Eats up CPU (creating many GUIs)

Xenobiologist · March 22, 2008

Hi,

why does this example eat up CPU before 300 GUIs?

#include<GUIConstantsEx.au3>
#include<WindowsConstants.au3>
#include<WinAPI.au3>
HotKeySet('{F1}', '_end')
Global $i = 0

While 1
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            ExitLoop
        Case Else
    EndSwitch
    Sleep(50)
;~     _setPixel(_WinAPI_GetMousePosX(), _WinAPI_GetMousePosY())
    _setPixel(2*$i, 2*$i)
    ToolTip('GUIs: ' & $i, 0, 0)
WEnd

Func _setPixel($left, $top, $width = 5, $height = 5, $color = 0x00FF00)
    GUICreate("", $width, $height, $left, $top, $WS_POPUP, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST))
    GUISetBkColor($color)
    GUISetState(@SW_SHOW)
    $i += 1
    Return 1
EndFunc   ;==>_setPixel

Func _end()
    Exit (0)
EndFunc   ;==>_end

Mega

Swift · March 22, 2008

Clearing the tooltip doesn't work either.

Xenobiologist · March 23, 2008

Did you post a suggestion or do have to read between the lines to get the solution?

Swift · March 23, 2008

The other guy posted something...like: "It's the GUI doing it...?"

Well, my only suggestion is to find that function called: ReduceCPU and use Adlibenable() to keep it going, that might lower the CPU usage...Cool scirpt though

NELyon · March 23, 2008

With this For loop, it doesn't seem to peter out until around 500. Xeno's posted code stopped at 170-ish, but it barely used any ram.

#include<GUIConstantsEx.au3>
#include<WindowsConstants.au3>
#include<WinAPI.au3>
HotKeySet('{F1}', '_end')


For $i = 1 to 1000 
    _setPixel($i, $i)
    ToolTip('GUIs: ' & $i, 0, 0)
Next

Func _setPixel($left, $top, $width = 5, $height = 5, $color = 0x00FF00)
    GUICreate("", $width, $height, $left, $top, $WS_POPUP, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST))
    GUISetBkColor($color)
    GUISetState(@SW_SHOW)
    $i += 1
    Return 1
EndFunc   ;==>_setPixel

Func _end()
    Exit (0)
EndFunc   ;==>_end

FreeFry · March 24, 2008

Xenobiologist code didn't stop working or anything for me, it went above 500 GUI's before it started to show any real cpu usage, still only around ~30% though. But when I removed the Sleep(50), it went to ~750 GUI's fairly quickly, but then came to a crawl.. like 5 gui's per second... and cpu usage around 50-70%

Your code Senton-Bomb is faster, but that's only because you're doing the same as Step 2 would do in a For loop(notice you still have $i += 1 in the _setPixel function).

doh.

Funny thing is that when I run this code, I hear a buzz in my subwoofers.

Edited March 24, 2008 by FreeFry

Xenobiologist · March 24, 2008

Hi,

tahnks for testing guys. But is there an explanation why the script eats up CPU at a special point?

I thought it should run until 1024 GUI controls are created.

Bug or am I'm doing something wrong?

Mega

FreeFry · March 24, 2008

Your script runs fine for me, it just comes to a crawl after some time, and uses a really high amount of cpu power...

And I don't know, maybe it's kinda self explanatory that it starts lagging with such a huge amount of GUI's...

Swift · March 24, 2008

Try creating 500 GUI's, that show etc, and see what happens...

Xenobiologist · March 24, 2008

Your script runs fine for me, it just comes to a crawl after some time, and uses a really high amount of cpu power...
And I don't know, maybe it's kinda self explanatory that it starts lagging with such a huge amount of GUI's...

How many GUIs can you create? Using this line

;~ _setPixel(_WinAPI_GetMousePosX(), _WinAPI_GetMousePosY()) in lieu of this _setPixel(2*$i, 2*$i) ?

Okay, maybe you got a faster CPU. There is still the sleep in the loop, so why should eat use ~ 100 % CPU? Just to keep in mind there are many GUIs out there?

