Very quick "Benchmark" with Power Shell

Knowledge Base

Time to time I need “quick and dirty” benchmark to check performance. Sometimes using CPU Bench from CPU-Z or AIDA, but there is quicker way with Power Shell…

The script is the following:

Measure-Command {
        $array = New-Object System.Collections.ArrayList
        for ($i = 0; $i -lt 5000000; $i++) {
          [void]$array.Add($i)
        }
        $array.Sort()
      }

And the output is

Days              : 0
Hours             : 0
Minutes           : 0
Seconds           : 8
Milliseconds      : 576
Ticks             : 85764768
TotalDays         : 9,92647777777778E-05
TotalHours        : 0,00238235466666667
TotalMinutes      : 0,14294128
TotalSeconds      : 8,5764768
TotalMilliseconds : 8576,4768

Originally from Vmware 17 Pro very slow on Windows 11 22H2.

But be careful - different versions of PS may give different performance