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Date: Thu, 2 Dec 2010 13:29:38 -0700
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Subject: Re: "ls -lrt" takes over 2 minutes for 750 files!
From: Jim Reisert AD1C <jjreisert AT alum DOT mit DOT edu>
To: The Cygwin Mailing List <cygwin AT cygwin DOT com>
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On Thu, Dec 2, 2010 at 1:27 PM, Jim Reisert AD1C <jjreisert AT alum DOT mit DOT edu> w=
rote:

> On Thu, Dec 2, 2010 at 12:58 PM, Jim Reisert AD1C
> <jjreisert AT alum DOT mit DOT edu> wrote:
>
>> Running this version of Cygwin:
>>
>> CYGWIN_NT-6.1-WOW64 JJR 1.7.7(0.230/5/3) 2010-08-31 09:58 i686 Cygwin
>>
>> I have a directory with 753 files.
>>
>> "ls -lrt" (directory in reverse time order) takes forever (well, over
>> 2 minutes):
>>
>> 0.062u 0.264s 2:18.31 0.2% =A0 =A0 =A00+0k 0+0io 2822pf+0w
>>
>> A straight "ls" takes under 1/10 second:
>>
>> 0.000u 0.046s 0:00.08 50.0% =A0 =A0 0+0k 0+0io 2572pf+0w
>>
>> This is a 1.5TB SATA drive in a Intel Q6600 computer with 4GB of RAM.
>>
>> This seems to be a recent problem. =A0Any idea what it might be?
>
> If I pipe the output of ls -lrt to /dev/null, it completes in under a sec=
ond.
>
> I have a GeForce 9500 GT using the almost latest drivers (260.89).
>
> Running in an xterm:
>
> JJR:/cygdrive/f/download> xterm -version
> Cygwin 6.8.99.903(261)
>
> And this X server:
>
> Welcome to the XWin X Server
> Vendor: The Cygwin/X Project
> Release: 1.9.2.0 (10902000)
> Build Date: 2010-11-03

Sorry, one more.   Once the ls -lrt > /dev/null completed, I tried it
to the console again and it completed in under a second.

Some caching issue somewhere?

--=20
Jim Reisert AD1C, <jjreisert AT alum DOT mit DOT edu>, http://www.ad1c.us

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