Index of /tsuneo/soft/wwgetcp

Icon  Name                    Last modified      Size  Description
[DIR] Parent Directory                             -   
[TXT] README.txt              16-Feb-1999 00:46  4.2K  
[TXT] __noname.html           16-Feb-1999 00:51  4.5K  
[TXT] benchmark               15-Feb-1999 23:46    0   
[DIR] data/                   16-Feb-1999 02:22    -   
[   ] pack                    16-Feb-1999 00:34  280   
[   ] url                     15-Feb-1999 23:45  169   
[   ] wwgetcp-0.01.tar.gz     16-Feb-1999 01:05  8.8K  
[   ] wwgetcp-0.01.tar.gz.old 16-Feb-1999 00:52  8.8K  
[DIR] wwgetcp-0.01/           16-Feb-1999 01:05    -   
[   ] wwgetcp.pl              16-Feb-1999 01:44   26K  

##########################################################################
    wwgetcp
        The fast World Wide Getting Client with Parallel Connections.
        by Yoshioka Tsuneo.
        E-Mail: tsuneo-y@is.aist-nara.ac.jp(obsulute at 1999/03/31)
                QWF00133@nifty.ne.jp
###########################################################################

INTRODUCTION:
-------------
	   Thank you for download this program by http or ftp
	 protocol. 
	   This program is program that can download big file
	 faster by establishing parallel connections. In our
	 test, we can download 1.5 to 10 times  faster than ever!

METHOD:
-------
	  Until now, We download one file with one connection. But in
	this program, download one file with several parellel
	connections.

	For going this process, I use http 'Ranges: byte=A-B', and ftp 
	'REST' command. In generally, these technique is used for
	RESUME. But I use this techniq for pararell connections.
	  For example, when downloading 1000KB file, this program
	establishment 4 connections and each connection download
	250KB. The first connection download 0-250KB,the second
	connection do 250-500KB,... .

WARNING:
--------
	  This program establish parallel several connections, so may
	 be use server resources. And other peoples speed may be slow
	 down. Please pay attension to server load, max connections,
	 network policy, etc.
          The network traffic is not changed because of receive
	  size(file size) is not change.

SERVER:
-------
	  I think the server listed under support parallel
	  connections.
	  
		- Apache 1.2 or lator
		- Netscape-Enterprise/2.0 or lator
		- Microsoft-IIS/3.0 or lator
		- wu-ftpd 2.4.2 or lator
	 By my investigation from NAIST proxy log, 61.6%(372505/604809)
	 http file support parallel connections.

PREPARATION:
------------
	 You must install perl5.

RECOMMENDED:
------------
	 If you install Time::Res perl module, you can get microsecond
	 information.
	 If you don't have Time::Res module you can get second
	 precious information.

ENVIRONMENT:
------------
	 Perhaps this program can any UNIX platform that can use
	 perl5.
	 I test Under environment.
	 
	 Model: SGI O2
	 OS: IRIX 6.3
	 Software:
		perl5.004_04.tar.gz
		Time-HiRes-01.18.tar.gz

	 Model: Intel Platform
	 OS: Linux 2.0.36
	 Software:
		perl5.005_02

USAGE:
------
	 You can print usage by run program with no arguments,no
	 options like under.

--------------------------------------------------------------------------
World Wide Getter Client Parallel version
usage: wwgetcp.pl [-c connections] URL(ftp/http)
 URL
     http://hostname[:port]/pathname/filename
     ftp://[user:pass@]host[:port]/pathname/filename

 options
      -c <connections> :  pararell connection number[4]
      -i <interval>    :  Interval time to start each connections.[0.2]
      -o <output>      :  output filename ( "-" means stdout)
      -t <timeout>     :  connection timeout(sec)[10]
      --reconnect <times> : MAX reconnection times[500]
      -C <dir>         : change current directory
      -v               : verbose output.
      -n               : don't get file. for debuggin.
      --benchmark[=filename]
                       : benchmark test. try 10 times  0-10 connections.
                         Result is witten to specified file.
                         if no filename specified, filename is "benchmark".
Example:
      wwgetcp.pl -v -C /var/tmp ftp://ftp.netscape.com/pub/communicator/4.5/english/windows/windows95_or_nt/base_install/cb32e45.exe
---------------------------------------------------------------------------

AUTHORS:
--------
	Yoshioka Tsuneo
	E-Mail: tsuneo-y@is.aist-nara.ac.jp(Obolute at 1999/03/31)
		QWF00133@nifty.ne.jp

DISTRIBUTION:
-------------
	Now, the latest version can download from under URL.
	http://infonet.aist-nara.ac.jp/~tsuneo-y/soft/wwgetcp/

Special Thanks to...:
--------------------
	 Demizu Noritoshi.
	    The original idea come from him.

Reference:
----------
	 RFC2068 "Hypertext Transfer Protocol -- HTTP/1.1"
	   T. Berners-Lee, H.Frystyk, J.Mogul, J.Gettys, UC Irivine,
	   R. Fielding
         URL: ftp://ftp.tokyonet.ad.jp/pub/doc/rfc/rfc2068.txt

	 RFC765 "FILE TRANSFER PROTOCOL"
	   J. Postel
	 URL: ftp://ftp.tokyonet.ad.jp/pub/doc/rfc/rfc765.txt