nickva opened a new issue #528: Revert couch_lru to using gb_trees
URL: https://github.com/apache/couchdb/issues/528
 
 
   Recently couch_lru was changed to use an ets tables.
   
   During eprof benchmarks it showed an improvement performance however 
recently in a larger test with more concurrent updates and 5000 max dbs open it 
showed a significant degradation compared to the previous (gb_tree-based) 
version
   
   
![lru_cache](https://cloud.githubusercontent.com/assets/211822/26177091/5eaa875c-3b26-11e7-923c-e6edd6ca5f8e.png)
   
   
 
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