CPU Package

import "github.com/shirou/gopsutil/v4/cpu"

type TimesStat struct {
    CPU       string  // CPU identifier (e.g., "cpu0", "cpu1", or "cpu-total")
    User      float64 // Time spent in user mode
    System    float64 // Time spent in system mode
    Idle      float64 // Time spent idle
    Nice      float64 // Time spent in user mode with low priority
    Iowait    float64 // Time spent waiting for I/O to complete
    Irq       float64 // Time spent servicing hardware interrupts
    Softirq   float64 // Time spent servicing software interrupts
    Steal     float64 // Time stolen by virtualization
    Guest     float64 // Time spent running a virtual CPU for guest OS
    GuestNice float64 // Time spent running a niced guest
}

type InfoStat struct {
    CPU        int32    // CPU number
    VendorID   string   // CPU vendor ID (e.g., "GenuineIntel", "AuthenticAMD")
    Family     string   // CPU family
    Model      string   // CPU model
    Stepping   int32    // CPU stepping
    PhysicalID string   // Physical processor ID
    CoreID     string   // Core ID
    Cores      int32    // Number of cores
    ModelName  string   // Human-readable model name
    Mhz        float64  // CPU frequency in MHz
    CacheSize  int32    // Cache size in KB
    Flags      []string // CPU feature flags
    Microcode  string   // Microcode version
}

package main

import (
    "fmt"
    "time"
    "github.com/shirou/gopsutil/v4/cpu"
)

func main() {
    // Get number of CPU cores
    logical, _ := cpu.Counts(true)
    physical, _ := cpu.Counts(false)
    fmt.Printf("Logical CPUs: %d, Physical CPUs: %d\n", logical, physical)
    
    // Get CPU information
    info, _ := cpu.Info()
    if len(info) > 0 {
        fmt.Printf("CPU: %s\n", info[0].ModelName)
        fmt.Printf("Frequency: %.2f MHz\n", info[0].Mhz)
    }
    
    // Get CPU usage percentage
    percent, _ := cpu.Percent(time.Second, false)
    fmt.Printf("CPU Usage: %.2f%%\n", percent[0])
    
    // Get per-CPU usage
    perCPU, _ := cpu.Percent(time.Second, true)
    for i, p := range perCPU {
        fmt.Printf("CPU%d Usage: %.2f%%\n", i, p)
    }
}