483772 - Very slow tasklist

Status: RESOLVED INCOMPLETE

(Calendar :: Lightning Only, defect)

Description

[Alexander]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7
Build Identifier: 2.0.0.19 (20081209)

I am permanently have more than 40 tasks in the tasklist, sometimes 50 and more, and scrolling of this list, another reactions to my actions in tasklist (add new task, deleting task, etc.) works very slowly. 



Reproducible: Always

Steps to Reproduce:
1. Add more then 40 tasks in tasklist with full information, with time frames, descriptions, etc.
2. 
3.
Actual Results:  
Tasklist began decelerate. Slow redrawing list of tasks, slow redrawing top panel with buttons, slow drawing dialogs (to add new task, for examle), slow switch to Mail Part and back to Tasklist.

Expected Results:  
Works without deceletatings. :)

I'm useing Mozilla Thunderbird 2.0.0.19 (default theme) and Lightning 0.9.
OS is Microsoft Windows XP SP3.

The computer: Pentuim IV 3 GHz, 2.5 Gb RAM

Comment 1

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Could you attach an ics file with 40 tasks with full information?

Comment 2

[Alexander]

2 Philipp Kewisch:

I'm sorry, but I cann't do this, because I cann't find this *.ics files. There are no this kind of files in my computer. 
Lightning hasn't menu element to export my tasklist.

Comment 3

[Stefan Sitter [:ssitter]]

(In reply to comment #2)

To export your calendar: Switch to calendar mode and choose menu File > Export Calendar. Or select the calendar in the left pane and choose Export from the context menu.

Comment 4

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

I also think this is "fixed" since the performance improvements that were recently checked in. Please retest this with the latest nightlies (ltn 1.0pre with tb3.0beta2 or later) and also attach the exported task list.

Closing bug for now, please reopen if you have more information.