The docs state that == with bound variables is very fast due to hashing. The example only shows a simple bound value, eg Person( likes : favouriteCheese ) Cheese( type == likes ) In the following will drools create an implicit hashed variable for '$p.likes' and yield the same performance? $p : Person( ) Cheese( type == $p.likes ) -- View this message in context: http://www.nabble.com/immediate-vs-path-bound-variables-wrt-performance--... Sent from the drools - user mailing list archive at Nabble.com.