248652 - Download manager gets extreemly slow if it contains very large number of items.

Status: RESOLVED DUPLICATE of bug 161783

(SeaMonkey :: Download & File Handling, defect)

Description

[Not interested in Mozilla any more]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7) Gecko/20040616
Build Identifier: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7) Gecko/20040616

If there are a very large number of items in the download manager list Mozilla
get's extreemly slow at starting new downloads, removing items from the list and
anything else to do with the download manager. This problem can develope if you
set Mozilla to 'show nothing' when a download starts, as the new download still
gets added to DM's list but the user never sees it.

I found I had 3000+ items in the list and it was taking 30-40 seconds to start a
new download. Also removing even one item from the list took 10-20 seconds with
the 'spinning wheel of death' (mac cursor that shows when the machine is
extreemly buisy). The only way to solve the problem was to delete the downloads
history file in my profile folder.

I've filled an enhancement request for extra features on the download manager,
like automatically removing completed downloads from the list. But, I would hope
this bug will mark the fact that there needs to be a way of solving this problem
from inside the application, should the condition arrise.

Reproducible: Always
Steps to Reproduce:
1.
2.
3.




No tried on other platforms, but I suspect it will be as much a problem for them.
The mac in question was a 600Mhz G4, with 512MB RAM. Very reasonable for this task.

Comment 1

[R.K.Aa.]

*** This bug has been marked as a duplicate of 161783 ***