I'll give it a try without the guicreating-loop / or using a hotkey to jump out of the creating function to a

while 1

Sleep(1000)

wend

function to see whether it still eats up my CPU then.

Good night from Germany!

Mega

FreeFry · March 24, 2008

I ran it, I got to 750 GUI's before it really slowed down to like 3 GUI's a second, and CPU shows as 50%(I'm betting it's 100% as it's a dual core cpu(P4, 3.6GHz))

Edit:

I changed the Sleep(50) to 1 so I wouldn't have to wait.

Edited March 24, 2008 by FreeFry

Xenobiologist · March 24, 2008

Hi,

hmmh I cannot explain.

I guess this is a bug. Autoit uses 100 % of CPU after reaching a "max" of GUIs. On my PC it is ~ 297 GUIs.

Even jumping into the idle func it uses 100 % till then.

HotKeySet('{ESC}', '_end')
HotKeySet('1', '_create')
HotKeySet('2', '_idle')

_create()

Func _create()
    For $i = 0 To 1000
        GUICreate($i, Random(10, 100, 1), Random(10, 50, 1), _
                Random(0, @DesktopWidth - 110, 1), Random(0, @DesktopHeight - 60, 1), _
                $WS_POPUP, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST))
        GUISetState()
        ToolTip($i, 0, 0)
        Sleep(5)
    Next
EndFunc   ;==>_create

Func _idle()
    ConsoleWrite('! idle' & @CRLF)
    While 1
        Sleep(10000)
    WEnd
EndFunc   ;==>_idle

Func _end()
    Exit (0)
EndFunc   ;==>_end

Mega

FreeFry · March 24, 2008

Weird stuff.

Xenobiologist · March 24, 2008

Weird stuff.

Yes!, because I cannot see why many GUIs should eat the CPU in lieu of RAM. And how to get 1024 GUIs as stated in the helpfile?

Mega

Bowmore · March 24, 2008

Yes!, because I cannot see why many GUIs should eat the CPU in lieu of RAM. And how to get 1024 GUIs as stated in the helpfile?
Mega

Just tried this on my PC 3.2Mhz Pentium4 HT and it flies along until about 170 GUIs have been created when it starts to slow down and finally stalls at 185 GUIs with 1 CPU tread maxed out at 50%

FreeFry · March 24, 2008

Maybe AutoIt does some background handling of each GUI or something, and that's what making it slow down...

I'm surprised none of the Devs have responded yet.

FreeFry · March 24, 2008

Just tried this on my PC 3.2Mhz Pentium4 HT and it flies along until about 170 GUIs have been created when it starts to slow down and finally stalls at 185 GUIs with 1 CPU tread maxed out at 50%

Nice one.

Xenobiologist · March 24, 2008

Hi,

I did a BugReport, so probably we'll get an answer soon.

#include<WindowsConstants.au3>

;~ Maximum number of GUI windows: No limit ????

HotKeySet('{ESC}', '_end')
HotKeySet('1', '_create')
HotKeySet('2', '_idle')

_create()

Func _create()
    For $i = 0 To 1000
        GUICreate('', Random(10, 100, 1), Random(10, 50, 1), _
                Random(0, @DesktopWidth - 110, 1), Random(0, @DesktopHeight - 60, 1), _
                $WS_POPUP, BitOR($WS_EX_TOOLWINDOW, $WS_EX_TOPMOST))
        GUISetBkColor(_randomColor())
        GUISetState()
        ToolTip($i, 0, 0)
        Sleep(5)
    Next
EndFunc   ;==>_create

Func _idle()
    ConsoleWrite('! idle' & @CRLF)
    While 1
        Sleep(10000)
    WEnd
EndFunc   ;==>_idle

Func _randomColor()
    Return Random(0x000000, 0xFFFFFF)
EndFunc   ;==>_randomColor

Func _end()
    Exit (0)
EndFunc   ;==>_end

Eats up CPU (creating many GUIs)

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