bugGNU Octave - Bugs: bug #52623, First plot command is very slow

 
 

bug #52623: First plot command is very slow

Submitted by:  Georg Wiora <gwiora>
Submitted on:  Fri 08 Dec 2017 09:17:19 AM UTC  
 
Category: PlottingSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Performance
Status: DuplicateAssigned to: None
Originator Name: gwioraOpen/Closed: Closed
Release: 4.2.1Operating System: Microsoft Windows

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Fri 08 Dec 2017 09:30:53 AM UTC, comment #1:

Hi,

This is a duplicate of bug #45458 . Closing report as duplicate.

Pantxo Diribarne <pantxo>
Project Member
Fri 08 Dec 2017 09:17:19 AM UTC, original submission:

After starting octave the first plot command needs very long time to perform. In my case I found times up to 23 seconds! Subsequent plots run very quickly. I wrote a test script and ran it as first script after starting octave GUI. Here is my script (s. also attachment):

I found the following times when testing all available graphics toolkits:

After a restarting octave a couple of times for this test the time reduced from 23 to 15 seconds.

After that test I added profiling on the plot function and got the following results:

Obviously time is consumed in _go_axes_ function.
Is this problem reproducible or a specialty of my system? Thanks for any confirmations.

Georg Wiora <gwiora>

 

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Attach File(s):
   
   
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Attached Files
file #42604:  figuretimetest.m added by gwiora (652B - application/octet-stream - Test script to profile perfomance problem in first plot.)

 

Depends on the following items: None found

Items that depend on this one: None found

 

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  • -unavailable- added by pantxo (Posted a comment)
  • -unavailable- added by gwiora (Submitted the item)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri 08 Dec 2017 09:31:44 AM UTCpantxoOpen/ClosedOpen=>Closed
    Fri 08 Dec 2017 09:30:53 AM UTCpantxoStatusNone=>Duplicate
    Fri 08 Dec 2017 09:17:19 AM UTCgwioraAttached File-=>Added figuretimetest.m, #42604

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