Fellow Monks,

I have a simple program which parses an XML file and does "stuff". I use it on different OSes.

I have read the profiling tutorial here: Profiling your code.

I'm having a problem understanding why some of the output under Name differs between OSes, i.e. the functions differ. I would have thought they would be the same. I'm confident that someone here can explain the error in my thought process. ;-)

Take the following... (I've cut it to show only the relevant part..)

On AIX

                    
Total Elapsed Time = 1.292316 Seconds        
User+System Time = 0.282316 Seconds            
Name
XML::SAX::PurePerl::Reader::URI::new
XML::SAX::PurePerl::BEGIN
main::BEGIN
XML::Simple::find_xml_file
main::ParseFile
XML::SAX::PurePerl::Productions::BEGIN
strict::bits
Encode::BEGIN
XML::SAX::ParserFactory::BEGIN
XML::SAX::PurePerl::Reader::URI::BEGIN
File::Temp::BEGIN
XML::Simple::start_element
XML::Simple::XMLin
XML::SAX::PurePerl::Name
XML::SAX::PurePerl::CharData
[download]

Just looking at the XML function calls produces this list:

XML::SAX::PurePerl::Reader::URI::new
XML::SAX::PurePerl::BEGIN
XML::Simple::find_xml_file
XML::SAX::PurePerl::Productions::BEGIN
XML::SAX::ParserFactory::BEGIN
XML::SAX::PurePerl::Reader::URI::BEGIN
XML::Simple::start_element
XML::Simple::XMLin
XML::SAX::PurePerl::Name
XML::SAX::PurePerl::CharData
[download]

This is what I don't understand... why are there some function calls being performed on some OSes but not on others? Or are some irrelevant enough that they are simply not being listed?

on Linux_x86_64

XML::SAX::PurePerl::BEGIN
XML::SAX::Base::get_feature
XML::SAX::ParserFactory::_parser_class
XML::SAX::BEGIN
XML::SAX::ParserFactory::BEGIN
XML::SAX::PurePerl::Reader::BEGIN
XML::SAX::PurePerl::Reader::URI::BEGIN
XML::SAX::PurePerl::doctypedecl
[download]

on Solaris 10

XML::SAX::PurePerl::BEGIN
XML::SAX::PurePerl::skip_whitespace
XML::SAX::PurePerl::Reader::data
XML::Simple::start_element
XML::SAX::PurePerl::Reader::Stream::move_along
XML::SAX::PurePerl::element
XML::SAX::PurePerl::Productions::BEGIN
XML::Simple::BEGIN
XML::SAX::ParserFactory::BEGIN
XML::SAX::PurePerl::Reader::BEGIN
XML::SAX::PurePerl::Reader::URI::BEGIN
[download]

I would have thought the output of DProf on the XML::Simple module would be identical on each OS. Why is this not so?

Can someone enlighten me please?

regexes

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.