299815 - memory gradually increasing on page with canvas

Status: RESOLVED INVALID

(Core :: Graphics: Canvas2D, defect)

Description

[Caleb]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050706
Firefox/1.0+ ID:2005070601

I'm marking this bug UNCONFIRMED because that page has lots of other content and
it should probably be tested on a clean canvas testcase.

But here are my results:

Launch Firefox
Open the URL

24,056Kb -> 48,516Kb

Close tab
Open page again

48,516Kb -> 49, 472Kb

Close tab
Open page again

48,516Kb -> 50,548Kb

Comment 1

[Caleb]

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b3) Gecko/20050709
Firefox/1.0+ ID:2005070910

OK, I used this URL: http://rig.vlad1.com/~vladimir/canvas/cdemo1.html for testing.

1. Started Firefox in safe mode.

2. After pasting the url in the url
20,432KB

3. Open the URL
22,592KB

4. Close Tab, Open URL again
22,944KB

5. Close Tab, Open URL again
23,540KB

6. Close Tab, Open URL again
23,624KB

Comment 2

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

A lot of the memory won't get freed until various elements are garbage
collected; so reloading once or twice isn't really a good test (I don't think).
 Try shift-reloading constantly for about a minute or so, then record memory
usage, then shift-reload again for another 5 minutes... see what the values at
the end are.

Comment 3

[Caleb]

Loaded first time: 26,284K

After ctrl-refreshing 50 times: 27,092K
After refreshing for another minute: 27, 832K

So I don't think there's a leak here.