Explicit return from block much slower than MRI
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Key: JRUBY-2589
URL: http://jira.codehaus.org/browse/JRUBY-2589
Project: JRuby
Issue Type: Bug
Components: Performance
Affects Versions: JRuby 1.1.1
Environment: ruby 1.8.6 (2008-05-28 rev 6586) [i386-jruby1.1.2]
java version "1.5.0_13"
ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-darwin8.10.1]
Reporter: Tyler Jennings
Priority: Minor
Attachments: bench_return_from_block.rb
Performance for an explicit return from a block is very slow compared with MRI.
See attached benchmark.
> jruby -J-server bench_return_from_block.rb
Block without return
1.136000 0.000000 1.136000 ( 1.136000)
0.856000 0.000000 0.856000 ( 0.856000)
0.853000 0.000000 0.853000 ( 0.854000)
0.835000 0.000000 0.835000 ( 0.835000)
0.832000 0.000000 0.832000 ( 0.832000)
Block with return
3.264000 0.000000 3.264000 ( 3.264000)
3.205000 0.000000 3.205000 ( 3.205000)
3.185000 0.000000 3.185000 ( 3.185000)
3.179000 0.000000 3.179000 ( 3.179000)
3.187000 0.000000 3.187000 ( 3.187000)
> ruby bench_return_from_block.rb
Block without return
0.810000 0.010000 0.820000 ( 0.811569)
0.800000 0.000000 0.800000 ( 0.809030)
0.810000 0.000000 0.810000 ( 0.810357)
0.810000 0.000000 0.810000 ( 0.814052)
0.800000 0.010000 0.810000 ( 0.806928)
Block with return
1.260000 0.000000 1.260000 ( 1.261678)
1.250000 0.010000 1.260000 ( 1.264366)
1.270000 0.000000 1.270000 ( 1.272686)
1.260000 0.000000 1.260000 ( 1.261558)
1.250000 0.010000 1.260000 ( 1.258746)
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