performance monitor in windows

performance_monitor.ps1

param(
    [string]$ReportFile = "$(Join-Path $PSScriptRoot 'report.txt')"
)

Clear-Host
$ErrorActionPreference = "Stop"

try {
    Start-Transcript -Path $ReportFile

    # 检测 NVIDIA SMI 是否可用
    function Get-GpuMetrics {
        if (Get-Command nvidia-smi -ErrorAction SilentlyContinue) {
            $gpuData = & nvidia-smi --query-gpu=name,utilization.gpu,utilization.decoder,memory.total,memory.used --format=csv,noheader,nounits
            $gpuList = @()
            foreach ($line in $gpuData) {
                $parts = $line -split ","
                $gpuList += @{
                    Name = $parts[0].Trim()
                    GPUUtil = [double]$parts[1]
                    DecoderUtil = [double]$parts[2]
                    MemTotal = [double]$parts[3]
                    MemUsed = [double]$parts[4]
                }
            }
            return $gpuList
        } else {
            return @()
        }
    }

    # ========== 系统信息 ==========
    $os = Get-CimInstance Win32_OperatingSystem
    $cpu = Get-CimInstance Win32_Processor
    $board = Get-CimInstance Win32_BaseBoard
    $gpus = Get-CimInstance Win32_VideoController

    $memTotalGB = [math]::Round($os.TotalVisibleMemorySize / 1MB, 2)

    Write-Host "=== 系统信息 ==="
    Write-Host "操作系统: $($os.Caption) $($os.OSArchitecture)"
    Write-Host "版本: $($os.Version)"
    Write-Host "主板: $($board.Manufacturer) $($board.Product)"
    Write-Host "CPU: $($cpu.Name) ($($cpu.NumberOfCores) 核心 / $($cpu.NumberOfLogicalProcessors) 线程 @ $($cpu.MaxClockSpeed) MHz)"
    Write-Host "总内存: $memTotalGB GB"
    # 内存硬件信息
    $memModules = Get-CimInstance Win32_PhysicalMemory
    Write-Host "内存条信息:"
    foreach ($m in $memModules) {
        $capGB = "{0:N2}" -f ($m.Capacity / 1GB)
        Write-Host (" - 槽位 {0} ({1}) | {2} {3} | {4} GB @ {5} MHz" -f `
            $m.BankLabel, $m.DeviceLocator, $m.Manufacturer, $m.PartNumber.Trim(),
            $capGB, $m.Speed)
    }
    Write-Host "GPU(s):"
    Write-Host " - name driver.version memory.used memory.free memory.total"
    foreach ($gpu in $gpus) {
        # Write-Host " - $($gpu.Name) (${($gpu.AdapterRAM/1GB):N2} GB)"
        Write-Host " - $(nvidia-smi --query-gpu=name,driver_version,memory.used,memory.free,memory.total --format=csv,noheader)"
    }
    # 网卡信息
    $excludePatterns = @('VMware', 'Virtual', 'Hyper-V', 'VirtualBox', 'Loopback')
    Write-Host "Network(s):"
    $netAdapters = Get-NetAdapter | Where-Object { $_.Status -eq "Up" } | Sort-Object -Property Name
    foreach ($adapter in $netAdapters) {
        $wmi = Get-CimInstance Win32_NetworkAdapter | Where-Object { $_.NetConnectionID -eq $adapter.Name }
        $pnpId = $wmi.PNPDeviceID
        $desc = $wmi.Description
        $isVirtual = $false
        foreach ($pattern in $excludePatterns) {
            if (($pnpId -and $pnpId -like "*$pattern*") -or ($desc -and $desc -like "*$pattern*")) {
                $isVirtual = $true
                break
            }
        }    
        if ($isVirtual) { continue }  # 跳过虚拟网卡
        $model = if ($wmi) { $wmi.Name } else { "未知型号" }
        Write-Host (" - {0} | MAC: {1} | 速度: {2} Gbps | 状态: {3} | 型号: {4}" -f `
            $adapter.Name, $adapter.MacAddress, $adapter.LinkSpeed, $adapter.Status, $model)
    }
    Write-Host ""

    # 初始快照
    $cpuSnap = (Get-Counter "\Processor(_Total)\% Processor Time").CounterSamples.CookedValue
    $memFreeGB = [math]::Round($os.FreePhysicalMemory / 1MB, 2)
    $memUsedSnapGB = $memTotalGB - $memFreeGB
    $gpuSnap = Get-GpuMetrics

    Write-Host "=== 初始快照 ==="
    Write-Host ("CPU 使用率: {0:N2}%" -f $cpuSnap)
    Write-Host ("内存占用: {0:N2} GB" -f $memUsedSnapGB)
    Write-Host ("GPU 占用: {0:N2}%" -f ($gpuSnap | Measure-Object -Property GPUUtil -Average).Average)
    Write-Host ("视频引擎占用: {0:N2}%" -f ($gpuSnap | Measure-Object -Property DecoderUtil -Average).Average)
    Write-Host ("显存占用: {0:N2} MB" -f ($gpuSnap | Measure-Object -Property MemUsed -Sum).Sum)
    Write-Host ""

    Write-Host "开始性能监控... 按 q + 回车 停止。"
    Write-Host ""

