Max tcp_socket_pool inside a single tab
Reported by
repetto....@gmail.com,
Jan 10 2018
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36 Example URL: Steps to reproduce the problem: 1. create a table with 4 rows and 4 columns 2. inside every cell put a <video> 3. set <video> source to a differente http fragmented mp4 stream example: http://127.0.0.1:<port>/stream. Each stream has a different port 4. play videos What is the expected behavior? I'd like to have 16 live stream video playing What went wrong? only 10 videos play. after the 10'th video the browser doesn' t open sockets (chrome://net-internals/#sockets). Did this work before? N/A Is it a problem with Flash or HTML5? HTML5 Does this work in other browsers? Yes Chrome version: 63.0.3239.132 Channel: stable OS Version: 6.1 (Windows 7, Windows Server 2008 R2) Flash Version: Shockwave Flash 28.0 r0 Contents of chrome://gpu: Note: To properly save this page, select the "Webpage, Complete" option in the Save File dialog. Graphics Feature Status Canvas: Hardware accelerated CheckerImaging: Enabled Flash: Hardware accelerated Flash Stage3D: Hardware accelerated Flash Stage3D Baseline profile: Hardware accelerated Compositing: Hardware accelerated Multiple Raster Threads: Enabled Native GpuMemoryBuffers: Software only. Hardware acceleration disabled Rasterization: Software only, hardware acceleration unavailable Video Decode: Hardware accelerated WebGL: Hardware accelerated WebGL2: Hardware accelerated Driver Bug Workarounds clear_uniforms_before_first_program_use decode_encode_srgb_for_generatemipmap disable_accelerated_vpx_decode disable_direct_composition disable_discard_framebuffer disable_dxgi_zero_copy_video disable_framebuffer_cmaa disable_nv12_dxgi_video exit_on_context_lost force_cube_complete scalarize_vec_and_mat_constructor_args texsubimage_faster_than_teximage Problems Detected GPU rasterization should only be enabled on NVIDIA and Intel DX11+, and AMD RX-R2 GPUs for now.: 643850 Disabled Features: gpu_rasterization Some drivers are unable to reset the D3D device in the GPU process sandbox Applied Workarounds: exit_on_context_lost TexSubImage is faster for full uploads on ANGLE Applied Workarounds: texsubimage_faster_than_teximage Clear uniforms before first program use on all platforms: 124764, 349137 Applied Workarounds: clear_uniforms_before_first_program_use Always rewrite vec/mat constructors to be consistent: 398694 Applied Workarounds: scalarize_vec_and_mat_constructor_args ANGLE crash on glReadPixels from incomplete cube map texture: 518889 Applied Workarounds: force_cube_complete Framebuffer discarding can hurt performance on non-tilers: 570897 Applied Workarounds: disable_discard_framebuffer Direct composition flashes black initially on Win <10: 588588 Applied Workarounds: disable_direct_composition Zero copy DXGI video hangs on shutdown on Win < 8.1: 621190 Applied Workarounds: disable_dxgi_zero_copy_video Limited enabling of Chromium GL_INTEL_framebuffer_CMAA: 535198 Applied Workarounds: disable_framebuffer_cmaa Disable KHR_blend_equation_advanced until cc shaders are updated: 661715 Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent) Decode and Encode before generateMipmap for srgb format textures on Windows: 634519 Applied Workarounds: decode_encode_srgb_for_generatemipmap Zero-copy DXGI video hangs or displays incorrect colors on AMD drivers: 623029 Applied Workarounds: disable_dxgi_zero_copy_video NV12 DXGI video displays incorrect colors on older AMD drivers: 644293 Applied Workarounds: disable_nv12_dxgi_video VPx decoding isn't supported well before Windows 10 creators update.: 616318, 667532 Applied Workarounds: disable_accelerated_vpx_decode Native GpuMemoryBuffers have been disabled, either via about:flags or command line. Disabled Features: native_gpu_memory_buffers Version Information Data exported 1/10/2018, 2:55:25 PM Chrome version Chrome/62.0.3202.0 Operating system Windows NT 6.1.7601 SP1 Software rendering list version 13.12 Driver bug list version 10.28 ANGLE commit id 77d4d4da9024 2D graphics backend Skia/62 332b55954f92d51d60158d8142c68eb9c3ca296f- Command Line "C:\Users\repettod\AppData\Local\Chromium\Application\chrome.exe" --flag-switches-begin --flag-switches-end Driver Information Initialization time 79 In-process GPU false Passthrough Command Decoder false Supports overlays false Sandboxed false GPU0 VENDOR = 0x1002, DEVICE= 0x68f9 Optimus false Optimus false AMD switchable false Desktop compositing Aero Glass Diagonal Monitor Size of \\.