파워쉘 - Disk 성능 측정

ps-perf-disk.ps1

# Win32_PerfRawData_PerfDisk_LogicalDisk member list
# $disk = Get-WmiObject -class Win32_PerfRawData_PerfDisk_LogicalDisk -filter "name='_total'"
# $disk | Get-Member

$numRep=20
$Sleep=2

for ($i=1; $i -le $numRep; $i++)
{
    $Disk = Get-WmiObject -class Win32_PerfRawData_PerfDisk_LogicalDisk -filter "name= 'G:' "
    [Double]$T1 = $Disk.TimeStamp_Sys100NS
    [Double]$Idle1 = $Disk.PercentIdleTime
    [Double]$DiskTime1 = $Disk.PercentDiskTime
    [Double]$DiskTimeRead1 = $Disk.PercentDiskReadTime
    [Double]$DiskTimeWrite1 = $Disk.PercentDiskWriteTime

    [Double]$DiskSecPerTransfer1 = $Disk.AvgDisksecPerTransfer
    [Double]$DiskSecPerRead1 = $Disk.AvgDisksecPerRead
    [Double]$DiskSecPerWrite1 = $Disk.AvgDisksecPerWrite
    

    start-Sleep $Sleep

    $Disk = Get-WmiObject -class Win32_PerfRawData_PerfDisk_LogicalDisk -filter "name= 'G:' "
    [Double]$T2 = $Disk.TimeStamp_Sys100NS
    [Double]$Idle2 = $Disk.PercentIdleTime
    [Double]$DiskTime2 = $Disk.PercentDiskTime
    [Double]$DiskTimeRead2 = $Disk.PercentDiskReadTime
    [Double]$DiskTimeWrite2 = $Disk.PercentDiskWriteTime

    [Double]$DiskSecPerTransfer2 = $Disk.AvgDisksecPerTransfer
    [Double]$DiskSecPerRead2 = $Disk.AvgDisksecPerRead
    [Double]$DiskSecPerWrite2 = $Disk.AvgDisksecPerWrite    
    
    $DiffTime = $T2 - $T1

    "$i"

    $PercentIdleTime =(($Idle2 - $Idle1) / $DiffTime) * 100
    $PercentDiskTime =(($DiskTime2 - $DiskTime1) / $DiffTime) * 100
    $PercentDiskTimeRead =(($DiskTimeRead2 - $DiskTimeRead1) / $DiffTime) * 100
    $PercentDiskTimeWrite =(($DiskTimeWrite2 - $DiskTimeWrite1) / $DiffTime) * 100

    $DiskSecTransfer =($DiskSecPerTransfer2 - $DiskSecPerTransfer1) / $DiffTime
    $DiskSecRead =($DiskSecPerRead2 - $DiskSecPerRead1) / $DiffTime
    $DiskSecWrite =($DiskSecPerWrite2 - $DiskSecPerWrite1) / $DiffTime

    "`t Idle Time = " + "{0:n2}" -f $PercentIdleTime
    "`t Disk Time = " + "{0:n2}" -f $PercentDiskTime
    "`t Disk Time Read = " + "{0:n2}" -f $PercentDiskTimeRead
    "`t Disk Time Write = " + "{0:n2}" -f $PercentDiskTimeWrite
    "`t AvgDisksecPerTransfer = " + "{0:n2}" -f $DiskSecTransfer
    "`t AvgDisksecPerRead = " + "{0:n2}" -f $DiskSecRead
    "`t AvgDisksecPerWrite = " + "{0:n2}" -f $DiskSecWrite
}