Created
November 13, 2013 14:15
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Benchmark output for explicit vs implicit returns against all the Rubies randomly installed on my desktop.
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| john@SLAB:~/Dropbox/Code$ rvm all --verbose do ruby explict_implicit_bm.rb | |
| jruby-1.6.5: jruby 1.6.5 (ruby-1.8.7-p330) (2011-10-25 9dcd388) (Java HotSpot(TM) 64-Bit Server VM 1.6.0_51) [darwin-x86_64-java] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.397000 0.000000 0.397000 ( 0.368000) | |
| implicit 0.339000 0.000000 0.339000 ( 0.339000) | |
| ----------------------------------- total: 0.736000sec | |
| user system total real | |
| explicit 0.340000 0.000000 0.340000 ( 0.340000) | |
| implicit 0.355000 0.000000 0.355000 ( 0.355000) | |
| jruby-1.7.4: jruby 1.7.4 (1.9.3p392) 2013-05-16 2390d3b on Java HotSpot(TM) 64-Bit Server VM 1.6.0_51-b11-457-11M4509 [darwin-x86_64] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.900000 0.030000 0.930000 ( 0.521000) | |
| implicit 0.390000 0.000000 0.390000 ( 0.357000) | |
| ----------------------------------- total: 1.320000sec | |
| user system total real | |
| explicit 0.370000 0.000000 0.370000 ( 0.368000) | |
| implicit 0.390000 0.000000 0.390000 ( 0.384000) | |
| Gemset '' does not exist, 'rvm macruby-0.10 do rvm gemset create ' first, or append '--create'. | |
| Gemset '' does not exist, 'rvm maglev-26063 do rvm gemset create ' first, or append '--create'. | |
| maglev-26852: maglev 0.9 (ruby 1.8.7) (2011-09-21 rev 26852-1302-bda8f14) [Darwin x86_64] | |
| ruby: [Error] /Users/john/.rvm/rubies/maglev-26852/gemstone does not appear to be a valid GemStone product directory. | |
| To fix this, set a valid GEMSTONE in your .bashrc | |
| rbx-head: rubinius 1.2.5dev (1.8.7 411a2467 yyyy-mm-dd JI) [x86_64-apple-darwin11.0.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.507692 0.000104 0.507796 ( 0.491746) | |
| implicit 0.488678 0.000068 0.488746 ( 0.480013) | |
| ----------------------------------- total: 0.996542sec | |
| user system total real | |
| explicit 0.225156 0.000024 0.225180 ( 0.225184) | |
| implicit 0.222985 0.000025 0.223010 ( 0.222992) | |
| ree-1.8.7-2010.02: ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.8.0], MBARI 0x6770, Ruby Enterprise Edition 2010.02 | |
| Rehearsal -------------------------------------------- | |
| explicit 2.380000 0.000000 2.380000 ( 2.430614) | |
| implicit 1.670000 0.000000 1.670000 ( 1.718983) | |
| ----------------------------------- total: 4.050000sec | |
| user system total real | |
| explicit 2.310000 0.000000 2.310000 ( 2.312416) | |
| implicit 1.690000 0.000000 1.690000 ( 1.710869) | |
| ree-1.8.7-2011.03: ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-darwin10.8.0], MBARI 0x6770, Ruby Enterprise Edition 2011.03 | |
| Rehearsal -------------------------------------------- | |
| explicit 2.090000 0.000000 2.090000 ( 2.091729) | |
| implicit 1.450000 0.000000 1.450000 ( 1.492258) | |
| ----------------------------------- total: 3.540000sec | |
| user system total real | |
| explicit 2.110000 0.000000 2.110000 ( 2.104354) | |
| implicit 1.440000 0.000000 1.440000 ( 1.441560) | |
| ruby-1.8.7-p352: ruby 1.8.7 (2011-06-30 patchlevel 352) [i686-darwin10.8.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 2.040000 0.000000 2.040000 ( 2.082407) | |
| implicit 1.320000 0.000000 1.320000 ( 1.322298) | |
| ----------------------------------- total: 3.360000sec | |