\DISPLAY2 23.9" Diagonal Monitor Size of \\.\DISPLAY1 21.2" Driver vendor Advanced Micro Devices, Inc. Driver version 15.200.1062.1004 Driver date 8-3-2015 Pixel shader version 5.0 Vertex shader version 5.0 Max. MSAA samples 4 Machine model name Machine model version GL_VENDOR Google Inc. GL_RENDERER ANGLE (AMD Radeon HD 6350 Direct3D11 vs_5_0 ps_5_0) GL_VERSION OpenGL ES 3.0 (ANGLE 2.1.0.77d4d4da9024) GL_EXTENSIONS GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_multiview GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_robust_resource_initialization 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_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba 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_compression_s3tc_srgb 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_surfaceless_context 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 Disabled Extensions GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent Window system binding vendor Google Inc. (adapter LUID: 0000000000008c0d) Window system binding version 1.4 (ANGLE 2.1.0.77d4d4da9024) Window system binding 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_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_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control Direct rendering Yes Reset notification strategy 0x8252 GPU process crash count 0 Compositor Information Tile Update Mode One-copy Partial Raster Enabled GpuMemoryBuffers Status ATC Software only ATCIA Software only DXT1 Software only DXT5 Software only ETC1 Software only R_8 Software only R_16 Software only RG_88 Software only BGR_565 Software only RGBA_4444 Software only RGBX_8888 Software only RGBA_8888 Software only BGRX_8888 Software only BGRA_8888 Software only RGBA_F16 Software only YVU_420 Software only YUV_420_BIPLANAR Software only UYVY_422 Software only Diagnostics 0 b3DAccelerationEnabled true b3DAccelerationExists true bAGPEnabled true bAGPExistenceValid true bAGPExists true bCanRenderWindow true bDDAccelerationEnabled true bDriverBeta false bDriverDebug false bDriverSigned false bDriverSignedValid false bNoHardware false dwBpp 32 dwDDIVersion 11 dwHeight 1200 dwRefreshRate 60 dwWHQLLevel 0 dwWidth 1600 iAdapter 0 lDriverSize 1445224 lMiniVddSize 0 szAGPStatusEnglish Enabled szAGPStatusLocalized Enabled szChipType AMD Radeon Graphics Processor (0x68F9) szD3DStatusEnglish Enabled szD3DStatusLocalized Enabled szDACType Internal DAC(400MHz) szDDIVersionEnglish 11 szDDIVersionLocalized 11 szDDStatusEnglish Enabled szDDStatusLocalized Enabled szDXVAHDEnglish Not Supported szDXVAModes ModeMPEG2_A ModeMPEG2_C szDescription AMD Radeon HD 6350 szDeviceId 0x68F9 szDeviceIdentifier {D7B71EE2-2BB9-11CF-F076-2C01BEC2C535} szDeviceName \\.\DISPLAY1 szDisplayMemoryEnglish 215 MB szDisplayMemoryLocalized 215 MB szDisplayModeEnglish 1600 x 1200 (32 bit) (60Hz) szDisplayModeLocalized 1600 x 1200 (32 bit) (60Hz) szDriverAssemblyVersion 15.200.1062.1004 szDriverAttributes Final Retail szDriverDateEnglish 8/4/2015 07:28:34 szDriverDateLocalized 04/08/2015 07:28:34 szDriverLanguageEnglish English szDriverLanguageLocalized English szDriverModelEnglish WDDM 1.1 szDriverModelLocalized WDDM 1.1 szDriverName aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll szDriverNodeStrongName oem5.inf:ATI.Mfg.NTamd64.6.1:ati2mtag_EvergreenC:15.200.1062.1004:pci\ven_1002&dev_68f9&subsys_2126103c szDriverSignDate szDriverVersion 8.17.0010.1404 szKeyDeviceID Enum\PCI\VEN_1002&DEV_68F9&SUBSYS_2126103C&REV_00 szKeyDeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{BC0A1378-0C60-4CC3-9616-7CC833C4B651}\0000 szManufacturer Advanced Micro Devices, Inc. szMiniVdd n/a szMiniVddDateEnglish n/a szMiniVddDateLocalized n/a szMonitorMaxRes szMonitorName Generic PnP