Issue #161 has been updated by Roger Pack.


ruby-prof seems to at least somewhat work.

~/dev/ruby_1_9_svn ruby-prof go.rb 
Thread ID: 214780
Total: 0.058815

 %self     total     self     wait    child    calls  name
12.782     0.008    0.008    0.000    0.000     3676  Fixnum#==
 8.449     0.005    0.005    0.000    0.000     2431  Fixnum#-
 4.133     0.002    0.002    0.000    0.000     1188  Fixnum#+
 1.872     0.037    0.001    0.000    0.036       61  Object#ackerman-22
 1.865     0.043    0.001    0.000    0.042       61  Object#ackerman-18
 1.863     0.030    0.001    0.000    0.029       61  Object#ackerman-27
...

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http://redmine.ruby-lang.org/issues/show/161

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http://redmine.ruby-lang.org