Hi, I've implemented an example using WMI that gives you the Average CPU usage between samples.

Here is the code: 


#!/usr/bin/perl -w
use strict;
use warnings;

use Win32::OLE;

# Init WMI
my $wmi = Win32::OLE->GetObject("winmgmts://./root/cimv2")
    or die "Failed getobject\n";


# get WMI values
sub get_wmi{
    my $wmi = shift;
    my $list, my $v;
    my @properties = qw(PercentProcessorTime TimeStamp_Sys100NS);
    my $class = 'Win32_PerfRawData_PerfOS_Processor';
    my $key = 'Name';
    $list = $wmi->InstancesOf("$class")
        or die "Failed getobject\n";
    my $hash;
    foreach $v (in $list) {        
        $hash->{$v->{$key}}->{$_}  = $v->{$_} for @properties;
    }
    $hash;
}

# CPU  calculation
my $cpu;
my $hash_prev = get_wmi($wmi);

while(1){
    sleep 2;
    my $hash = get_wmi($wmi);
    $cpu = sprintf("%.2f", 
        (
            1 - (
                    $hash->{'_Total'}->{'PercentProcessorTime'} - $has
+h_prev->{'_Total'}->{'PercentProcessorTime'}
                ) / 
                (
                    $hash->{'_Total'}->{'TimeStamp_Sys100NS'} - $hash_
+prev->{'_Total'}->{'TimeStamp_Sys100NS'}
                ) 
        )* 100 );    
    print "CPU=$cpu\n";    
    $hash_prev = $hash;
}

[download]

Another similar solution in:

http://stackoverflow.com/questions/4750582/get-wmi-cpu-values-using-perl

«A contentious debate is always associated with a lack of valid arguments.»

In reply to Re: Windows 7 CPU usage by gulden
in thread Windows 7 CPU usage by gepebril69

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