Monitor szNotesEnglish No problems found. szNotesLocalized No problems found. szOverlayEnglish Not Supported szRankOfInstalledDriver 00E60001 szRegHelpText szRevision szRevisionId 0x0000 szSubSysId 0x2126103C szTestResultD3D7English Not run szTestResultD3D7Localized Not run szTestResultD3D8English Not run szTestResultD3D8Localized Not run szTestResultD3D9English Not run szTestResultD3D9Localized Not run szTestResultDDEnglish Not run szTestResultDDLocalized Not run szVdd n/a szVendorId 0x1002 1 b3DAccelerationEnabled true b3DAccelerationExists true bAGPEnabled true bAGPExistenceValid true bAGPExists true bCanRenderWindow true bDDAccelerationEnabled true bDriverBeta false bDriverDebug false bDriverSigned false bDriverSignedValid false bNoHardware false dwBpp 32 dwDDIVersion 11 dwHeight 1080 dwRefreshRate 60 dwWHQLLevel 0 dwWidth 1920 iAdapter 1 lDriverSize 1445224 lMiniVddSize 0 szAGPStatusEnglish Enabled szAGPStatusLocalized Enabled szChipType AMD Radeon Graphics Processor (0x68F9) szD3DStatusEnglish Enabled szD3DStatusLocalized Enabled szDACType Internal DAC(400MHz) szDDIVersionEnglish 11 szDDIVersionLocalized 11 szDDStatusEnglish Enabled szDDStatusLocalized Enabled szDXVAHDEnglish Not Supported szDXVAModes ModeMPEG2_A ModeMPEG2_C szDescription AMD Radeon HD 6350 szDeviceId 0x68F9 szDeviceIdentifier {D7B71EE2-2BB9-11CF-F076-2C01BEC2C535} szDeviceName \\.\DISPLAY2 szDisplayMemoryEnglish 215 MB szDisplayMemoryLocalized 215 MB szDisplayModeEnglish 1920 x 1080 (32 bit) (60Hz) szDisplayModeLocalized 1920 x 1080 (32 bit) (60Hz) szDriverAssemblyVersion 15.200.1062.1004 szDriverAttributes Final Retail szDriverDateEnglish 8/4/2015 07:28:34 szDriverDateLocalized 04/08/2015 07:28:34 szDriverLanguageEnglish English szDriverLanguageLocalized English szDriverModelEnglish WDDM 1.1 szDriverModelLocalized WDDM 1.1 szDriverName aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll szDriverNodeStrongName oem5.inf:ATI.Mfg.NTamd64.6.1:ati2mtag_EvergreenC:15.200.1062.1004:pci\ven_1002&dev_68f9&subsys_2126103c szDriverSignDate szDriverVersion 8.17.0010.1404 szKeyDeviceID Enum\PCI\VEN_1002&DEV_68F9&SUBSYS_2126103C&REV_00 szKeyDeviceKey \Registry\Machine\System\CurrentControlSet\Control\Video\{BC0A1378-0C60-4CC3-9616-7CC833C4B651}\0001 szManufacturer Advanced Micro Devices, Inc. szMiniVdd n/a szMiniVddDateEnglish n/a szMiniVddDateLocalized n/a szMonitorMaxRes szMonitorName Generic PnP Monitor szNotesEnglish No problems found. szNotesLocalized No problems found. szOverlayEnglish Not Supported szRankOfInstalledDriver 00E60001 szRegHelpText szRevision szRevisionId 0x0000 szSubSysId 0x2126103C szTestResultD3D7English Not run szTestResultD3D7Localized Not run szTestResultD3D8English Not run szTestResultD3D8Localized Not run szTestResultD3D9English Not run szTestResultD3D9Localized Not run szTestResultDDEnglish Not run szTestResultDDLocalized Not run szVdd n/a szVendorId 0x1002 Log Messages [5620:14284:0110/104812.608:ERROR:gles2_cmd_decoder.cc(17925)] : [.DisplayCompositor-00000000105942C0]GL ERROR :GL_INVALID_OPERATION : glCreateAndConsumeTextureCHROMIUM: invalid mailbox name [5620:14284:0110/104812.608:ERROR:gles2_cmd_decoder.cc(9893)] : [.DisplayCompositor-00000000105942C0]RENDER WARNING: texture bound to texture unit 0 is not renderable. It maybe non-power-of-2 and have incompatible texture filtering. GpuProcessHostUIShim: The GPU process exited normally. Everything is okay. The problem exists only with live http streams. No problem found with mp4 files. I need to show a 5x5 <video> matrix
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Jan 11 2018
Thanks for filing the issue! @Reporter: Could you please share a sample test file/URL which helps us to triage the issue further in a better way.
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Jan 12 2018
Attached you can find a zip file containings: 1) Sc2HttpStreamServer.exe : application (under development, Visual Studio 2017 .NET framework 4.6) that convert rtsp live streams into http streams (used by <video>) 2) start.bat : batch file showing how to use the application. 3) Matrix.html: tipical scenario using 16 <video> 4) First part of dlls.
