From ff2f305d9ec025f369492374f9786e8c03602fc2 Mon Sep 17 00:00:00 2001
From: NotAShelf <raf@notashelf.dev>
Date: Sat, 17 May 2025 04:40:30 +0300
Subject: [PATCH] daemon: optimize CPU usage averaging in `SystemHistory`
 updates

---
 src/daemon.rs | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/src/daemon.rs b/src/daemon.rs
index df310d9..3308a50 100644
--- a/src/daemon.rs
+++ b/src/daemon.rs
@@ -163,20 +163,18 @@ impl SystemHistory {
     fn update(&mut self, report: &SystemReport) {
         // Update CPU usage history
         if !report.cpu_cores.is_empty() {
-            // Get average CPU usage across all cores
-            let total: f32 = report
-                .cpu_cores
-                .iter()
-                .filter_map(|core| core.usage_percent)
-                .sum();
-            let count = report
-                .cpu_cores
-                .iter()
-                .filter(|c| c.usage_percent.is_some())
-                .count();
+            let mut total_usage: f32 = 0.0;
+            let mut core_count: usize = 0;
 
-            if count > 0 {
-                let avg_usage = total / count as f32;
+            for core in &report.cpu_cores {
+                if let Some(usage) = core.usage_percent {
+                    total_usage += usage;
+                    core_count += 1;
+                }
+            }
+
+            if core_count > 0 {
+                let avg_usage = total_usage / core_count as f32;
 
                 // Keep only the last 5 measurements
                 if self.cpu_usage_history.len() >= 5 {