delorie.com/archives/browse.cgi | search |
Mailing-List: | contact cygwin-help AT cygwin DOT com; run by ezmlm |
List-Subscribe: | <mailto:cygwin-subscribe AT cygwin DOT com> |
List-Archive: | <http://sourceware.org/ml/cygwin/> |
List-Post: | <mailto:cygwin AT cygwin DOT com> |
List-Help: | <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs> |
Sender: | cygwin-owner AT cygwin DOT com |
Mail-Followup-To: | cygwin AT cygwin DOT com |
Delivered-To: | mailing list cygwin AT cygwin DOT com |
From: | "Dave Korn" <dave DOT korn AT artimi DOT com> |
To: | <cygwin AT cygwin DOT com> |
Subject: | RE: slow handling of large sets of files? |
Date: | Mon, 10 Jan 2005 14:47:35 -0000 |
MIME-Version: | 1.0 |
In-Reply-To: | <20050110143537.GA1220@ingber.com> |
Message-ID: | <NUTMEGI3pbpmbQzPJu000000e5b@NUTMEG.CAM.ARTIMI.COM> |
X-OriginalArrivalTime: | 10 Jan 2005 14:47:35.0578 (UTC) FILETIME=[52A68FA0:01C4F723] |
> -----Original Message----- > From: cygwin-owner On Behalf Of Lester Ingber > Sent: 10 January 2005 14:36 > I don't understand why handling large data sets is so slow on > my Cygwin? > I have had this problem as far back as I can remember with Cygwin. > Running executables prepared under gcc (without large file > I/O) seem fine. > > Below I include just the top part of `cygcheck -s`. > > To be specific, I have tarred-gzipped directory of about 5300 files, > % ls -l DATA.tar.gz > [...] 92303 Jan 10 05:27 DATA.tar.gz > which can be retrieved using a browser or just `wget` from > http://www.alumni.caltech.edu/~ingber/DATA.tar.gz > > I tested the following commands > (1) gzcat DATA.tar.gz | tar xBpf - > (2) rm -rf DATA Can't reproduce. DKAdmin AT ubik ~> time gunzip -c DATA.tar.gz | tar xBpf - real 0m5.242s user 0m1.101s sys 0m3.144s DKAdmin AT ubik ~> time rm -rf DATA real 0m2.947s user 0m0.620s sys 0m2.133s DKAdmin AT ubik ~> time tar xfzp DATA.tar.gz real 0m6.453s user 0m1.051s sys 0m3.635s DKAdmin AT ubik ~> time rm -rf DATA real 0m2.890s user 0m0.520s sys 0m2.163s DKAdmin AT ubik ~> You _sure_ you aren't accidentally doing this on a remote network drive? cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
webmaster | delorie software privacy |
Copyright © 2019 by DJ Delorie | Updated Jul 2019 |