bugGNU Octave - Bugs: bug #55816, Laggy file browser


bug #55816: Laggy file browser

Submitted by:  None
Submitted on:  Sun 03 Mar 2019 02:59:22 AM UTC  
Category:  GUI Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Performance
Status:  Need Info Assigned to:  None
Originator Name:  Originator Email:  -email is unavailable-
Open/Closed:  Open Release:  5.1.0
Operating System:  Microsoft Windows

Add a New Comment(Rich Markup)

You are not logged in

Please log in, so followups can be emailed to you.


Mon 04 Mar 2019 12:03:17 AM UTC, comment #3:

my previous description of the lag using a mouse indicated that the lag increased with time. I now notice that colapse/expansion of a folder is very slow the first couple of clicks but improves for each click. But never gets as good as 4.4.1. the arrow symbol next to the folder is inconsistently delayed 0-2 seconds. I can not find a pattern at least.

Also scrolling the File Browser window with the scroll wheel or arrow keys lags with around 1-2 sec. Scrolling by holding the window navigation bar thing and draging with the mouse is smothe with short 0.5 second freezes every 2-4 sec maybe

Sun 03 Mar 2019 11:44:41 PM UTC, comment #2:

Sorry, true.
Key board arrow presses to navigate the marker of files and folders and expanding collapsing folders has around 1-2 sec delay this is consistent. With keyboard, the arrow symbols ">" and "^(downward version)" next to the folder being collapsed or expanded changes simultaneously with showing/hiding content of the folder.

Using a mouse the delay/lag changes with time, having tried a couple of times expanding/collapsing a folder seems much more responsive right after starting octave but degrades to a 1-2 seconds delay after leaving the computer for 10 min(it may take much less than 10 min). This is also true for the the blue marker showing that a file or folder has been marked after a mouse click. The arrow symbol next to the folder is also responsive the first time navigation is done in the file browser. The symbol changes when the expansion/colapse animation is finished, but it degrades to the same 1-2 second lag with time. The pale blue marker showing which folder/file the mouse arrow is above has a consistent 1-2 second delay.

The expanded/collapsed symbol on 4.4.1 is a -/+ symbol in a box and there is no pale blue marker showing which folder the mouse arrow is hovering above. navigating folders with keyboard presses or a mouse is smooth. No lag that i care about or can describe accurately without checking frames of a recording.

Opening a file in 5.1.0 may be slightly slower than 4.4.1 barely noticeable, less than 0.5 sec.

Expanding the folder path drop down history of previously accessed folders is also delayed by around a second on 5.1.0, collapsing is instant. no issue on 4.4.1

Additionally i have noticed a aproximately 5*3 cm black box sometimes appearing for 1 sec below, to the right and after a mouse click to mark a file or folder. The box has appeared both after and before the blue marking showing that the file or folder is marked.

Sun 03 Mar 2019 08:51:48 AM UTC, comment #1:

What does "file browser lags, is excruciatingly slow" mean? That the response to keyboard presses is slow? That there is, say, a ten second delay for the first file window to open (sounds like a Windows font bug that has been around a while)? Use seconds units to describe what is happening in detail.

Dan Sebald <sebald>
Sun 03 Mar 2019 02:59:22 AM UTC, original submission:

32bit x64 Intel quad Q6600 4GB(3.25 usable) ram
windows 10 pro version 1803

first time install bug #55688 happend: avast detected gpg-agent.exe as a virus.

updated avast.
uninstalled Octave Removed everything, verified folder "Octave-" was removed. Restarted computer. Installed octave without issues. Started and the file browser lags, is excruciatingly slow.
Octave 4.4.1 is also on the computer and works without file browser lag



(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:

No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by sebald (Posted a comment)

    Do you think this task is very important?
    If so, you can add your encouragement to it.
    This task has 0 encouragements so far.

    Only project members can vote.




    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2019-03-03 mtmiller StatusNone => Need Info

    Back to the top

    Powered by Savane 3.4