С тех пор, как я слушал Клинта Хаффмана , который написал PAL утилиту для анализа журналов Perfmon, однажды на подкасте. Я настроил то, что я называю Flight Recorder, на всех наших производственных серверах приложений. Эта практика очень пригодилась для диагностики проблем и отслеживания тенденций.
Ниже приведен скрипт, который я использую для настройки автозапускаемого Perfmon Collector с очисткой журнала. При желании его можно передать в файл со списком счетчиков производительности для сбора (по одному на строку) или в файл PAL Threshold XML. Мне нравится использовать файлы PAL Threshold.
<#
Install-FlightRecorder.ps1
.SYNOPSIS
Installs or sets up the pieces necessary to create PerfMon Collector
snapshots, one a minute, to a file located in C:\FlightRecorder.
.DESCRIPTION
Installs or sets up the pieces necessary to create PerfMon Collector
snapshots, one a minute, to a file located in C:\FlightRecorder.
.PARAMETER Path
File listing performance counters to collect, one per line.
Or a PAL Threshold XML file.
#>
[CmdletBinding()]
param (
[string]$Path
)
#Requires -RunAsAdministrator
$ScriptDir = { Split-Path $MyInvocation.ScriptName –Parent }
$DeleteTempFile = $False
function Main {
if (-not $Path) { $Path = DefaultFile $Path }
if (-not (Test-Path $Path)) {
Write-Warning "Path does not exist or is inaccessable: $Path"
Exit 1
}
if ($Path -like '*.xml') { $Path = PALFile $Path }
Install-FlightRecorder
if ($Path.startswith($env:TEMP)) {Remove-Item $Path}
Write-Verbose 'Installation Successful.'
}
function Install-FlightRecorder {
Write-Verbose 'Setting up the Flight Recorder.'
if (-not (Test-Path c:\FlightRecorder\)) {
mkdir c:\FlightRecorder | out-null
}
if ((LOGMAN query) -match 'FlightRecorder') {
Write-Verbose 'Removing former FlightRecorder PerfMon Collector.'
LOGMAN stop FlightRecorder | out-null
LOGMAN delete FlightRecorder | Write-Verbose
}
Write-Verbose 'Creating FlightRecorder PerfMon Collector.'
LOGMAN create counter FlightRecorder -o "C:\FlightRecorder\FlightRecorder_$env:computername" -cf $Path -v mmddhhmm -si 00:01:00 -f bin | Write-Verbose
SCHTASKS /Create /TN FlightRecorder-Nightly /F /SC DAILY /ST 00:00 /RU SYSTEM /TR 'powershell.exe -command LOGMAN stop FlightRecorder; LOGMAN start FlightRecorder; dir c:\FlightRecorder\*.blg |?{ $_.LastWriteTime -lt (Get-Date).AddDays(-3)} | del' | Write-Verbose
SCHTASKS /Create /TN FlightRecorder-Startup /F /SC ONSTART /RU SYSTEM /TR "LOGMAN start FlightRecorder" | Write-Verbose
SCHTASKS /Run /TN FlightRecorder-Startup | Write-Verbose
}
function DefaultFile {
Write-Warning 'Counter or PAL file not specified, using default configuration.'
$DeleteTempFile = $True
$Path = [System.IO.Path]::GetTempFileName()
Set-Content -Encoding ASCII $Path @'
\LogicalDisk(*)\Avg. Disk sec/Read
\LogicalDisk(*)\Avg. Disk sec/Write
\LogicalDisk(*)\Disk Transfers/sec
\LogicalDisk(C:)\Free Megabytes
\Memory\% Committed Bytes In Use
\Memory\Available MBytes
\Memory\Committed Bytes
\Memory\Free System Page Table Entries
\Memory\Pages Input/sec
\Memory\Pages/sec
\Memory\Pool Nonpaged Bytes
\Memory\Pool Paged Bytes
\Memory\System Cache Resident Bytes
\Network Interface(*)\Bytes Total/sec
\Network Interface(*)\Output Queue Length
\Paging File(*)\% Usage
\Paging File(*)\% Usage Peak
\PhysicalDisk(*)\Avg. Disk sec/Read
\PhysicalDisk(*)\Avg. Disk sec/Write
\Process(_Total)\Handle Count
\Process(_Total)\Private Bytes
\Process(_Total)\Thread Count
\Process(_Total)\Working Set
\Processor(*)\% Interrupt Time
\Processor(*)\% Privileged Time
\Processor(*)\% Processor Time
\System\Context Switches/sec
\System\Processor Queue Length
'@
$Path
}
function PalFile {
$DeleteTempFile = $True
$InputPath = $Path
$Path = [System.IO.Path]::GetTempFileName()
$filesRead = @()
Read-PalFile $InputPath | Select -Unique | sort | Set-Content -Encoding ASCII $Path
$Path
}
$script:filesRead =@()
function Read-PalFile ([string]$path) {
if (-not (Test-Path $path)) {
Write-Warning "PAL Threshold file not found: $path"
return
}
if ($script:filesRead -contains $path) {return}
$script:filesRead += @($path)
Write-Verbose "Reading PAL Threshold file: $path"
$xml = [XML](Get-Content $path)
$xml.SelectNodes('//DATASOURCE[@TYPE="CounterLog"]') | select -expand EXPRESSIONPATH
$xml.SelectNodes('//INHERITANCE/@FILEPATH') | select -expand '#text' | where {$_ } | ForEach {
$newpath = Join-Path (Split-Path -parent $path) $_
Write-Debug "Inheritance file: $newpath"
Read-PalFile $newpath
}
}
. Main