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From: "one2001boy AT yahoo DOT com" <one2001boy AT yahoo DOT com>
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Subject: Re: latest ls.exe version in XP problem
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Date: Fri, 22 Oct 2004 02:33:33 GMT
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

Eli Zaretskii wrote:
>>From: "one2001boy AT yahoo DOT com" <one2001boy AT yahoo DOT com>
>>Date: Thu, 21 Oct 2004 02:39:53 GMT
>>
>>I run the command in an old computer.
> 
> 
> How old? if it's slow, what is its CPU clock speed?  And how many
> files are in that directory, anyway?
> 
> 
>> > are there lots of large subdirectories or files
>>
>>>with unusual file-name extensions?  
>>
>>The file name extensions are normal.
> 
> 
> Can you give examples of those ``normal extensions''?
> 

I tried the computer in my desktop right now,

under Windows XP in directory C:\windows\system32, I
have 2558 File(s).

run ls -F, I wait for 16 seconds, and then screen start to display
the files and directories. The computer I am running is Pentium 4,
3.0 Ghz, with 512 Meg.

> 
>>But why subdirecries matter here?  I don't have option "-R"
> 
> 
> ls.exe needs to read the subdirectories to compute their size (DOS
> system calls always return zero for a size of a directory).
> 

I don't know why ls -F needs to calcuate the size of a directory?
it doesn't display the size of a directory for ls -F. Maybe we can 
eliminate such a step for speed?


> 
>>I just noticed if using "dir", the displayed director or files will show 
>>the first page and pause for a second, then display the seoncd page. 
>>This way, it displayes thousands of files.
> 
> 
> `dir' doesn't tell you all the information that `ls' does.

That is right.  What I mean is that the way dir display is different 
from ls.exe. Maybe this information is not helpful.