Using WIndows PowerShell 1.0 or 2.0 to evaluate performance of executable files.
- by Andry
Hello!
I am writing a simple script on Windows PowerShell in order to evaluate performance of executable files.
The important hypothesisi is the following: I have an executable file, it can be an application written in any possible language (.net and not, Viual-Prolog, C++, C, everything that can be compiled as an .exe file). I want to profile it getting execution times.
I did this:
Function Time-It {
Param ([string]$ProgramPath, [string]$Arguments)
$Watch = New-Object System.Diagnostics.Stopwatch
$NsecPerTick = (1000 * 1000 * 1000) / [System.Diagnostics.Stopwatch]::Frequency
Write-Output "Stopwatch created! NSecPerTick = $NsecPerTick"
$Watch.Start() # Starts the timer
[System.Diagnostics.Process]::Start($ProgramPath, $Arguments)
$Watch.Stop() # Stops the timer
# Collectiong timings
$Ticks = $Watch.ElapsedTicks
$NSecs = $Watch.ElapsedTicks * $NsecPerTick
Write-Output "Program executed: time is: $Nsecs ns ($Ticks ticks)"
}
This function uses stopwatch.
Well, the functoin accepts a program path, the stopwatch is started, the program run and the stopwatch then stopped. Problem: the System.Diagnostics.Process.Start is asynchronous and the next instruction (watch stopped) is not executed when the application finishes. A new process is created...
I need to stop the timer once the program ends.
I thought about the Process class, thicking it held some info regarding the execution times... not lucky...
How to solve this?