| user system total real | |
| explicit 2.020000 0.000000 2.020000 ( 2.018939) | |
| implicit 1.360000 0.000000 1.360000 ( 1.389295) | |
| ruby-1.9.2-p0: ruby 1.9.2p0 (2010-08-18 revision 29036) [x86_64-darwin11.3.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.780000 0.000000 0.780000 ( 0.779611) | |
| implicit 0.790000 0.000000 0.790000 ( 0.790240) | |
| ----------------------------------- total: 1.570000sec | |
| user system total real | |
| explicit 0.800000 0.000000 0.800000 ( 0.838650) | |
| implicit 0.780000 0.000000 0.780000 ( 0.783845) | |
| ruby-1.9.2-p180: ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-darwin10.8.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.770000 0.000000 0.770000 ( 0.769755) | |
| implicit 0.760000 0.000000 0.760000 ( 0.756907) | |
| ----------------------------------- total: 1.530000sec | |
| user system total real | |
| explicit 0.760000 0.000000 0.760000 ( 0.757747) | |
| implicit 0.770000 0.000000 0.770000 ( 0.767553) | |
| ruby-1.9.2-p290: ruby 1.9.2p290 (2011-07-09 revision 32553) [x86_64-darwin11.1.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.760000 0.000000 0.760000 ( 0.755057) | |
| implicit 0.770000 0.000000 0.770000 ( 0.839862) | |
| ----------------------------------- total: 1.530000sec | |
| user system total real | |
| explicit 0.750000 0.000000 0.750000 ( 0.749637) | |
| implicit 0.760000 0.000000 0.760000 ( 0.764927) | |
| ruby-1.9.3-p0: ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin12.2.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.760000 0.000000 0.760000 ( 0.767132) | |
| implicit 0.760000 0.000000 0.760000 ( 0.760760) | |
| ----------------------------------- total: 1.520000sec | |
| user system total real | |
| explicit 0.790000 0.000000 0.790000 ( 0.787345) | |
| implicit 0.800000 0.000000 0.800000 ( 0.841993) | |
| ruby-1.9.3-p374: ruby 1.9.3p374 (2013-01-15 revision 38858) [x86_64-darwin12.2.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.840000 0.000000 0.840000 ( 0.840365) | |
| implicit 0.770000 0.000000 0.770000 ( 0.769661) | |
| ----------------------------------- total: 1.610000sec | |
| user system total real | |
| explicit 0.740000 0.000000 0.740000 ( 0.747272) | |
| implicit 0.770000 0.000000 0.770000 ( 0.813625) | |
| ruby-1.9.3-p448: ruby 1.9.3p448 (2013-06-27 revision 41675) [x86_64-darwin12.4.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.740000 0.000000 0.740000 ( 0.737122) | |
| implicit 0.750000 0.000000 0.750000 ( 0.744864) | |
| ----------------------------------- total: 1.490000sec | |
| user system total real | |
| explicit 0.750000 0.000000 0.750000 ( 0.753330) | |
| implicit 0.750000 0.000000 0.750000 ( 0.753751) | |
| ruby-2.0.0-p247: ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.3.0] | |
| Rehearsal -------------------------------------------- | |
| explicit 0.870000 0.000000 0.870000 ( 0.873909) | |
| implicit 0.900000 0.000000 0.900000 ( 0.961103) | |
| ----------------------------------- total: 1.770000sec | |
| user system total real | |
| explicit 0.910000 0.000000 0.910000 ( 0.912819) | |
| implicit 0.900000 0.000000 0.900000 ( 0.891823) |
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Can you post the actual benchmark code please? If JRuby is really slower there, I'd like to get it fixed. I took a best guess at what the script would look like and ran it on JRuby 1.7.8 and found after warm-up that explicit returns were moderately faster than implicit.