[Octave-bug-tracker] [bug #53794] ishold(hax) is slow when an axis handle is passed in because of ancestor() routine

[Dan Sebald]

URL:
  <http://savannah.gnu.org/bugs/?53794>

                 Summary: ishold(hax) is slow when an axis handle is passed in
because of ancestor() routine
                 Project: GNU Octave
            Submitted by: sebald
            Submitted on: Mon 30 Apr 2018 08:35:54 PM UTC
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: Any

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Details:

Compare:


>> tic; for i=1:10000; ishold(); endfor; toc
Elapsed time is 3.0081 seconds.
>> tic; fig = gcf(); for i=1:10000; ishold(fig); endfor; toc
Elapsed time is 3.11939 seconds.
>> tic; hax = gca(); for i=1:10000; ishold(hax); endfor; toc
Elapsed time is 8.5717 seconds.






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