1454473 - ghost-windows wasm

Status: RESOLVED WORKSFORME

(Firefox :: Untriaged, defect)

Description

[kolorafa]

Attachment: memory-report.json.gz

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20180327223059

Steps to reproduce:

Play a game? (maybe few times go previous page and back to latest while playing) :)
https://www.war-attack.com/Game/index.php

(btw, hava a nice play)


Actual results:

Ghost-windows with high (1.6GB of memory used)

3 (100.0%) -- ghost-windows
├──2 (66.67%) ── https://www.war-attack.com/Game/index.php [2]
└──1 (33.33%) ── https://rokawar.itch.io/war-attack

1,604.21 MB (100.0%) -- explicit
├────923.20 MB (57.55%) -- window-objects
│    ├──902.53 MB (56.26%) -- top(none)/ghost
│    │  ├──900.62 MB (56.14%) -- window(https://www.war-attack.com/Game/index.php)
│    │  │  ├──900.55 MB (56.14%) -- js-compartment(https://www.war-attack.com/Game/index.php)
│    │  │  │  ├──900.12 MB (56.11%) -- classes
│    │  │  │  │  ├──603.84 MB (37.64%) -- class(ArrayBuffer)/objects
│    │  │  │  │  │  ├──544.00 MB (33.91%) ── non-heap/elements/wasm [2]
│    │  │  │  │  │  ├───59.84 MB (03.73%) ── malloc-heap/elements/normal [2]
│    │  │  │  │  │  └────0.00 MB (00.00%) ── gc-heap [2]
│    │  │  │  │  ├──290.94 MB (18.14%) -- class(WebAssembly.Instance)/objects
│    │  │  │  │  │  ├──171.50 MB (10.69%) ── non-heap/code/wasm [2]
│    │  │  │  │  │  ├──119.44 MB (07.45%) ── malloc-heap/misc [2]
│    │  │  │  │  │  └────0.00 MB (00.00%) ── gc-heap [2]
│    │  │  │  │  └────5.33 MB (00.33%) ++ (9 tiny)
│    │  │  │  └────0.44 MB (00.03%) ++ (5 tiny)
│    │  │  └────0.07 MB (00.00%) ++ (3 tiny)
│    │  └────1.91 MB (00.12%) ++ window(https://rokawar.itch.io/war-attack)
│    └───20.67 MB (01.29%) ++ (2 tiny)
├────386.68 MB (24.10%) ── heap-unclassified
├────170.54 MB (10.63%) -- heap-overhead
│    ├──155.10 MB (09.67%) ── bin-unused
│    └───15.45 MB (00.96%) ++ (2 tiny)
├─────59.84 MB (03.73%) -- js-non-window
│     ├──42.80 MB (02.67%) -- zones
│     │  ├──32.23 MB (02.01%) ++ zone(0x7f7482663000)
│     │  └──10.58 MB (00.66%) ++ (6 tiny)
│     └──17.04 MB (01.06%) ++ (2 tiny)
├─────37.98 MB (02.37%) -- webaudio
│     ├──37.60 MB (02.34%) ── audiobuffer
│     └───0.38 MB (00.02%) ++ (2 tiny)
└─────25.97 MB (01.62%) ++ (20 tiny)



Expected results:

After closing tab, all memory for it purged.

Comment 1

[Abe - QA (:Abe_LV)]

Hi erahm, comment or suggestion on this memory report? Thanks

Comment 2

[Andrew McCreight [:mccr8]]

The first step here would be to find some good steps to reproduce this issue, then see if it reproduces on Nightly. I fixed one issue like this recently, but I can't say if this is the same thing without more information.

Comment 3

[Eric Rahm [:erahm]]

I was unable to load the game on my Linux box, I'll give it a shot on OSX.

Comment 4

[Eric Rahm [:erahm]]

I'm unable to reproduce this on the latest OSX nightly. Can you reproduce on the latest version of Firefox?

Comment 5

[Abe - QA (:Abe_LV)]

Attachment: memory-report.json.gz

I see around 832MB of memory usage on Ubuntu 16.04 64 bits with the latest nightly. I do not see a ghost-windows in this report.

