Mike Conley (:mconley) (:⚙️) Reporter
	Description • 7 years ago

Spinning this out from bug 1397092.

Here is a profile from a user when they've got the GPU process enabled. Try to ignore the lack of XUL symbols, and focus on the compositor process:

https://perfht.ml/2jI7dYR

here's a profile from the same user (and presumably the same machine) when the compositor process is disabled:

https://perfht.ml/2jGWPR6

According to jrmuizel, we should never be falling back to WARP. I have no idea how widespread this is.

Here's the user's about:support:

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

Name: Firefox
Version: 57.0a1
Build ID: 20170907100318
Update Channel: nightly
User Agent: Mozilla/5.0 (Windows NT 10.0; rv:57.0) Gecko/20100101 Firefox/57.0
OS: Windows_NT 10.0
Multiprocess Windows: 1/1 (Enabled by default)
Web Content Processes: 3/4
Stylo: true (enabled by default)
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days
---------------------------------

All Crash Reports

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

Name: Activity Stream
Version: 2017.09.01.1439-222d033f
ID: activity-stream@mozilla.org

Name: Application Update Service Helper
Version: 2.0
ID: aushelper@mozilla.org

Name: Click-to-Play staged rollout
Version: 1.2
ID: clicktoplay-rollout@mozilla.org

Name: Firefox Screenshots
Version: 16.1.0
ID: screenshots@mozilla.org

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

Name: Follow-on Search Telemetry
Version: 0.9.3
ID: followonsearch@mozilla.com

Name: Form Autofill
Version: 1.0
ID: formautofill@mozilla.org

Name: Multi-process staged rollout
Version: 3.00
ID: e10srollout@mozilla.org

Name: Photon onboarding
Version: 0.1
ID: onboarding@mozilla.org

Name: Pocket
Version: 1.0.5
ID: firefox@getpocket.com

Name: Presentation
Version: 1.0.0
ID: presentation@mozilla.org

Name: Shield Recipe Client
Version: 65
ID: shield-recipe-client@mozilla.org

Name: Web Compat
Version: 1.1
ID: webcompat@mozilla.org

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

Extensions
----------

Graphics
--------

Features
Compositing: Direct3D 11 (Advanced Layers)
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000dc03) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 1 Driver Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7420G Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 1 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_frag_depth EXT_shader_texture_lod EXT_texture_filter_anisotropic EXT_disjoint_timer_query MOZ_debug OES_element_index_uint OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context MOZ_WEBGL_lose_context MOZ_WEBGL_compressed_texture_s3tc MOZ_WEBGL_depth_texture
WebGL 2 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 000000000000dc03) EGL_VERSION: 1.4 (ANGLE 2.1.0.dec065540d5f) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_flexible_surface_compatibility EGL_ANGLE_stream_producer_d3d_texture_nv12 EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses
WebGL 2 Driver Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7420G Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.dec065540d5f)
WebGL 2 Driver Extensions: GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_dxt1 GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_unpack_subimage GL_KHR_debug GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object
WebGL 2 Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query MOZ_debug OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context MOZ_WEBGL_lose_context MOZ_WEBGL_compressed_texture_s3tc
Direct2D: true
DirectWrite: true (10.0.16251.0)
GPU #1
Active: Yes
Description: AMD Radeon HD 7420G
Driver Version: 15.200.1062.1002
Driver Date: 3-01-2016
Drivers: aticfx32 aticfx32 aticfx32 atiumdag atidxx32 atiumdva
Subsys ID: 3564103c
RAM: 1024

Diagnostics
AzureCanvasAccelerated: 0
AzureCanvasBackend: Direct2D 1.1
AzureCanvasBackend (UI Process): skia
AzureContentBackend: Direct2D 1.1
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): cairo
GPUProcessPid: 6072
GPUProcess: Terminate GPU Process
Device Reset: Trigger Device Reset
Decision Log
WEBRENDER:
opt-in by default: WebRender is an opt-in feature




Media
-----

Audio Backend: wasapi
Max Channels: 2
Preferred Channel Layout: stereo
Preferred Sample Rate: 48000
Output Devices
Name: Group
Speakers (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_111D&DEV_7605&SUBSYS_103C3564&REV_1001\4&101cf511&0&0001
Internal AUX Jack (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_111D&DEV_7605&SUBSYS_103C3564&REV_1001\4&101cf511&0&0001
AMD HDMI Output (AMD High Definition Audio Device): HDAUDIO\FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100&REV_1002\4&c5953c7&0&0001
Input Devices
Name: Group
Microphone (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_111D&DEV_7605&SUBSYS_103C3564&REV_1001\4&101cf511&0&0001
Microphone (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_111D&DEV_7605&SUBSYS_103C3564&REV_1001\4&101cf511&0&0001
AMD HDMI Output (AMD High Definition Audio Device): HDAUDIO\FUNC_01&VEN_1002&DEV_AA01&SUBSYS_00AA0100&REV_1002\4&c5953c7&0&0001

