JRuby

Slower execution in 1.9 mode

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Incomplete
  • Affects Version/s: JRuby 1.6.2
  • Fix Version/s: None
  • Component/s: Performance, Ruby 1.9.2
  • Labels:
    None
  • Number of attachments :
    0

Description

This is an example provided by @launchany on Twitter: https://gist.github.com/1036760

It appears to run a bit slower in 1.9 mode than 1.8 mode. After reducing the benchmark a bit, I did find that Array#join is slower, perhaps because it does not precalculate the size of the string. There may be other cases here that can be improved.

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Charles Oliver Nutter added a comment -

There is a more extensive bug that investigates join performance.

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Charles Oliver Nutter added a comment - There is a more extensive bug that investigates join performance.
Charles Oliver Nutter made changes -
Field Original Value New Value
Status Open [ 1 ] Resolved [ 5 ]
Assignee Charles Oliver Nutter [ headius ]
Resolution Incomplete [ 4 ]
Charles Oliver Nutter made changes -
Status Resolved [ 5 ] Closed [ 6 ]

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  • Assignee:
    Charles Oliver Nutter
    Reporter:
    Charles Oliver Nutter
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  • Created:
    Updated:
    Resolved: