[Mediawiki-l] Profiling information - how many percent make 100?

[Sam.Sexton at thomsonreuters.com]

I said:

> Hi - I've just implemented profiling on 1.13.0 to see where the time
goes and I'm just a little confused:
> 
> Here's a clip of what profileinfo.php shows me:
>  
> -total     100%
> 
> MediaWiki::initialize [+]                62.14%
> 
> Parser::parse [+]              60.5%
> 
> MediaWiki::performAction          60.35%
> 
> Article::view       58.87%
> 
> Parser::internalParse     46.76%
> 
> Parser::replaceVariables               30.62%
> 
> Parser::braceSubstitution [+]     18.86%
> 
> MediaWiki::finalCleanup              16.74%
> 
> OutputPage::output       16.05%
> 
> Output-skin        15.96%
> 
> SkinTemplate::outputPage [+]   15.95%
> 
> AutoLoader::autoload   15.71%
> 
> Now, perhaps I'm out of touch and this is a quantum mechanics matter
that's beyond me, but in the olden days, there were only 100 percentage
points - but  the first two entries alone claim to be taking >120% of
the time - so I'd be grateful if this could be explained to me, please!
> 
> Thanks,
> 
> /Sam

============

What would also help is a sample of what a well-performing system would
show - this stuff ain't intuitive - to me, at least!

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