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Re: incredibly slow file listing script on windoze 7 pro 4 core 64 bit
- From: "Larry Hall \(Cygwin\)" <reply-to-list-only-lh at cygwin dot com>
- To: cygwin at cygwin dot com
- Date: Tue, 07 Sep 2010 14:37:49 -0400
- Subject: Re: incredibly slow file listing script on windoze 7 pro 4 core 64 bit
- References: <AANLkTi=ASzGNwU9TSKU2TZSbAksy6=Pu94=0S5Vt0Sc-@mail.gmail.com>
- Reply-to: cygwin at cygwin dot com
On 9/7/2010 12:05 PM, mike marchywka wrote:
this takes a few minutes on old debian machine, taking much longer
here on same data-
about 19k file about 24Gb total size.
Windoze finally has better perf stuff but still no help- one core at
25 pct all kernel
time disk not exactly busy. All the time is in the "ls" loop not the
find command.
Now obbviously I expect the "ls" per file has to make a bunch of OS calls for
each file but still even with cygwin layer seems a bit much.
Thanks.
The problem is that Cygwin has to open all the files to stat when you
use the '-l' flag. Try without the flag to get the lower bound and see if
that's better for you. If so, maybe '-s' will suit your purpose. Or
even 'du'?
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
216 Dalton Rd. (508) 893-9889 - FAX
Holliston, MA 01746
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