[Octave-bug-tracker] [bug #45475] output calling "more" has 20+ second delay?

[Nick Jankowski]

URL:
  <http://savannah.gnu.org/bugs/?45475>

                 Summary: output calling "more" has 20+ second delay?
                 Project: GNU Octave
            Submitted by: nrjank
            Submitted on: Sat 04 Jul 2015 05:39:51 PM GMT
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Performance
                  Status: None
             Assigned to: None
         Originator Name: Nick Jankowski
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 4.0.0
        Operating System: Microsoft Windows

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Details:

Using version 4.0.0 on Windows 7, issue appears running with the GUI or with
--no-gui from a windows command prompt.

With GUI: On first call to anything with a long output, there is a 20-30
second delay.  I first saw this calling 'pkg list'.  a second 'pkg list'
appears without delay. calling a long help entry, such as "help n4sid" does
the same thing. After an initial delay on each, I can go back and forth
between the two without any delayed display. Calling a third long output, such
as 

>> [1:100]'

also creates a delay, but calling it again creates a delay almost every time.
But not every time, and I can't seem to predict when it will and won't delay. 
thinking it might be caching something, following up with [1:200]'  didn't
have a delay.  but then "pkg list" right afterward did...

resizing the command window seems to cause it to pause again on an initial
calls to 'pkg list'.

I re-opened Octave with --no-gui from a windows command prompt.  same initial
delay on 'pkg list'.  resizing the command prompt window caused it to delay
again, but on the second call, not the first. 

this is odd. have yet to verify this is not just happening to me. happy trying
to recreate things if it helps. have been doing a "more off" at the start of
every session to avoid all of this.

Also, 
running 
>> profile on; tic; help n4sid
>> toc
Elapsed time is 29.4987 seconds.
>> profile off
>> profexplore
only shows 0.111 seconds on help, even though there was a 30 second delay.
(0.102 seconds to 'system')






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