209727 - Deleting entries from cookie or download manager consumes available resources, very slow

Status: RESOLVED WORKSFORME

(Core :: Networking: Cookies, defect)

Description

[Chris]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030529
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030529

It appears that the way Mozilla handles large lists of entries is quite slow. 
When ever I delete entries from the download or cookie (Blocked sites) manager,
it consumes upto 96 percent of resources (4 going elsewhere) and slows to a
halt, then after an indeterminite amount of time it recovers.  Windows reports
it as "Not Responding" until it finishes.

Reproducible: Always

Steps to Reproduce:
1. Visit a large amount of sites and block cookies from them (Or download lots
of files)
2. Go to cookie manager and to the site tab (Go to download manager)
3. Try to delete incriminating websites and watch it be slow (Delete useless
file entries and watch it be slow)
Actual Results:  
It consumed available resources and slowed to a halt (Windows reports all
components as "Not Responding" until it finished)

Expected Results:  
It should have used less resources and still have been usable, or have been at
least usable.

Using modern theme, can't test without loosing bug report, bleh.

Comment 1

[Joe Infla]

Moving bug from browser-general component to cookies, and setting severity to
normal rather than enhancement.  Reporter, would you please give an idea of what
computer specs you use (processor, RAM), and roughly how many blocked cookies or
downloaded files is "a large amount?"  And how long does the program slow or
freeze when you delete these entries?

Comment 2

[Andrew Schultz]

I have about 100 cookies and about 600 blocked sites.  deleting a single cookie
takes >1 seconds on my P-II 450 MHz computer, but only when adding the site to
the block list.

Chris: do you have Mozilla automatically add the site to the block list?

reassigning

Comment 3

[Joe Infla]

reporter nonresponsive --> closing