Closed Bug 1373825 Opened 7 years ago Closed 7 years ago

Nightly memory use running away over time

Categories

(Core :: JavaScript: GC, defect)

Product:
Core
Component:
JavaScript: GC
Type:
defect
Priority:
Not set
Severity:
normal

Tracking

()

Status:
RESOLVED INCOMPLETE

People

(Reporter: sheppy, Unassigned)

Details

(Whiteboard: [MemShrink])

Attachments

(3 files)

about:memory report
458.52 KB, application/x-gzip
Details
Memory tool snapshot for the Dropbox tab using the most memory
5.58 MB, application/x-gzip
Details
about:memory report July 7
452.52 KB, application/x-gzip
Details
Attached file about:memory report — 
I've had this issue for a while (I think; I've had performance issues for ages, so I don't know if this one is new or is the same old one being noticed in a different way) where Firefox performance becomes increasingly sluggish over time. Typically it only takes a day or so (whether actively in use or not) for the browser to start becoming frustratingly sluggish at times.

In IRC today with mconley and erahm, we did some measurements and it looks as if possibly somehow GC isn't happening for an extended period, allowing memory use to pile up over time. My browser is using 6+ GB of RAM right now, for example.

Default number of content processes. 16 GB of physical RAM available.

Attaching some snapshots and the like that may be useful. In this case, it appears that one of my two Dropbox tabs is using a surprising amount of memory.
5,370.16 MB (100.0%) -- explicit
├──4,967.01 MB (92.49%) -- window-objects
│  ├──4,659.82 MB (86.77%) -- top(https://www.dropbox.com/home/[...])
│  │  ├──4,522.12 MB (84.21%) -- active
│  │  │  ├──4,522.00 MB (84.21%) -- window(https://www.dropbox.com/home/[...])
│  │  │  │  ├──4,506.68 MB (83.92%) -- js-compartment(https://www.dropbox.com/home/[...])
│  │  │  │  │  ├──4,504.59 MB (83.88%) -- classes
│  │  │  │  │  │  ├──4,446.76 MB (82.80%) -- class(Object)/objects
│  │  │  │  │  │  │  ├──3,673.00 MB (68.40%) ── gc-heap
│  │  │  │  │  │  │  └────773.76 MB (14.41%) -- malloc-heap
│  │  │  │  │  │  │       ├──761.79 MB (14.19%) ── elements/normal

That's a lot of classes. Does the "minimize memory usage" button in about:memory help, then?
In case it's helpful, my about:support information:

Application Basics
------------------

Name: Firefox
Version: 56.0a1
Build ID: 20170615030208
Update Channel: nightly
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:56.0) Gecko/20100101 Firefox/56.0
OS: Darwin 16.6.0
Multiprocess Windows: 13/13 (Enabled by default)
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Nightly Features
----------------

Name: Activity Stream
Version: 0.0.0
ID: activity-stream@mozilla.org

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Version: 2.0
ID: aushelper@mozilla.org

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Version: 1.1
ID: clicktoplay-rollout@mozilla.org

Name: Firefox Screenshots
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ID: screenshots@mozilla.org

Name: FlyWeb
Version: 1.0.0
ID: flyweb@mozilla.org

Name: Follow-on Search Telemetry
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ID: followonsearch@mozilla.com

Name: Form Autofill
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ID: formautofill@mozilla.org

Name: Multi-process staged rollout
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ID: e10srollout@mozilla.org

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ID: onboarding@mozilla.org

Name: Pocket
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ID: firefox@getpocket.com

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ID: presentation@mozilla.org

Name: Shield Recipe Client
Version: 55
ID: shield-recipe-client@mozilla.org

Name: Web Compat
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ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.0.0
ID: webcompat-reporter@mozilla.org

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Graphics
--------

Features
Compositing: OpenGL
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled
WebGL 1 Driver WSI Info: CGL
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WebGL 2 Driver WSI Info: CGL
WebGL 2 Driver Renderer: ATI Technologies Inc. -- AMD Radeon HD 6970M OpenGL Engine
WebGL 2 Driver Version: 4.1 ATI-1.51.8
WebGL 2 Driver Extensions: GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_mirror_clamp GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
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Audio Backend: audiounit
GPU #1
Active: Yes
Vendor ID: 0x1002
Device ID: 0x6720

Diagnostics
AzureCanvasAccelerated: 1
AzureCanvasBackend: skia
AzureContentBackend: skia
AzureFallbackCanvasBackend: none
TileHeight: 1024
TileWidth: 1024
Decision Log
WEBRENDER:
opt-in by default: WebRender is an opt-in feature




