Github user dbtsai commented on the pull request:

    https://github.com/apache/spark/pull/3288#issuecomment-63566328
  
    (PS, when I did the bytecode analysis, I found that accessing the 
    member variables of values and values.size require two operation. 
    By having a local copy of reference to make it as single call, there is
    another 8% performance gain. See 
    
http://stackoverflow.com/questions/6602922/is-it-faster-to-access-final-local-variables-than-class-variables-in-java
 for detail)



---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---

---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to