PowerShell 读取性能计数器二进制文件（.blg）记录并汇总计算

由于监控及报告需要，要统计性能计数器每天数值情况，确认数据库服务器的运行状况。若打开计数器填写，比较麻烦，现在统计用 powershell 来读取计数器的值。

第一阶段：Powershell 读取计数器文件并统计其中一个计数器的值

$startDate = (Get-Date).AddDays(-1).Date $endDate = (Get-Date).Date $perfPath = "D:/DataFiles/PERFMON/MSSQL_PERFMON_08240904.blg"  #读取文件中的计数器名称 $counterList = Import-Counter -Path $perfPath $countersNameList = $counterList[0].countersamples | % {$_.path}  #筛选指定计数器和时间重新导入PS $counter = $countersNameList -like '*Processor Time*' $counterData = Import-Counter -Path $perfPath -Counter $counter | Where-Object -FilterScript {($_.Timestamp -ge $startDate) -and ($_.Timestamp -lt $endDate)}   #计算日期范围内的数值统计 $counterInfo = $counterData | Foreach-Object {$_.CounterSamples} | Measure-Object -property CookedValue -Average -Maximum  #哈希表存储结果数据 $resultTable=@{} $resultTable."CPU 利用率——平均" = $counterInfo.Average $resultTable."CPU 利用率——最大" = $counterInfo.Maximum  $resultTable 

第二阶段：批量统计文件中的所有计数器并导出到文件中

$startDate = (Get-Date).AddDays(-1).Date  $endDate = (Get-Date).Date  $perfPath = "D:/360Downloads/*.blg"  #哈希表存储结果数据  $resultTable=@{}  #导入指定时间的所有计数器信息 $counterData = Import-Counter -Path $perfPath | Where-Object -FilterScript {($_.Timestamp -ge $startDate) -and ($_.Timestamp -lt $endDate)}  #所有的计数器名字 $countersNameList = $counterData[0].countersamples | % {$_.Path}  #遍历每个计数器，将计算结果存储到哈希表中 foreach($counterName in $countersNameList)  {  #$counterName = "//hzc/system/threads" $counterDataOne = $counterData | Foreach-Object {$_.CounterSamples} | Where {$_.Path -like $counterName}  $counterInfo = $counterDataOne | Measure-Object CookedValue -Average -Minimum -Maximum $resultTable.$($counterName+" ：平均值") = $counterInfo.Average $resultTable.$($counterName+" ：最小值") = $counterInfo.Minimum $resultTable.$($counterName+" ：最大值") = $counterInfo.Maximum }  #$resultTable.GetEnumerator() | sort Name | Format-Table -Auto #几种方法导出到文件 $resultTable.GetEnumerator() | sort Name | Format-Table -Auto | Out-File "D:/360Downloads/PerfmonCounter.txt" $resultTable.GetEnumerator() | sort Name | Export-Csv -Path "D:/360Downloads/PerfmonCounter.txt" -Encoding "unicode" -Force $resultTable.GetEnumerator() | sort Name | Format-List | Export-Csv -Path "D:/360Downloads/PerfmonCounter.xlsx" -Encoding "unicode" -Force