Rails rake test much slower in 1.5.0.dev vs 1.4.0

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Fixed
  • Affects Version/s: JRuby 1.5
  • Fix Version/s: JRuby 1.5
  • Component/s: Performance
  • Labels:
    None
  • Environment:
    Windows XP, JRuby 1.4.0 and 1.5.0.dev

Description

When running jruby -b -S rake test on a Rails app with several hundred tests it is easy to see a major performance downturn when moving from 1.4.0 to 1.5.0.dev. This can be seen at http://pastie.org/818994

The reported times by rake are close, but the runtime (from -b) is way slower in 1.5.0.dev.

Issue Links

is related to

Bug - A problem which impairs or prevents the functions of the product. JRUBY-3299 Unable to embed Hpricot gem in a jar file

  • Major - Major loss of function.
  • Closed - The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.

Activity

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Brandon Hauff added a comment -

Found that the long pause is gone/equal to 1.4.0s if we roll back to 13993be918fb5fd68ad021e487b350298d063a29. It seems that some nested jar logic may be to blame.

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Brandon Hauff added a comment - Found that the long pause is gone/equal to 1.4.0s if we roll back to 13993be918fb5fd68ad021e487b350298d063a29. It seems that some nested jar logic may be to blame.
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Vladimir Sizikov added a comment -

Performance (esp. regression) is never a minor thing! Raising the priority.

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Vladimir Sizikov added a comment - Performance (esp. regression) is never a minor thing! Raising the priority.
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Nick Sieger added a comment -

Trunk is back to normal as of 0bef6e0, but we still need to investigate the reasons, and probably implement an index of the contents of all the jars in the JRubyClassLoader.

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Nick Sieger added a comment - Trunk is back to normal as of 0bef6e0, but we still need to investigate the reasons, and probably implement an index of the contents of all the jars in the JRubyClassLoader.
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Nick Sieger added a comment -

Fixed in e103cc0 and re-enabled.

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Nick Sieger added a comment - Fixed in e103cc0 and re-enabled.

People

  • Assignee:
    Nick Sieger
    Reporter:
    Brandon Hauff
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Dates

  • Created:
    Updated:
    Resolved: