298308 - broswer impaired of response on multiple downloads.

Status: RESOLVED DUPLICATE of bug 120809

(Toolkit :: Downloads API, defect)

Description

[mozilla]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

When surfing vigorously. Lets, say opening 5 or 6 pages in the background (all
new windows) each with 6 to 10 large files(pictures) present. If you are looking
through a completed document while the others are loading and would like to save
a picture. There is a strange effect. It seems that sometimes the file comes out
of the cache and is directly placed in the download location. No problem. At
other times it seems that the command to save the file(picture in cache) is
placed at the bottom of the list of the download manager, or at least routed
through the download manager. Since the other pages are vigorously loading in
the background, this seems to delay the command to save the cached file. The end
effect is that the browser window you are looking at is delayed/lagged/impaired
of all movement (for example scroll wheel scrolling, no windows messages getting
through?). When the cached file has been processed by the download manager (I
assume, because the download manager pops up briefly, even for the cached file,
it seems) the browser movement is restored (and a few backlogged windows
messages are processed). Hence, you get your broswer frozen for about 2 or 3
seconds then it catches up by scrolling enormously. I hope this is clear.

Reproducible: Sometimes

Steps to Reproduce:
1. surf to a site with loads of pictures on each page. 
2. open 5 or 6 pages (with oodles of pictures) in new windows from one fully
loaded page.
3. choose a page that has been loading in the background.
4. attempt to save a picture which is complete visible (in cache)
5. try to scroll while the picture is being saved or save more than one file
quickly after each other.

Actual Results:  
Long delay in window/user response.

Expected Results:  
File should be in cache, so downloading should not be delayed and user response
should not be impaired.

Enjoy the babe link given as sample URL. Muahaahahahhahahhha.

Comment 1

[mozilla]

When the new version came out the effect is still very much apparent.
Downloading an image from a site using the right-click Save As option doens't
save out of the cache and is delayed by the starting of the download manager and
the downloading of the image. All when the image was already completely loaded
in the cache to be able to display the page. Very annoying delay of about 2
secs. I am now running 1.0.6

Feel free to contact me for further details.

Comment 2

[mozilla]

Will someone at LEAST confirm this bug!? It is amazingly annoying. I would
appreciate it to just have it acknownledged. -KiM

Comment 3

[Stephanie Daugherty [:sdaugherty]]

Looks like a duplicate of 120809