[Octave-bug-tracker] [bug #59679] Overhead in calling function handles

[anonymous]

URL:
  <https://savannah.gnu.org/bugs/?59679>

                 Summary: Overhead in calling function handles
                 Project: GNU Octave
            Submitted by: None
            Submitted on: Mon 14 Dec 2020 06:18:09 AM UTC
                Category: Interpreter
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: 6.1.0
         Discussion Lock: Any
        Operating System: Any

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Details:

Currently calling a function handle follows these simplified steps:


handle.subsref (arglist) -->

  handle.call (auto& args=arglist.front ()) -->

    feval (handle.m_fcn, args) -->

      handle.m_fcn.subsref (arglist=make_list (args)) -->

        handle.m_fcn.call (arglist.front ())


It may be more efficient to follow these steps:


handle.subsref (arglist) -->

  handle.call (auto& args=arglist.front ()) -->

    handle.m_fcn.call (args)





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  <https://savannah.gnu.org/bugs/?59679>

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