rcmaehl Posted December 6, 2011 Share Posted December 6, 2011 (edited) Okay. I've read a few threads that suggest using Sleep(10) in long Do...Until Loops to lower CPU usage. Is that like the official amount for best Performance/Load or something? Also, a semi-related question, How long does Sleep(0) sleep for? It has to sleep for some amount of time (probably less than a millisecond, and in the nanosecond range) because it gets executed or do all sleep(0)s get removed upon compiling? EDIT: Removed grammatical error. Edited December 6, 2011 by rcmaehl My UDFs are generally for me. If they aren't updated for a while, it means I'm not using them myself. As soon as I start using them again, they'll get updated.My Projects WhyNotWin11Cisco Finesse, Github, IRC UDF, WindowEx UDF Link to comment Share on other sites More sharing options...
water Posted December 6, 2011 Share Posted December 6, 2011 (edited) Give this little script a try. Run it from SciTe, run it compiled and compare the displayed time. $a = TimerInit() Sleep(0) $b = TimerDiff($a) MsgBox(0,"", $b) As compiling means to put the script and everything needed for execution into an exe file your script is still interpreted when you run the exe. So I guess you won't see a difference because sleep(0) will not be removed. Edited December 6, 2011 by water My UDFs and Tutorials: Spoiler UDFs:Active Directory (NEW 2022-02-19 - Version 1.6.1.0) - Download - General Help & Support - Example Scripts - WikiExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example ScriptsOutlookEX (2021-11-16 - Version 1.7.0.0) - Download - General Help & Support - Example Scripts - WikiOutlookEX_GUI (2021-04-13 - Version 1.4.0.0) - DownloadOutlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - WikiPowerPoint (2021-08-31 - Version 1.5.0.0) - Download - General Help & Support - Example Scripts - WikiTask Scheduler (NEW 2022-07-28 - Version 1.6.0.1) - Download - General Help & Support - Wiki Standard UDFs:Excel - Example Scripts - WikiWord - Wiki Tutorials:ADO - WikiWebDriver - Wiki Link to comment Share on other sites More sharing options...
rcmaehl Posted December 6, 2011 Author Share Posted December 6, 2011 Give this little script a try. Run it from SciTe, run it compiled and compare the displayed time. $a = TimerInit() Sleep(0) $b = TimerDiff($a) MsgBox(0,"", $b) As compiling means to put the script and everything needed for execution into an exe file your script is still interpreted when you run the exe. So I guess you won't see a difference because sleep(0) will not be removed. Wouldn't running that in a finite loop about 1000 or so times and then calculating the average give a better estimation? My UDFs are generally for me. If they aren't updated for a while, it means I'm not using them myself. As soon as I start using them again, they'll get updated.My Projects WhyNotWin11Cisco Finesse, Github, IRC UDF, WindowEx UDF Link to comment Share on other sites More sharing options...
water Posted December 6, 2011 Share Posted December 6, 2011 (edited) But you add the overhead of the loop. And as Sleep(0) needs very little processing time you mainly measure the loop. See the difference:$iTimerA = TimerInit() $iTimerB = TimerInit() For $i = 1 To 1000 Sleep(0) Next $IResultA = TimerDiff($iTimerA) For $i = 1 To 1000 Next $IResultB = TimerDiff($iTimerB) MsgBox(0,"", "1000 loops with Sleep(0) take: " & $IResultA & " milliseconds" & @CRLF & _ "1000 loops without Sleep(0) takes: " & $IResultB - $IResultA & " milliseconds") Edited December 6, 2011 by water My UDFs and Tutorials: Spoiler UDFs:Active Directory (NEW 2022-02-19 - Version 1.6.1.0) - Download - General Help & Support - Example Scripts - WikiExcelChart (2017-07-21 - Version 0.4.0.1) - Download - General Help & Support - Example ScriptsOutlookEX (2021-11-16 - Version 1.7.0.0) - Download - General Help & Support - Example Scripts - WikiOutlookEX_GUI (2021-04-13 - Version 1.4.0.0) - DownloadOutlook Tools (2019-07-22 - Version 0.6.0.0) - Download - General Help & Support - WikiPowerPoint (2021-08-31 - Version 1.5.0.0) - Download - General Help & Support - Example Scripts - WikiTask Scheduler (NEW 2022-07-28 - Version 1.6.0.1) - Download - General Help & Support - Wiki Standard UDFs:Excel - Example Scripts - WikiWord - Wiki Tutorials:ADO - WikiWebDriver - Wiki Link to comment Share on other sites More sharing options...
Moderators Melba23 Posted December 6, 2011 Moderators Share Posted December 6, 2011 rcmaehl,Soemwhere here there is a thread where Jon explained all this, but can I find it.....I seem to remember that Sleep(10) is the lowest value that Sleep will accept - anything lower still gives you a Sleep(10) - and that this is the result of a Windows limitation rather than anything in AutoIt. I believe it was reduced from Sleep(15) at some time in AutoIt's past when the Windows API changed internally. By the way monoceres produced a UDF which had nanosecond accuracy and he found that 100ns was quite sufficient to offload his CPU - so Sleep(10) should be more than adequate. And you do realise that you do not need a Sleep in a GUIGetMsg loop as the function does its own idle? As far as I know Sleep(0) is a special case which means that you give up the timeslice allocated by Windows - quite what effect that will have on your script I have no idea. I hope this helps. I will keep looking for that thread.... M23 Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind Open spoiler to see my UDFs: Spoiler ArrayMultiColSort ---- Sort arrays on multiple columnsChooseFileFolder ---- Single and multiple selections from specified path treeview listingDate_Time_Convert -- Easily convert date/time formats, including the language usedExtMsgBox --------- A highly customisable replacement for MsgBoxGUIExtender -------- Extend and retract multiple sections within a GUIGUIFrame ---------- Subdivide GUIs into many adjustable framesGUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView itemsGUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeViewMarquee ----------- Scrolling tickertape GUIsNoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxesNotify ------------- Small notifications on the edge of the displayScrollbars ----------Automatically sized scrollbars with a single commandStringSize ---------- Automatically size controls to fit textToast -------------- Small GUIs which pop out of the notification area Link to comment Share on other sites More sharing options...
BrewManNH Posted December 6, 2011 Share Posted December 6, 2011 Putting a sleep into a Do...Until loop will only help with CPU load depending upon what you're doing inside that loop. If it's running a For...Next loop inside that loop 10000 times, every time through the loop, that reads files into arrays it probably won't have any effect on CPU load. If all you're doing is looking for a pixel color to appear it might help somewhat. If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag GudeHow to ask questions the smart way! I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from. Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays. - ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script. - Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label. - _FileGetProperty - Retrieve the properties of a file - SciTE Toolbar - A toolbar demo for use with the SciTE editor - GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI. - Latin Square password generator Link to comment Share on other sites More sharing options...
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