a little Powershell Cmdle that makes performance measuring easier.
$script:perfstack = @() | |
$fullperfnames = $false | |
function measure-function([string] $__name, [scriptblock] $__command) { | |
$__result = $null | |
$__cmd = { | |
$__result = Invoke-Command $__command | |
} | |
if ($script:perfstack -eq $null) { | |
$script:perfstack = @() | |
} | |
$__isrecursion = $__name -in $script:perfstack | |
$script:perfstack += "$__name" | |
try { | |
$__r = Measure-Command $__cmd | |
if ($global:perfcounters -eq $null) { | |
$global:perfcounters = @{} | |
} | |
if ($fullperfnames) { | |
$__key = [string]::Join(">",$script:perfstack) | |
} else { | |
$__key = $__name | |
} | |
if ($global:perfcounters.ContainsKey($__key)) { | |
if (!$__isrecursion) { | |
$global:perfcounters[$__key].elapsed += $__r | |
} | |
$global:perfcounters[$__key].count++ | |
} else { | |
$__props = [ordered]@{ name = "$__key"; elapsed = $__r; count = 1 } | |
$global:perfcounters[$__key] = new-object -type "pscustomobject" -property $__props | |
} | |
if ($__result -ne $null) { | |
return $__result | |
} | |
} finally { | |
$script:perfstack = $script:perfstack | select -First ($script:perfstack.Length - 1) | |
} | |
} | |
<# | |
# Usage: | |
# When you want to measure your functon "Get-Something" | |
function Get-Something { | |
# i'm doing some heavy loading here | |
return $something | |
} | |
# Add Measure-Function like this: | |
function Get-Something { | |
Measure-function "$($MyInvocation.MyCommand.Name)" { | |
# i'm doing some heavy loading here | |
return $something | |
} | |
} | |
# then check results in $global:perfcounters hashtable | |
$global:perfcounters | format-table -AutoSize -Wrap | out-string | write-host | |
#> |
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Also, to check the results in powershell > 4.0 you simply do |
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I really liked your function and was using it to improve the performance of my scripts.
However, when using .NET HashSet objects, they are being converted to arrays when this wrapper is around the function.
I solved this by modifying the return like this (which works for all types of
System.Collections.Generic.Hashset