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Jan 12 2018
Here, the last part of dll. Thanks, for your attention.
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Jan 12 2018
Thank you for providing more feedback. Adding requester "vamshi.kommuri@techmahindra.com" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jan 15 2018
Tested the issue on Win-10 and win-7 using chrome reported version #63.0.3239.132. Attached a screen cast for reference. Following are the steps followed to reproduce the issue. ------------ 1. Extracted release.zip and tmp.zip and kept those in one folder. 2. Opened matrix.html 3. 15 videos showed up but none of them played. repetto.davide@- Could you please check the screen cast and please let us know if anything else need to be done from our end. Thanks...!!
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Jan 15 2018
I'm sorry for misunderstanding, I wasn't too clear in my previous comment. 1) Put the content of tmp.zip file in the same directory of the Realease.zip content. 2) You've got to modify start.bat file replacing rtsp url with one reachable on internet (ex: rtsp://184.72.239.149/vod/mp4:BigBuckBunny_175k.mov). At the moment I'm not able to share my rtsp url due to local network restiction. 3) Run star.bat in oreder to convert a single rtsp stream into 16 different http stream 4) Open matrix.html and start videos Thanks.
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Jan 15 2018
Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jan 18 2018
Tested this issue on reported version 63.0.3239.132 with latest start.bat file and unable to reproduce this issue with below steps. Attaching screencast for reference. 1. Extracted both tmp.zip and Release.zip, Placed contents of tmp folder in release folder. 2. Replaces new start.bat file attached in comment#8, Clicked on start.bat file and there opened many Info windows 3. Opened terminal and pressed key from keyboard as prompted >> All Info windows are closed. Now clicked on Matrix html file 4. Clicked on play buttons and no video is played. @Reporter: Please check the video and let us know if we miss anything. This would help in further triaging of the issue. Thanks!
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Jan 18 2018
Don't close start.bat. You have to keep running all started SC2HttpStreamServer processes before launching Matrix.html. Press key on start.bat to stop conversion.
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Jan 18 2018
Thank you for providing more feedback. Adding requester "sc00335628@techmahindra.com" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Jan 18 2018
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Jan 18 2018
Pretty sure this is working as intended, as we have a per-tab(ish) limit of 10 ongoing requests at a time. This may be changing in the near future though. +rdsmith for resource scheduling plans with the new network service.
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Jan 19 2018
Yep, this is WAI; see https://cs.chromium.org/chromium/src/content/browser/loader/resource_scheduler.cc?sq=package:chromium&l=795. While I'd like to see a from-scratch rethink of how priorities and scheduling of requests are done, I don't expect that to happen as part of servicification. I could imagine if this use case was considered important enough we might find tweaks to the scheduling algorithms to support it, but AFAIK, the use case you describe isn't high priority for Chrome. +pmeenan, yhirano FTI (and in case Patrick knows something I don't about use case priorities). Sorry :-{.
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Jan 19 2018
One extremely hacky workaround is that ResourceScheduler considers out-of-process iframes as separate "tabs" for the time being. If that continues to be the case this issue could be circumvented by: 1. Enabling Strict site isolation (--site-per-process) 2. Hosting 10 videos per cross-origin iframe
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Jan 19 2018
Huh. That's interesting. yhirano@: One of my big concerns about splitting the non-body-loading portion of ResourceScheduler into the renderer & network stack was the transition from per-tab to per-frame; if this "natural experiment" isn't causing any problems, that probably means the per-tab stuff could be pulled back into the renderer and made per-frame, which would make refactoring the scheduling logic much simpler.
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Jan 22 2018
Thanks for your attention. Just a question: is the limit of 10 requests valid for webRtc Connection?
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Jan 22 2018
WebRTC shouldn't go through the resource scheduler - it is just for URL fetches. I wouldn't be opposed to having localhost traffic bypass the concurrent download limit. It is there to reduce bandwidth contention which isn't a problem for localhost traffic. Once net servicification is in place we're expecting to make the logic somewhat more dynamic and adaptable as well since the 10 limit is somewhat arbitrary and tuned for sort of average connection characteristics. AFAIK we're not planning on keeping a pending request limit (long-term at least) in the renderer and the plan is to pass the requests through and let the netwoking stack schedule requests at the connection level as the connection characteristics permit (across all renderers). The bit that we'll keep in the renderer is the logic to delay low-priority requests while we are still loading the render-blocking resources. |
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Comment 1 by krajshree@chromium.org
, Jan 10 2018