Numeric bignum + float and float + bignum performance very slow
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Key: JRUBY-2193
URL: http://jira.codehaus.org/browse/JRUBY-2193
Project: JRuby
Issue Type: Bug
Components: Performance
Affects Versions: JRuby 1.1RC2
Reporter: Charles Oliver Nutter
This is from Rubinius's benchmark/rubinius/numerics/bm_add.rb:
{noformat}
Ruby:
loop 0.280000 0.000000 0.280000 ( 0.287796)
Bignum + Bignum 1.180000 0.010000 1.190000 ( 1.250289)
Bignum + Fixnum 1.480000 0.010000 1.490000 ( 1.508606)
Bignum + Float 0.870000 0.000000 0.870000 ( 0.911454)
Fixnum + Fixnum 0.770000 0.010000 0.780000 ( 0.801898)
Fixnum + Bignum 2.180000 0.010000 2.190000 ( 2.275250)
Fixnum + Float 0.830000 0.000000 0.830000 ( 0.838134)
Float + Float 0.840000 0.000000 0.840000 ( 0.838043)
Float + Bignum 0.880000 0.000000 0.880000 ( 0.980453)
Float + Fixnum 0.840000 0.000000 0.840000 ( 0.840747)
JRuby:
loop 0.156000 0.000000 0.156000 ( 0.156000)
Bignum + Bignum 0.533000 0.000000 0.533000 ( 0.533000)
Bignum + Fixnum 0.590000 0.000000 0.590000 ( 0.590000)
Bignum + Float 5.324000 0.000000 5.324000 ( 5.325000)
Fixnum + Fixnum 0.518000 0.000000 0.518000 ( 0.518000)
Fixnum + Bignum 0.610000 0.000000 0.610000 ( 0.610000)
Fixnum + Float 0.456000 0.000000 0.456000 ( 0.456000)
Float + Float 0.462000 0.000000 0.462000 ( 0.462000)
Float + Bignum 5.138000 0.000000 5.138000 ( 5.138000)
Float + Fixnum 0.554000 0.000000 0.554000 ( 0.554000)
{noformat}
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