Regarding PrioQueue

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Return to Thread:User talk:Skilgannon/KDTree/Regarding PrioQueue/reply (10).

So, it turns out that if I use Oracle Java in Windows instead of OpenJDK on Linux, the performance is pretty different: 

 - #1 Skilgannon's Cache-hit KDTree [0.0275]
 - #2 Rednaxela's kd-tree (3rd gen) [0.0290]
 - #3 Rednaxela's kd-tree (2nd gen) [0.0309]
 - #4 Voidious' Linear search [0.5553]

The relative performance of things looks much more similar to what you saw, with a smaller difference between my 3rd and 2nd gen tree, with your one performing better.

Between OracleJava/Windows and OpenJDK/Linux, my 3rd gen tree and your cache-hit tree, swap places it seems. 

java version "1.7.0_25"
Java(TM) SE Runtime Environment (build 1.7.0_25-b17)
Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)

(Also turns out the server JVM is much better suited for the kd-tree test than the client JVM. Edited this post to switch the results to those using the server JVM)

Rednaxela (talk)‎03:43, 19 July 2013

Client JVM is not designed for heavy processing, like how the rumble is.

MN (talk)‎23:51, 19 July 2013
 
 
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