Fastest way to loop through Folders

[euras]

Hi, does anyone knows a faster way to loop through the folders / subfolders? I loop folders / subfolders in a local drive. There is about 4500 folders / subfolders. I gather each folder / subfolder path and write it in .txt file. To perform it using the method bellow, it takes 40 minutes. I think that should go faster...

Code: Select all

SetBatchLines, -1  ; affects CPU utilization... script will run at max speed
ListLines Off  ; helps with speed
Loop, Files, %TreeRoot%\*.*, DR
{
	FileAppend, %A_LoopFileFullPath%`n, %temp_Company_List%
}

[just me]

Code: Select all

#NoEnv
SetBatchLines, -1  ; affects CPU utilization... script will run at max speed
ListLines Off  ; helps with speed

TreeRoot := "???"
temp_Company_List := "???"

ListFile := FileOpen(temp_Company_List, "w")
Loop, Files, %TreeRoot%\*.*, DR
{
   ListFile.Write(A_LoopFileFullPath . "`r`n")
}
ListFile.Close()

?

[euras]

It have reduced performance time from 40 min to 16 min. Pretty good, but maybe it's possible to make it even faster?

[just me]

How long takes an 'empty' loop?

Code: Select all

#NoEnv
SetBatchLines, -1  ; affects CPU utilization... script will run at max speed
ListLines Off  ; helps with speed

TreeRoot := "???"
temp_Company_List := "???"

; ListFile := FileOpen(temp_Company_List, "w")
Loop, Files, %TreeRoot%\*.*, DR
{
   ; ListFile.Write(A_LoopFileFullPath . "`r`n")
   FilePath := A_LoopFileFullPath
}
; ListFile.Close()

[euras]

the same 16 minutes with the empty loop :/

[just me]

That's weird! I don't have any further idea.

[euras]

each folder contains some files, maybe the loop scans those files too?

[ahk7]

Perhaps look into https://autohotkey.com/board/topic/79420-ahk-l-listmftfiles-ntfs-instant-file-search/
Also check if your Antivirus doesn't interfere with AHK it might scan its actions and thus make it slow.

[jeeswg]

One thing to note is that: doing one search can take a long time, but repeating that search immediately after, can be instant. I suppose because everything is cached.

[Xtra]

Code: Select all

Run, %ComSpec% /c dir /s /b /A:D> folders.txt,, Hide