Important Modified Preferences
------------------------------

browser.cache.disk.capacity: 0
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.smart_size.enabled: false
browser.cache.disk.smart_size.first_run: false
browser.cache.frecency_experiment: 4
browser.download.useDownloadDir: false
browser.places.importBookmarksHTML: false
browser.places.smartBookmarksVersion: 8
browser.sessionstore.upgradeBackup.latestBuildID: 20170907100318
browser.startup.homepage_override.buildID: 20170907100318
browser.startup.homepage_override.mstone: 57.0a1
browser.urlbar.lastSuggestionsPromptDate: 20170907
browser.urlbar.timesBeforeHidingSuggestionsHint: 0
dom.forms.autocomplete.formautofill: true
extensions.lastAppVersion: 57.0a1
layers.mlgpu.sanity-test-failed: false
media.gmp-gmpopenh264.abi: x86-msvc-x86
media.gmp-gmpopenh264.lastUpdate: 1504794579
media.gmp-gmpopenh264.version: 1.6
media.gmp-manager.buildID: 20170907100318
media.gmp-manager.lastCheck: 1504800662
media.gmp-widevinecdm.abi: x86-msvc-x86
media.gmp-widevinecdm.lastUpdate: 1504794588
media.gmp-widevinecdm.version: 1.4.8.1008
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
network.cookie.prefsMigrated: true
network.predictor.cleaned-up: true
places.history.expiration.transient_current_max_pages: 104858
plugin.disable_full_page_plugin_for_types: application/pdf
security.sandbox.content.tempDirSuffix: {b1ef002c-5f77-4753-b341-3e3a02789513}
services.sync.engine.addresses.available: true
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

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

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

JavaScript
----------

Incremental GC: true

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

Activated: false
Prevent Accessibility: 0
Accessible Handler Used: false
Accessibility Instantiator:

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

NSPR
Expected minimum version: 4.17 Beta
Version in use: 4.17 Beta

NSS
Expected minimum version: 3.33 Beta
Version in use: 3.33 Beta

NSSSMIME
Expected minimum version: 3.33 Beta
Version in use: 3.33 Beta

NSSSSL
Expected minimum version: 3.33 Beta
Version in use: 3.33 Beta

NSSUTIL
Expected minimum version: 3.33 Beta
Version in use: 3.33 Beta

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

Sandbox
-------

Content Process Sandbox Level: 4
Effective Content Process Sandbox Level: 4

	David Anderson [:dvander] - inactive, e-mail if emergency
	Comment 1 • 7 years ago

That is pretty bizarre. I'm assuming the user does not have layers.d3d11.force-warp set to true?

Either D3D11 is falling back on its own accord or somehow the GPU process is seeing that pref as true. Would a diagnostic patch help?

	Mike Conley (:mconley) (:⚙️) Reporter
	Comment 2 • 7 years ago

(In reply to David Anderson [:dvander] from comment #1)
> That is pretty bizarre. I'm assuming the user does not have
> layers.d3d11.force-warp set to true?

I can ask.

> 
> Either D3D11 is falling back on its own accord or somehow the GPU process is
> seeing that pref as true. Would a diagnostic patch help?

Sure, I can try to get them to run it.

Also note that in the about:support, the Device and Vendor ID's are not listed for the graphics card. I'm not sure if that's relevant, but it got jrmuizel's attention.

	Milan Sreckovic [:milan] (needinfo for best results)
	Comment 3 • 7 years ago

If we've somehow regressed this in 57, we should fix it.  If it's an ongoing thing for a configuration or two, not worried.
Mike, can you also ask for a mozregression range? :)

	Mike Conley (:mconley) (:⚙️) Reporter
	Comment 4 • 7 years ago

(In reply to Milan Sreckovic [:milan] from comment #3)

Possibly. Is there a way to determine that WARP is being used by the compositor process without dumping a profile?

	Milan Sreckovic [:milan] (needinfo for best results)
	Comment 5 • 7 years ago

The about:support is really suspect.  We're only allowing WARP with a force preference, and when we force it, we don't allow D2D1.1 with WARP, forced or not.  about:support above shows D2D 1.1 and D3D11, not warp.

If warp is forced, we record that in App Notes (but I don't know if you can get to that without crashing :).  I thought there was telemetry as well, but I can't now find it.

	Mike Conley (:mconley) (:⚙️) Reporter
	Comment 6 • 7 years ago

(In reply to Milan Sreckovic [:milan] from comment #5)
> 
> If warp is forced, we record that in App Notes (but I don't know if you can
> get to that without crashing :).  I thought there was telemetry as well, but
> I can't now find it.

Doesn't look like we're forcing it enabled, at least according to this crash report from the user: https://crash-stats.mozilla.com/report/index/9a853e1e-7cdb-4dc2-9682-c41af0170916#tab-telemetryenvironment

and the Telemetry Environment suggests that WARP is disabled too.

But those profiles are coming from somewhere.

	Matt Woodrow (:mattwoodrow)
	Comment 7 • 6 years ago

This problem has showed up again, at https://bugzilla.mozilla.org/show_bug.cgi?id=1446667#c30

ni? davidb in case we want to try increase the priority of this bug.

	David Bolter [:davidb] (NeedInfo me for attention)
	Comment 8 • 6 years ago

Yeah, would be good to know how WARP shows up. Hopefully Jason can try your bug 1446667 comment 30...

	saproeno
	Comment 9 • 6 years ago

(In reply to David Bolter [:davidb] (NeedInfo me for attention) from comment #8)
> Yeah, would be good to know how WARP shows up. Hopefully Jason can try your
> bug 1446667 comment 30...

any fix or tests being run to find cause?

	David Bolter [:davidb] (NeedInfo me for attention)
	Comment 10 • 6 years ago

I'm not aware of any next steps in this bug or bug 1446667. It is hard to know how to prioritize this bug.