Extract CPU model number only to save display space

- Parse Intel models (i3/i5/i7/i9-XXXX) from full name
- Parse AMD Ryzen models (Ryzen X XXXX) from full name
- Display format: "i7-9700 (8 cores)" instead of full CPU name
- Reduces CPU section width significantly

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -325,7 +325,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.239"
+version = "0.1.240"
 dependencies = [
  "chrono",
  "serde",

agent/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-agent"
-version = "0.1.239"
+version = "0.1.241"
 edition = "2021"
 
 [dependencies]

agent/src/collectors/cpu.rs

@@ -119,6 +119,81 @@ impl CpuCollector {
         utils::parse_u64(content.trim())
     }
 
+    /// Collect static CPU information from /proc/cpuinfo (only once at startup)
+    async fn collect_cpu_info(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
+        let content = utils::read_proc_file("/proc/cpuinfo")?;
+
+        let mut model_name: Option<String> = None;
+        let mut core_count: u32 = 0;
+
+        for line in content.lines() {
+            if line.starts_with("model name") {
+                if let Some(colon_pos) = line.find(':') {
+                    let full_name = line[colon_pos + 1..].trim();
+                    // Extract just the model number (e.g., "i7-9700" from "Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz")
+                    let model = Self::extract_cpu_model(full_name);
+                    if model_name.is_none() {
+                        model_name = Some(model);
+                    }
+                }
+            } else if line.starts_with("processor") {
+                core_count += 1;
+            }
+        }
+
+        agent_data.system.cpu.model_name = model_name;
+        if core_count > 0 {
+            agent_data.system.cpu.core_count = Some(core_count);
+        }
+
+        Ok(())
+    }
+
+    /// Extract CPU model number from full model name
+    /// Examples:
+    /// - "Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz" -> "i7-9700"
+    /// - "AMD Ryzen 9 5950X 16-Core Processor" -> "Ryzen 9 5950X"
+    fn extract_cpu_model(full_name: &str) -> String {
+        // Look for common Intel patterns: i3, i5, i7, i9, Xeon
+        if let Some(pos) = full_name.find("i3-") {
+            if let Some(end) = full_name[pos..].find(' ') {
+                return full_name[pos..pos + end].to_string();
+            }
+        }
+        if let Some(pos) = full_name.find("i5-") {
+            if let Some(end) = full_name[pos..].find(' ') {
+                return full_name[pos..pos + end].to_string();
+            }
+        }
+        if let Some(pos) = full_name.find("i7-") {
+            if let Some(end) = full_name[pos..].find(' ') {
+                return full_name[pos..pos + end].to_string();
+            }
+        }
+        if let Some(pos) = full_name.find("i9-") {
+            if let Some(end) = full_name[pos..].find(' ') {
+                return full_name[pos..pos + end].to_string();
+            }
+        }
+
+        // Look for AMD Ryzen pattern
+        if let Some(pos) = full_name.find("Ryzen") {
+            // Extract "Ryzen X XXXX" pattern
+            let after_ryzen = &full_name[pos..];
+            let parts: Vec<&str> = after_ryzen.split_whitespace().collect();
+            if parts.len() >= 3 {
+                return format!("{} {} {}", parts[0], parts[1], parts[2]);
+            }
+        }
+
+        // Fallback: return first 20 characters or full name if shorter
+        if full_name.len() > 20 {
+            full_name[..20].to_string()
+        } else {
+            full_name.to_string()
+        }
+    }
+
     /// Collect CPU C-state (idle depth) and populate AgentData with top 3 C-states by usage
     async fn collect_cstate(&self, agent_data: &mut AgentData) -> Result<(), CollectorError> {
         // Read C-state usage from first CPU (representative of overall system)
@@ -192,6 +267,11 @@ impl Collector for CpuCollector {
         debug!("Collecting CPU metrics");
         let start = std::time::Instant::now();
 