Is this a normal (expected) memory usage for such games? 

Explicit Allocations

832.59 MB (100.0%) -- explicit
├──421.29 MB (50.60%) -- window-objects/top(https://www.war-attack.com/index.php?page=Game, id=12884901889)
│  ├──416.06 MB (49.97%) -- active
│  │  ├──408.32 MB (49.04%) -- window(https://www.war-attack.com/Game/index.php#Nothing)
│  │  │  ├──408.16 MB (49.02%) -- js-realm(https://www.war-attack.com/Game/index.php, about:blank)
│  │  │  │  ├──406.80 MB (48.86%) -- classes
│  │  │  │  │  ├──304.07 MB (36.52%) -- class(ArrayBuffer)/objects
│  │  │  │  │  │  ├──272.00 MB (32.67%) ── non-heap/elements/wasm
│  │  │  │  │  │  ├───32.05 MB (03.85%) ── malloc-heap/elements/normal
│  │  │  │  │  │  └────0.02 MB (00.00%) ── gc-heap
│  │  │  │  │  ├──100.81 MB (12.11%) -- class(WebAssembly.Instance)/objects
│  │  │  │  │  │  ├───67.06 MB (08.05%) ── non-heap/code/wasm
│  │  │  │  │  │  ├───33.75 MB (04.05%) ── malloc-heap/misc
│  │  │  │  │  │  └────0.00 MB (00.00%) ── gc-heap
│  │  │  │  │  └────1.91 MB (00.23%) ++ (11 tiny)
│  │  │  │  └────1.36 MB (00.16%) ++ (8 tiny)
│  │  │  └────0.16 MB (00.02%) ++ (4 tiny)
│  │  └────7.74 MB (00.93%) ++ (5 tiny)
│  └────5.23 MB (00.63%) ++ js-zone(0x7f7ece90a000)
├──339.35 MB (40.76%) ── heap-unclassified
├───19.12 MB (02.30%) -- images/content
│   ├──13.31 MB (01.60%) ++ raster/used
│   └───5.81 MB (00.70%) ++ vector/used
├───17.10 MB (02.05%) -- heap-overhead
│   ├──13.10 MB (01.57%) ── bin-unused
│   └───4.01 MB (00.48%) ++ (2 tiny)
├───14.53 MB (01.74%) -- workers/workers(war-attack.com)/worker(blob:https://www.war-attack.com/83579aba-de32-4135-87a2-8804f7c11669, 0x7f7ec57df800)
│   ├──13.15 MB (01.58%) -- zone(0x7f7ec5460000)
│   │  ├──12.85 MB (01.54%) -- realm(web-worker)
│   │  │  ├──12.72 MB (01.53%) -- classes
│   │  │  │  ├──12.59 MB (01.51%) -- class(ArrayBuffer)/objects
│   │  │  │  │  ├──12.59 MB (01.51%) ── malloc-heap/elements/normal
│   │  │  │  │  └───0.00 MB (00.00%) ── gc-heap
│   │  │  │  └───0.14 MB (00.02%) ++ (2 tiny)
│   │  │  └───0.13 MB (00.02%) ++ (6 tiny)
│   │  └───0.30 MB (00.04%) ++ (7 tiny)
│   └───1.38 MB (00.17%) ++ (3 tiny)
├───13.80 MB (01.66%) ++ js-non-window
└────7.40 MB (00.89%) ++ (21 tiny)

Comment 6

[Eric Rahm [:erahm]]

(In reply to Abe - QA (:Abe_LV) from comment #5)
> Created attachment 8982369 [details]
> memory-report.json.gz
> 
> I see around 832MB of memory usage on Ubuntu 16.04 64 bits with the latest
> nightly. I do not see a ghost-windows in this report.
> 
> Is this a normal (expected) memory usage for such games? 

It's using wasm, so yes. Lets close this for now as we can't repro the original issue. kolorafa, please feel free to reopen if you can reproduce the issue.