10-30-2017
Below is what I traced back. Basically there will be huge file we are processing that in parallel . The file
transaction_data.dat will be compared with the
spend.dat. The file spend is a small file. We will match the transaction between these file and do the aggregation
I made the
transaction_data.dat in SAN . Even with that I am seeing the first parallel process is taking less time and the process time increase with the split going on
Below is the log on the process. I see the process split the file almost into equal split but not sure why the process different between each parallel run
Quote:
Process 1:
(21899) Total process time = 102.550
(21899) Final Elapsed time = 103.000
(21899) Position Start 0Position End 4700904
Process2:
(21900) Total process time = 193.660
(21900) Final Elapsed time = 195.000
(21900) Position Start 4700904Position End 9401808
Process 3:
(21901) Total process time = 300.220
(21901) Final Elapsed time = 303.000
(21901) Position Start 9401808Position End 14102218
Process 4:
(21902) Total process time = 333.180
(21902) Final Elapsed time = 337.000
(21902) Position Start 14102218Position End 18802628
Process 5:
(21903) Total process time = 379.340
(21903) Final Elapsed time = 383.000
(21903) Position Start 18802628Position End 23504026
Process 6:
(21904) Total process time = 423.610
(21904) Final Elapsed time = 428.000
(21904) Position Start 23504026Position End 28204436
Process 7:
(21905) Total process time = 411.130
(21905) Final Elapsed time = 415.000
(21905) Position Start 28204436Position End 32905093
Process 8:
(21906) Total process time = 532.900
(21906) Final Elapsed time = 538.000
Last edited by arunkumar_mca; 10-31-2017 at 12:03 PM..
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LEARN ABOUT DEBIAN
xml::parser::lite
XML::Parser::Lite(3pm) User Contributed Perl Documentation XML::Parser::Lite(3pm)
NAME
XML::Parser::Lite - Lightweight regexp-based XML parser
SYNOPSIS
use XML::Parser::Lite;
$p1 = new XML::Parser::Lite;
$p1->setHandlers(
Start => sub { shift; print "start: @_
" },
Char => sub { shift; print "char: @_
" },
End => sub { shift; print "end: @_
" },
);
$p1->parse('<foo id="me">Hello World!</foo>');
$p2 = new XML::Parser::Lite
Handlers => {
Start => sub { shift; print "start: @_
" },
Char => sub { shift; print "char: @_
" },
End => sub { shift; print "end: @_
" },
}
;
$p2->parse('<foo id="me">Hello <bar>cruel</bar> World!</foo>');
DESCRIPTION
This Perl implements an XML parser with a interface similar to XML::Parser. Though not all callbacks are supported, you should be able to
use it in the same way you use XML::Parser. Due to using experimantal regexp features it'll work only on Perl 5.6 and above and may behave
differently on different platforms.
Note that you cannot use regular expressions or split in callbacks. This is due to a limitation of perl's regular expression implementation
(which is not re-entrant).
SUBROUTINES
/METHODS
new
Constructor.
As (almost) all SOAP::Lite constructors, new() returns the object called on when called as object method. This means that the following
effectifely is a no-op if $obj is a object:
$obj = $obj->new();
New accepts a single named parameter, "Handlers" with a hash ref as value:
my $parser = XML::Parser::Lite->new(
Handlers => {
Start => sub { shift; print "start: @_
" },
Char => sub { shift; print "char: @_
" },
End => sub { shift; print "end: @_
" },
}
);
The handlers given will be passed to setHandlers.
setHandlers
Sets (or resets) the parsing handlers. Accepts a hash with the handler names and handler code references as parameters. Passing "undef"
instead of a code reference replaces the handler by a no-op.
The following handlers can be set:
Init
Start
Char
End
Final
All other handlers are ignored.
Calling setHandlers without parameters resets all handlers to no-ops.
parse
Parses the XML given. In contrast to XML::Parser's parse method, parse() only parses strings.
Handler methods
Init
Called before parsing starts. You should perform any necessary initializations in Init.
Start
Called at the start of each XML node. See XML::Parser for details.
Char
Called for each character sequence. May be called multiple times for the characters contained in an XML node (even for every single
character). Your implementation has to make sure that it captures all characters.
End
Called at the end of each XML node. See XML::Parser for details
Comment
See XML::Parser for details
XMLDecl
See XML::Parser for details
Doctype
See XML::Parser for details
Final
Called at the end of the parsing process. You should perform any necessary cleanup here.
SEE ALSO
XML::Parser
COPYRIGHT
Copyright (C) 2000-2007 Paul Kulchenko. All rights reserved.
Copyright (C) 2008- Martin Kutter. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
This parser is based on "shallow parser" http://www.cs.sfu.ca/~cameron/REX.html Copyright (c) 1998, Robert D. Cameron.
AUTHOR
Paul Kulchenko (paulclinger@yahoo.com)
Martin Kutter (martin.kutter@fen-net.de)
Additional handlers supplied by Adam Leggett.
perl v5.12.4 2011-08-29 XML::Parser::Lite(3pm)