    # 统计数据
    $cpuList = @()
    $memList = @()
    $diskReadList = @()
    $diskWriteList = @()
    $netRecvList = @()
    $netSendList = @()
    $gpuUtilList = @()
    $gpuMemList = @()
    $decoderUtilList = @()

    $startTime = Get-Date

    # 监控循环
    while ($true) {
        if ([console]::KeyAvailable) {
            $key = [console]::ReadKey($true).KeyChar
            if ($key -eq 'q') { break }
        }

        # 需要监控的计数器列表
        $counters = @(
            '\Processor(_Total)\% Processor Time',
            '\PhysicalDisk(_Total)\Disk Read Bytes/sec',
            '\PhysicalDisk(_Total)\Disk Write Bytes/sec',
            '\Network Interface(*)\Bytes Received/sec',
            '\Network Interface(*)\Bytes Sent/sec'
        )

        # 一次采样，采样间隔1秒，采样1次
        $results = Get-Counter -Counter $counters -SampleInterval 1 -MaxSamples 1

        # CPU 使用率
        $cpuUsage = ($results.CounterSamples | Where-Object { $_.Path -like '*Processor(_Total)*' }).CookedValue

        # 磁盘读取 (MB/s)
        $diskRead = ($results.CounterSamples | Where-Object { $_.Path -like '*PhysicalDisk(_Total)\\Disk Read Bytes/sec*' }).CookedValue / 1MB

        # 磁盘写入 (MB/s)
        $diskWrite = ($results.CounterSamples | Where-Object { $_.Path -like '*PhysicalDisk(_Total)\\Disk Write Bytes/sec*' }).CookedValue / 1MB

        # 网络接收 (KB/s) 多网卡求和
        $netRecv = ($results.CounterSamples | Where-Object { $_.Path -like '*Network Interface(*)\\Bytes Received/sec*' } | Measure-Object -Property CookedValue -Sum).Sum / 1KB

        # 网络发送 (KB/s) 多网卡求和
        $netSend = ($results.CounterSamples | Where-Object { $_.Path -like '*Network Interface(*)\\Bytes Sent/sec*' } | Measure-Object -Property CookedValue -Sum).Sum / 1KB

        # 内存信息（调用不变）
        $memFreeGB = [math]::Round((Get-CimInstance Win32_OperatingSystem).FreePhysicalMemory / 1MB, 2)
        $memUsedGB = $memTotalGB - $memFreeGB

        # GPU 信息（保持不变）
        $gpuData = Get-GpuMetrics
        $gpuUtil = if ($gpuData.Count -gt 0) { ($gpuData | Measure-Object -Property GPUUtil -Average).Average } else { 0 }
        $decoderUtil = if ($gpuData.Count -gt 0) { ($gpuData | Measure-Object -Property DecoderUtil -Average).Average } else { 0 }
        $gpuMemUsed = if ($gpuData.Count -gt 0) { ($gpuData | Measure-Object -Property MemUsed -Sum).Sum } else { 0 }


        # 存储数据
        $cpuList += $cpuUsage
        $memList += $memUsedGB
        $diskReadList += $diskRead
        $diskWriteList += $diskWrite
        $netRecvList += $netRecv
        $netSendList += $netSend
        $gpuUtilList += $gpuUtil
        $gpuMemList += $gpuMemUsed
        $decoderUtilList += $decoderUtil

        # 实时输出
        Write-Host ("[{0:HH:mm:ss}] | CPU: {1,6:N2}% | 内存: {2,6:N2} GB | 磁盘R/W: {3,6:N2}/{4,6:N2} MB/s | 网络R/W: {5,6:N2}/{6,6:N2} KB/s | GPU: {7,6:N2}% | 视频引擎: {8,6:N2}% | 显存: {9,6:N2} MB" -f `
    (Get-Date), $cpuUsage, $memUsedGB, $diskRead, $diskWrite, $netRecv, $netSend, $gpuUtil, $decoderUtil, $gpuMemUsed)

        # Start-Sleep -Seconds 1
    }

    # 退出统计
    $endTime = Get-Date
    $duration = $endTime - $startTime

    # 监控结果
    Write-Host "=== 监控统计结果 ==="
    Write-Host "运行时长: $duration"

    function Output-Stat($name, $unit, $list) {
        if ($list.Count -gt 0) {
            Write-Host ("{0} 平均: {1:N2} {4} | 最大: {2:N2} {4} | 最小: {3:N2} {4}" -f `
                $name, `
                ($list | Measure-Object -Average).Average, `
                ($list | Measure-Object -Maximum).Maximum, `
                ($list | Measure-Object -Minimum).Minimum, `
                $unit)
        }
    }

    Output-Stat "CPU 使用率" "%" $cpuList
    Output-Stat "内存占用" "GB" $memList
    Output-Stat "磁盘读取" "MB/s" $diskReadList
    Output-Stat "磁盘写入" "MB/s" $diskWriteList
    Output-Stat "网络接收" "KB/s" $netRecvList
    Output-Stat "网络发送" "KB/s" $netSendList
    Output-Stat "GPU 利用率" "%" $gpuUtilList
    Output-Stat "视频引擎利用率" "%" $decoderUtilList
    Output-Stat "GPU 显存占用" "MB" $gpuMemList
}
finally{
    Stop-Transcript
}