+        // Collect static CPU info (only once at startup)
+        if agent_data.system.cpu.model_name.is_none() || agent_data.system.cpu.core_count.is_none() {
+            self.collect_cpu_info(agent_data).await?;
+        }
+
         // Collect load averages (always available)
         self.collect_load_averages(agent_data).await?;
 

dashboard/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard"
-version = "0.1.239"
+version = "0.1.241"
 edition = "2021"
 
 [dependencies]

dashboard/src/ui/widgets/system.rs

@@ -27,6 +27,8 @@ pub struct SystemWidget {
     cpu_load_5min: Option<f32>,
     cpu_load_15min: Option<f32>,
     cpu_cstates: Vec<cm_dashboard_shared::CStateInfo>,
+    cpu_model_name: Option<String>,
+    cpu_core_count: Option<u32>,
     cpu_status: Status,
     
     // Memory metrics
@@ -97,6 +99,8 @@ impl SystemWidget {
             cpu_load_5min: None,
             cpu_load_15min: None,
             cpu_cstates: Vec::new(),
+            cpu_model_name: None,
+            cpu_core_count: None,
             cpu_status: Status::Unknown,
             memory_usage_percent: None,
             memory_used_gb: None,
@@ -184,6 +188,8 @@ impl Widget for SystemWidget {
         self.cpu_load_5min = Some(cpu.load_5min);
         self.cpu_load_15min = Some(cpu.load_15min);
         self.cpu_cstates = cpu.cstates.clone();
+        self.cpu_model_name = cpu.model_name.clone();
+        self.cpu_core_count = cpu.core_count;
         self.cpu_status = Status::Ok;
 
         // Extract memory data directly
@@ -830,11 +836,31 @@ impl SystemWidget {
         lines.push(Line::from(cpu_spans));
 
         let cstate_text = self.format_cpu_cstate();
+        let has_cpu_info = self.cpu_model_name.is_some() || self.cpu_core_count.is_some();
+        let cstate_tree = if has_cpu_info { "  ├─ " } else { "  └─ " };
         lines.push(Line::from(vec![
-            Span::styled("  └─ ", Typography::tree()),
+            Span::styled(cstate_tree, Typography::tree()),
             Span::styled(format!("C-state: {}", cstate_text), Typography::secondary())
         ]));
 
+        // CPU model and core count (if available)
+        if let (Some(model), Some(cores)) = (&self.cpu_model_name, self.cpu_core_count) {
+            lines.push(Line::from(vec![
+                Span::styled("  └─ ", Typography::tree()),
+                Span::styled(format!("{} ({} cores)", model, cores), Typography::secondary())
+            ]));
+        } else if let Some(model) = &self.cpu_model_name {
+            lines.push(Line::from(vec![
+                Span::styled("  └─ ", Typography::tree()),
+                Span::styled(model.clone(), Typography::secondary())
+            ]));
+        } else if let Some(cores) = self.cpu_core_count {
+            lines.push(Line::from(vec![
+                Span::styled("  └─ ", Typography::tree()),
+                Span::styled(format!("{} cores", cores), Typography::secondary())
+            ]));
+        }
+
         // RAM section
         lines.push(Line::from(vec![
             Span::styled("RAM:", Typography::widget_title())

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.239"
+version = "0.1.241"
 edition = "2021"
 
 [dependencies]

shared/src/agent_data.rs

@@ -57,6 +57,11 @@ pub struct CpuData {
     pub temperature_celsius: Option<f32>,
     pub load_status: Status,
     pub temperature_status: Status,
+    // Static CPU information (collected once at startup)
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub model_name: Option<String>,
+    #[serde(skip_serializing_if = "Option::is_none")]
+    pub core_count: Option<u32>,
 }
 
 /// Memory monitoring data
@@ -219,6 +224,8 @@ impl AgentData {
                     temperature_celsius: None,
                     load_status: Status::Unknown,
                     temperature_status: Status::Unknown,
+                    model_name: None,
+                    core_count: None,
                 },
                 memory: MemoryData {
                     usage_percent: 0.0,