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kadanefewi

Need to check for a condition every 5 seconds inside a CPU intensive process. Best way is using timers?

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kadanefewi

Basically I'm doing a very resource intensive file search in disk and every 5 seconds I need to check for a condition (basically a command to stop the search).

$timer = _Timer_Init()
For $i = 0 To $aFilesListSize - 1
    ;;do work here

    If _Timer_Diff($timer) > 5000 Then
        $timer = TimerInit
        CheckIfStopRequested()
    EndIf
Next

I assume checking a timer difference is pretty resource intensive, compared to a simple int value check.

So I thought about doing something like this.

$counter = 0
$timer = _Timer_Init()
For $i = 0 To $aFilesListSize - 1
    ;;do work here

    $counter = $counter + 1
    If $counter > 25 Then
        $counter = 0
        If _Timer_Diff($timer) > 5000 Then
            $timer = TimerInit
            CheckIfStopRequested()
        EndIf
    EndIf
Next

From my benchmarks, 25 iterations of the loops are roughly 1 to 3 seconds.

 

What do you think? Am I over optimizing? It's hard to measure the impact of each version, so any input would be appreciated.

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water

I think the best way would be to use AdlibRegister.

  • Like 2

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kadanefewi

Thanks, that's exactly what I needed!

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water

:)


My UDFs and Tutorials:

Spoiler

UDFs:
Active Directory (NEW 2018-10-19 - Version 1.4.10.0) - Download - General Help & Support - Example Scripts - Wiki
OutlookEX (2018-10-31 - Version 1.3.4.1) - Download - General Help & Support - Example Scripts - Wiki
ExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example Scripts
PowerPoint (2017-06-06 - Version 0.0.5.0) - Download - General Help & Support
Excel - Example Scripts - Wiki
Word - Wiki
 
Tutorials:

ADO - Wiki

 

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BetaLeaf
17 hours ago, water said:

I think the best way would be to use AdlibRegister.

Thanks for this. I learn something new every day. Thanks.


False Positive Reporter - Mass email all anti virus vendors with an attachment of your program for fast and easy whitelisting.

My GitHub Page: https://github.com/BetaLeaf

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