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print.printer__.print_unwriteable_margin_left: 17
print.printer__.print_unwriteable_margin_right: 17
print.printer__.print_unwriteable_margin_top: 17
print.printer_Brother_HL-5370DW_series.print_bgcolor: false
print.printer_Brother_HL-5370DW_series.print_bgimages: false
print.printer_Brother_HL-5370DW_series.print_duplex: -437918235
print.printer_Brother_HL-5370DW_series.print_edge_bottom: 0
print.printer_Brother_HL-5370DW_series.print_edge_left: 0
print.printer_Brother_HL-5370DW_series.print_edge_right: 0
print.printer_Brother_HL-5370DW_series.print_edge_top: 0
print.printer_Brother_HL-5370DW_series.print_evenpages: true
print.printer_Brother_HL-5370DW_series.print_footercenter:
print.printer_Brother_HL-5370DW_series.print_footerleft: &PT
print.printer_Brother_HL-5370DW_series.print_footerright: &D
print.printer_Brother_HL-5370DW_series.print_headercenter:
print.printer_Brother_HL-5370DW_series.print_headerleft: &T
print.printer_Brother_HL-5370DW_series.print_headerright: &U
print.printer_Brother_HL-5370DW_series.print_in_color: true
print.printer_Brother_HL-5370DW_series.print_margin_bottom: 0.5
print.printer_Brother_HL-5370DW_series.print_margin_left: 0.5
print.printer_Brother_HL-5370DW_series.print_margin_right: 0.5
print.printer_Brother_HL-5370DW_series.print_margin_top: 0.5
print.printer_Brother_HL-5370DW_series.print_oddpages: true
print.printer_Brother_HL-5370DW_series.print_orientation: 0
print.printer_Brother_HL-5370DW_series.print_page_delay: 50
print.printer_Brother_HL-5370DW_series.print_paper_data: 0
print.printer_Brother_HL-5370DW_series.print_paper_height: 11.00
print.printer_Brother_HL-5370DW_series.print_paper_name: na-letter
print.printer_Brother_HL-5370DW_series.print_paper_size_unit: 0
print.printer_Brother_HL-5370DW_series.print_paper_width: 8.50
print.printer_Brother_HL-5370DW_series.print_resolution: -437918235
print.printer_Brother_HL-5370DW_series.print_reversed: false
print.printer_Brother_HL-5370DW_series.print_scaling: 1.00
print.printer_Brother_HL-5370DW_series.print_shrink_to_fit: true
print.printer_Brother_HL-5370DW_series.print_to_file: false
print.printer_Brother_HL-5370DW_series.print_unwriteable_margin_bottom: 17
print.printer_Brother_HL-5370DW_series.print_unwriteable_margin_left: 25
print.printer_Brother_HL-5370DW_series.print_unwriteable_margin_right: 25
print.printer_Brother_HL-5370DW_series.print_unwriteable_margin_top: 17
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_bgcolor: false
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_bgimages: false
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_duplex: -437918235
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_edge_bottom: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_edge_left: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_edge_right: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_edge_top: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_evenpages: true
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_footercenter:
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_footerleft: &PT
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_footerright: &D
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_headercenter:
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_headerleft: &T
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_headerright: &U
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_in_color: true
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_margin_bottom: 0.5
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_margin_left: 0.5
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_margin_right: 0.5
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_margin_top: 0.5
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_oddpages: true
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_orientation: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_page_delay: 50
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_paper_data: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_paper_height: 11.00
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_paper_name: na-letter
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_paper_size_unit: 0
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_paper_width: 8.50
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_resolution: -437918235
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_reversed: false
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_scaling: 1.00
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_shrink_to_fit: true
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_to_file: false
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_unwriteable_margin_bottom: 17
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_unwriteable_margin_left: 17
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_unwriteable_margin_right: 17
print.printer_Brother_MFC-9970CDW_[001ba9c0e1d8].print_unwriteable_margin_top: 17
privacy.clearOnShutdown.passwords: false
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.extensions-sessionmanager: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.sessions: false
privacy.donottrackheader.enabled: true
privacy.donottrackheader.value: 1
privacy.history.custom: true
privacy.sanitize.timeSpan: 0
privacy.userContext.ui.enabled: false
security.disable_button.openCertManager: false
security.sandbox.content.tempDirSuffix: {ad70a885-c66f-fd4f-8f09-4cda591ff85c}
security.tls.version.min: 0
services.sync.declinedEngines:
services.sync.engine.bookmarks.validation.lastTime: 1497631286
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1497631283
services.sync.lastSync: Fri Jun 16 2017 17:28:00 GMT-0400 (EDT)
services.sync.numClients: 3
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1495654526

Important Locked Preferences
----------------------------

Places Database
---------------

JavaScript
----------

Incremental GC: true

Accessibility
-------------

Activated: false
Prevent Accessibility: 0

Library Versions
----------------

NSPR
Expected minimum version: 4.15
Version in use: 4.15

NSS
Expected minimum version: 3.32 Beta
Version in use: 3.32 Beta

NSSSMIME
Expected minimum version: 3.32 Beta
Version in use: 3.32 Beta

NSSSSL
Expected minimum version: 3.32 Beta
Version in use: 3.32 Beta

NSSUTIL
Expected minimum version: 3.32 Beta
Version in use: 3.32 Beta

Experimental Features
---------------------

Name: Intersection Observer API
ID: intersection-observer-nightly55@experiments.mozilla.org
Description: Measures the impact of enabling the Intersection Observer API in Firefox
Active: false
End Date: 1491264002635
Homepage:
Branch: enabled

