cpu: add usage percent

src/core.rs

@@ -6,7 +6,6 @@ pub struct SystemInfo {
 pub struct CpuCoreInfo {
     // Per-core data
     pub core_id: u32,
-    pub usage_percent: Option<f32>,
     pub temperature_celsius: Option<f32>,
 }
 

src/cpu.rs

@@ -49,6 +49,10 @@ impl Cpu {
     pub fn time_idle(&self) -> u64 {
         self.time_idle + self.time_iowait
     }
+
+    pub fn usage(&self) -> f64 {
+        1.0 - self.time_idle() as f64 / self.time_total() as f64
+    }
 }
 
 impl fmt::Display for Cpu {

src/monitor.rs

@@ -111,28 +111,8 @@ pub fn get_cpu_core_info(
         }
     }
 
-    let usage_percent: Option<f32> = {
-        let prev_idle = prev_times.idle_time();
-        let current_idle = current_times.idle_time();
-
-        let prev_total = prev_times.total_time();
-        let current_total = current_times.total_time();
-
-        let total_diff = current_total.saturating_sub(prev_total);
-        let idle_diff = current_idle.saturating_sub(prev_idle);
-
-        // Avoid division by zero if no time has passed or counters haven't changed
-        if total_diff == 0 {
-            None
-        } else {
-            let usage = 100.0 * (1.0 - (idle_diff as f32 / total_diff as f32));
-            Some(usage.clamp(0.0, 100.0)) // clamp between 0 and 100
-        }
-    };
-
     Ok(CpuCoreInfo {
         core_id,
-        usage_percent,
         temperature_celsius,
     })
 }