[wp-trac] [WordPress Trac] #10987: Improve wptexturize performance

[WordPress Trac]

#10987: Improve wptexturize performance
-------------------------+--------------------------------------------------
 Reporter:  johanee      |       Owner:            
     Type:  enhancement  |      Status:  new       
 Priority:  normal       |   Milestone:  Unassigned
Component:  Performance  |     Version:  2.9       
 Severity:  major        |    Keywords:  has-patch 
-------------------------+--------------------------------------------------
 wptexturize is called for most text shown which makes it highly
 performance sensitive.

 With minimal changes the performance can be improved dramatically:[[BR]]
 1. Make various variables static so they only need to be setup once
 (instead of 60+ times, on a simple page)[[BR]]
 2. Make wptexturize_pushpop_element more efficient by using what we know
 about the string to check and improving the regexp strategy

 Performance for the suggested patch:
 {{{
 Average total page load time (ab -c 1 -n 100 http://example.org/)
 Clean 2.9.0 revision 12065 install

 1 post front page
 org: 47ms
 fix: 44ms

 10 post front page
 org: 84ms
 fix: 76ms

 larger page from real world usage
 org: 135ms
 fix: 108ms
 }}}

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Ticket URL: <http://core.trac.wordpress.org/ticket/10987>
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