,

diff --git a/src-tauri/src/services/archive_service.rs b/src-tauri/src/services/archive_service.rs
@@ -6,6 +6,8 @@ use std::{
 
 const PROCESS_RECORD_LIMIT: usize = 5;
 
+type ProcessHistory = Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>;
+
 #[derive(Debug, Clone, Copy)]
 enum ProcessRankingMetric {
   Cpu,
@@ -32,8 +34,8 @@ struct GpuMetricsCollector<'a> {
 
 /// Process statistics collector and ranker
 struct ProcessStatsCollector<'a> {
-  cpu_histories: &'a Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
-  memory_histories: &'a Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
+  cpu_histories: &'a ProcessHistory,
+  memory_histories: &'a ProcessHistory,
 }
 
 impl ArchiveService {
@@ -302,8 +304,8 @@ impl<'a> GpuMetricsCollector<'a> {
 
 impl<'a> ProcessStatsCollector<'a> {
   fn new(
-    cpu_histories: &'a Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
-    memory_histories: &'a Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
+    cpu_histories: &'a ProcessHistory,
+    memory_histories: &'a ProcessHistory,
   ) -> Self {
     Self {
       cpu_histories,
@@ -459,10 +461,7 @@ mod tests {
     }
   }
 
-  fn dummy_process_collector() -> (
-    Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
-    Arc<Mutex<HashMap<sysinfo::Pid, VecDeque<f32>>>>,
-  ) {
+  fn dummy_process_collector() -> (ProcessHistory, ProcessHistory) {
     (
       Arc::new(Mutex::new(HashMap::new())),
       Arc::new(Mutex::new(HashMap::new())),

diff --git a/src-tauri/src/services/gpu_service.rs b/src-tauri/src/services/gpu_service.rs
@@ -32,14 +32,6 @@ pub async fn fetch_gpu_temperature(
     .map_err(|e| format!("Failed to get GPU temperature: {e:?}"))
 }
 
-///
-/// Get NVIDIA GPU fan speed (not implemented)
-/// Always returns Err as planned for future implementation
-///
-pub async fn fetch_nvidia_gpu_cooler() -> Result<Vec<NameValue>, String> {
-  Err("Failed to get GPU cooler status: This function is not implemented".to_string())
-}
-
 ///
 /// Get realtime GPU memory usage (best-effort).
 ///