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Feature #643

Updated by Alexander Watzinger over 8 years ago

Performance improvements are getting quiet tricky with a complex model and much data. - cleanup logs 
 The last changes got us around 20% overall speed gain. It could be better but waiting for new map implementations for next round. - actor update speedtest (compare medcon) 

 *done* 

 - added transactions 
 - reduced system and user logging 
 - refactored insert entity/link to also accept ids instead of objects 
 - refactored insert entity/link to return ids instead of objects 
 - link checker into own function and test performance (no great impact) 

 *tried* (but no significant performance gain) 

 - turning off link checker 
 - views 
 - database connection without Zend Framework 
 - PDO with persistent connection 
 - tried pg_bouncer 

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