Bug #15652: Profiler__ is not working correctly (ruby 2.6)

• Status: Rejected
• Assignee: hsbt (Hiroshi SHIBATA)
• Target version: -
• ruby -v: ruby 2.6.0p0 (2018-12-25 revision 66547) [x64-mingw32]
• Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN

[hellio6 (Luc Vu)]

Try running the Profiler example from documentation page.
(https://docs.ruby-lang.org/en/2.6.0/Profiler__.html)

require 'profile'

def slow_method
  5000.times do
    9999*999999999
  end
end

def fast_method
  5000.times do
    9999+999999999
  end
end

slow_method
fast_method

Output:

  %   cumulative   self              self     total
 time   seconds   seconds    calls  ms/call  ms/call  name
 79.49     0.06      0.06        2    31.00    39.00  Integer#times
 20.51     0.08      0.02     5001     0.00     0.01  Object#slow_method
  0.00     0.08      0.00        2     0.00     0.00  Module#method_added
  0.00     0.08      0.00        1     0.00     0.00  TracePoint#enable
  0.00     0.08      0.00     5001     0.00     0.01  Object#fast_method
  0.00     0.08      0.00        1     0.00     0.00  TracePoint#disable
  0.00     0.08      0.00        1     0.00     0.00  TracePoint#__enable
  0.00     0.08      0.00        1     0.00    78.00  #toplevel

By this output, the slow_method and fast_method is called 5000 times?
I think this is not correct and not match with documentation page

[hsbt (Hiroshi SHIBATA)]

• Status changed from Open to Rejected
• Assignee set to hsbt (Hiroshi SHIBATA)

Unfortunately, No one maintains it. I suggest using the alternative tool like rbspy.