Monitor NTFS File Cache Performance

Monitor NTFS File Cache Performance

Description
Uses cooked performance counters to monitor the performance of the NTFS file cache.

Supported Platforms

Windows Server 2003	Yes
Windows XP	Yes
Windows 2000	No
Windows NT 4.0	No
Windows 98	No

Script Code

strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
    & "{impersonationLevel=impersonate}!\\" & strComputer & "\root\cimv2")

set objRefresher = CreateObject("WbemScripting.SWbemRefresher")
Set colCache = objRefresher.AddEnum _
    (objWMIService, "win32_PerfFormattedData_PerfOS_Cache").ObjectSet
objRefresher.Refresh

For i = 1 to 100
    For Each objCache in colCache
        Wscript.Echo "Async Copy Reads Per Second" & _
            objCache.AsyncCopyReadsPerSec
        Wscript.Echo "Async Data Maps Per Second" & _
            objCache.AsyncDataMapsPerSec
        Wscript.Echo "AsyncFastReadsPerSecond" & _
            objCache.AsyncFastReadsPerSec
        Wscript.Echo "Async MDL Reads Per Second" & _
            objCache.AsyncMDLReadsPerSec
        Wscript.Echo "Async Pin Reads Per Second" & _
            objCache.AsyncPinReadsPerSec
        Wscript.Echo "Caption" & vbTab & objCache.Caption
        Wscript.Echo "Copy Read Hits Percent " & _
            objCache.CopyReadHitsPercent
        Wscript.Echo "Copy Reads Per Second" & _
            objCache.CopyReadsPerSec
        Wscript.Echo "Data Flushes Per Second" & _
            objCache.DataFlushesPerSec
        Wscript.Echo "Data Flush Pages Per Second" & _
            objCache.DataFlushPagesPerSec
        Wscript.Echo "Data Map Hits Percent " & _
            objCache.DataMapHitsPercent
        Wscript.Echo "Data Map Pins Per Second" & _
            objCache.DataMapPinsPerSec
        Wscript.Echo "Data Maps Per Second" & _
            objCache.DataMapsPerSec
        Wscript.Echo "Description" & objCache.Description
        Wscript.Echo "Fast Read Not Possibles Per Second" & _
            objCache.FastReadNotPossiblesPerSec
        Wscript.Echo "Fast Read Resource Misses Per Second" & _
            objCache.FastReadResourceMissesPerSec
        Wscript.Echo "Fast Reads Per Second" & _
            objCache.FastReadsPerSec
        Wscript.Echo "Lazy Write Flushes Per Second" & _
            objCache.LazyWriteFlushesPerSec
        Wscript.Echo "Lazy Write Pages Per Second" & _
            objCache.LazyWritePagesPerSec
        Wscript.Echo "MDL Read Hits Percent " & _
            objCache.MDLReadHitsPercent
        Wscript.Echo "MDL Reads Per Second" & _
            objCache.MDLReadsPerSec
        Wscript.Echo "Name" & vbTab & objCache.Name
        Wscript.Echo "Pin Read Hits Percent" & _
            objCache.PinReadHitsPercent
        Wscript.Echo "Pin Reads Per Second" & _
            objCache.PinReadsPerSec
        Wscript.Echo "Read Aheads Per Second" & _
            objCache.ReadAheadsPerSec
        Wscript.Echo "Sync Copy Reads Per Second" & _
            objCache.SyncCopyReadsPerSec
        Wscript.Echo "Sync Data Maps Per Second" & _
            objCache.SyncDataMapsPerSec
        Wscript.Echo "Sync Fast Reads Per Second" & _
            objCache.SyncFastReadsPerSec
        Wscript.Echo "Sync MDL Reads Per Second" & _
            objCache.SyncMDLReadsPerSec
        Wscript.Echo "Sync Pin Reads Per Second" & _
            objCache.SyncPinReadsPerSec
        Wscript.Sleep 2000
        objRefresher.Refresh
    Next
Next

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Disclaimer

This sample script is not supported under any Microsoft standard support program or service. The sample script is provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or delivery of the scripts be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.