Win32_PerfRawData_PerfOS_PagingFile perl sample code

The foundations for Manageability in Windows is Windows Management Instrumentation (WMI; formerly WBEM) and WMI extensions for Windows Driver Model (WDM).

ActiveXperts Network Monitor provides the ability to build monitor check routines based on WMI. ActiveXperts has collected more than a hundred WMI samples. You can use these samples as a base for new check routines you can write yourself. The Win32_PerfRawData_PerfOS_PagingFile WMI class can be used in ActiveXperts Network Monitor to monitor your servers.

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Description

The Win32_PerfFormattedData_PerfOS_PagingFile "cooked" data performance counter class represents calculated counters that monitor the paging file(s) on the computer. The paging file is a reserved space on disk that backs up committed physical memory on the computer. This class is shown as the Paging File object in System Monitor. The WMI source of its data is the high-performance Cooked Counter Provider. This class derives its raw data from the corresponding raw class Win32_PerfRawData_PerfOS_PagingFile. The original data source is the PerfOS performance library. This class was added for Windows XP.

Sample Code

use strict;
use Win32::OLE('in');

use constant wbemFlagReturnImmediately => 0x10;
use constant wbemFlagForwardOnly => 0x20;

my @computers = ("\localhost");
foreach my $computer (@computers) {
   print "\n";
   print "==========================================\n";
   print "Computer: $computer\n";
   print "==========================================\n";

   my $objWMIService = Win32::OLE->GetObject("winmgmts:\\\\$computer\\root\\CIMV2") or die "WMI connection failed.\n";
   my $colItems = $objWMIService->ExecQuery("SELECT * FROM Win32_PerfRawData_PerfOS_PagingFile", "WQL",
                  wbemFlagReturnImmediately | wbemFlagForwardOnly);

   foreach my $objItem (in $colItems) {
      print "Caption: $objItem->{Caption}\n";
      print "Description: $objItem->{Description}\n";
      print "Frequency_Object: $objItem->{Frequency_Object}\n";
      print "Frequency_PerfTime: $objItem->{Frequency_PerfTime}\n";
      print "Frequency_Sys100NS: $objItem->{Frequency_Sys100NS}\n";
      print "Name: $objItem->{Name}\n";
      print "PercentUsage: $objItem->{PercentUsage}\n";
      print "PercentUsage_Base: $objItem->{PercentUsage_Base}\n";
      print "PercentUsagePeak: $objItem->{PercentUsagePeak}\n";
      print "PercentUsagePeak_Base: $objItem->{PercentUsagePeak_Base}\n";
      print "Timestamp_Object: $objItem->{Timestamp_Object}\n";
      print "Timestamp_PerfTime: $objItem->{Timestamp_PerfTime}\n";
      print "Timestamp_Sys100NS: $objItem->{Timestamp_Sys100NS}\n";
      print "\n";
   }
}