1403782 - Rapidly rising RAM usage on Travis CI build output page with webrender and uBlock Origin

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect)

Description

[Tobias (:Tobbi) Markus]

Attachment: uBlock exported settings

Steps to reproduce:
1. Enable webrendest.
2. Install uBlock Origin (I'm using 1.14.10).
3. Go to a Travis CI page with a running build, at the time of this bug report, this would be https://travis-ci.org/SuperTux/supertux/jobs/280618976
4. Watch CPU and memory usage of content process rise (how fast it rises seems to depend on how often something is added to the Travis build console output).

uBlock Origin: 1.14.10
Firefox Nightly: 58.0a1 (2017-09-27) (64-Bit)

Comment 1

[u603568]

How did you end up with "assets.json" as a selected filter list?

This is *not* a filter list, and I can't make sense of how it ended up in your set of selected filter lists -- there is no way to do this through the UI, only way I can think of is to edit the backup file manually and import the result in uBO.

I don't know whether this is your issue, but importing a non-filter list resource as a filter list will cause undefined behavior. At least for sure, this causes a lot of bad, inefficient filters to be created. Please remove the entries:

    "assets.json",

... and ...

    "assets.json": {
      "off": false
    },

... from the backup file and restore into uBO. See if this fixes your issue.

Comment 2

[Tobias (:Tobbi) Markus]

(In reply to [e-mail] from comment #1)
> How did you end up with "assets.json" as a selected filter list?
> 
> This is *not* a filter list, and I can't make sense of how it ended up in
> your set of selected filter lists -- there is no way to do this through the
> UI, only way I can think of is to edit the backup file manually and import
> the result in uBO.
> 
> I don't know whether this is your issue, but importing a non-filter list
> resource as a filter list will cause undefined behavior. At least for sure,
> this causes a lot of bad, inefficient filters to be created. Please remove
> the entries:
> 
>     "assets.json",
> 
> ... and ...
> 
>     "assets.json": {
>       "off": false
>     },
> 
> ... from the backup file and restore into uBO. See if this fixes your issue.

I just re-exported my settings and I can't find that entry in the new backup file, thus I assume whatever caused it to be in the previous backup is now fixed. Furthermore, I can't reproduce this bug anymore.