[wp-trac] Re: [WordPress Trac] #7068: cron improvement

[WordPress Trac]

#7068: cron improvement
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 Reporter:  hailin       |        Owner:  hailin  
     Type:  enhancement  |       Status:  reopened
 Priority:  high         |    Milestone:  2.7     
Component:  General      |      Version:          
 Severity:  normal       |   Resolution:          
 Keywords:               |  
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Comment (by Otto42):

 Mmmm... I don't think that he is, really. A single server setup can still
 get high traffic, and the problem is that high traffic creates the race
 condition. Sure, he only reduced it instead of fixing it, but still, that
 reduction is enough to prevent a large load on the system.

 By moving the doing_cron check into the main code, you reduce the number
 of hits that occur to wp-cron.php in the first place. This is a
 substantial change, because it prevents wp-cron.php from running and then
 having to suddenly load all of WordPress up a few times just to check
 doing_cron.

 Because until the cron job waiting has actually processed, every hit to
 the site would previously cause a hit to wp-cron. So until the job
 finished, you doubled your load. Not a great way to do things.

 Sure the best method is a real cron job, but not everybody can set those
 up easily.

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Ticket URL: <http://trac.wordpress.org/ticket/7068#comment:12>
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