Sandbox
-------

Content Process Sandbox Level: 2
Effective Content Process Sandbox Level: 2
(In reply to Andrew McCreight [:mccr8] from comment #2)
> 5,370.16 MB (100.0%) -- explicit
> ├──4,967.01 MB (92.49%) -- window-objects
> │  ├──4,659.82 MB (86.77%) -- top(https://www.dropbox.com/home/[...])
> │  │  ├──4,522.12 MB (84.21%) -- active
> │  │  │  ├──4,522.00 MB (84.21%) --
> window(https://www.dropbox.com/home/[...])
> │  │  │  │  ├──4,506.68 MB (83.92%) --
> js-compartment(https://www.dropbox.com/home/[...])
> │  │  │  │  │  ├──4,504.59 MB (83.88%) -- classes
> │  │  │  │  │  │  ├──4,446.76 MB (82.80%) -- class(Object)/objects
> │  │  │  │  │  │  │  ├──3,673.00 MB (68.40%) ── gc-heap
> │  │  │  │  │  │  │  └────773.76 MB (14.41%) -- malloc-heap
> │  │  │  │  │  │  │       ├──761.79 MB (14.19%) ── elements/normal
> 
> That's a lot of classes. Does the "minimize memory usage" button in
> about:memory help, then?

Yes.
Whiteboard: [MemShrink]
Sheppy, I think the next thing we'll ask of you are gc / cc logs from about:memory the next time you see the problem.

Standard warning: these can contain personal data in the form of whatever strings are sitting around in your browser, so if you don't feel comfortable posting them here you can send to mccr8 or myself (or neither).
Flags: needinfo?(eshepherd)
If clicking on "minimize memory usage" fixes this, then I don't think GC logs are going to be useful. We need somebody on the GC team to try to reproduce this, and figure out how we're allocating memory in such a way that the GC alloc triggers aren't hit.
Flags: needinfo?(eshepherd) → needinfo?(jcoppeard)
Flags: needinfo?(jcoppeard)
This is pretty bad, Jon can you take a look or redirect another GC person? I seem to recall you fixed something similar recently, I wonder if that covers this?
Flags: needinfo?(jcoppeard)
I had a go at reproducing this but didn't see any elevated memory usage from keeping https://www.dropbox.com/home/... pages open.  I'll try again and see what happens.
erahm/mccr8: I have a gc verbose log for you guys that I'll send you privately shortly.

I got to my computer this morning and Nightly had once again sucked up all available memory. The scary part is this is a brand new top-end iMac with 48 GB of physical RAM in it, instead of the 2011 iMac with 16 GB I was using before. :)

This is a July 7 Nightly.

Activity Monitor reports:

Memory: 92 GB (when I started writing this bug up; it's now up to 96.72)
Compressed memory: 87.99 GB
Real memory: 8.98 GB
Private memory: 6.67 GB
Shared memory: 207.3 MB

Clicking the "info" button on Nightly gives me:

Real Memory Size: 8.76 GB and slowly climbing
Virtual Memory Size: 530.97 GB
Shared Memory Size: 208.8 MB
Private Memory Size: 6.57 GB

I'll be attaching the about:memory verbose and GC verbose logs momentarily.

    
    

    
  
About 2.3GB of the memory usage is window-objects, mostly ranging from 50MB to 90MB, which doesn't seem that high. You just have a lot of tabs open. You have some Expedia ghost windows, which could cause lagginess, but it isn't using that much memory.

resident-peak is 26GB, which is quite a lot, so I guess that's what you were experiencing, but unfortunately does not appear to be captured in the log.

    
    

    
  
Oh, I just noticed that this is from 7-7. This could be a dupe of bug 1379139, which was causing huge memory usage on OSX, and was fixed in the 7-12 Nightly.

    
    

    
  
Well, your initial report is from before that regression landed, but maybe you were hitting one issue, then another.

    
    

    
  
(In reply to Andrew McCreight [:mccr8] from comment #13)
> Well, your initial report is from before that regression landed, but maybe
> you were hitting one issue, then another.

I suspect that's the case. I will go ahead and update and restart then. I'd been leaving it going in case you guys needed other information from me. :)

    
    

    
  
sheppy, how are things looking now?
Flags: needinfo?(jcoppeard) → needinfo?(eshepherd)

    
    

    
  
Sheppy feel free to reopen if your original issue is still happening.
Status: NEW → RESOLVED
Closed: 7 years ago
Flags: needinfo?(eshepherd)
Resolution: --- → INCOMPLETE

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