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chromium / chromium / src / c8a5ff63b1526ff9af3df49c8fd16d8ba054a060
commitc8a5ff63b1526ff9af3df49c8fd16d8ba054a060[log] [tgz]
authorNingxin Hu <ningxin.hu@intel.com>Fri Aug 04 03:53:28 2023
committerChromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com>Fri Aug 04 03:53:28 2023
treefb635bd30fd2a108e6778248f74ca22c1e454d8f
parent8c9cc5bc61bda093464b678869b779162459734f [diff]
WebNN: Share the Adapter with multiple contexts on the same adapter

This CL addresses a TODO of CL-4647885 [1] that recommends multiple
contexts should share one command queue when they are on the same
adapter for better concurrency.

To implement this optimization, this CL moves the
`dml::Adapter::Create()` method to private and adds
`dml::Adapter::GetInstance()` method which only creates a new instance
if the instance doesn’t exist for a physical adapter.

`WebNNContextProviderImpl` would call `dml::Adapter::GetInstance()` when
creating a context. `dml::ContextImpl` is introduced to keep a reference
to the `dml::Adapter` instance and pass the queue and device to
`dml::GraphImpl` when creating the graph. The `Adapter` instance is
shared and reference-counted by all `dml::ContextImpl` and it is
released when all references are destroyed.

At the current stage, only the default `Adapter` for the adapter queried
from ANGLE is supported. In the future, the `Adapter` instance will be
created based on context options.

[1]: https://chromium-review.googlesource.com/c/chromium/src/+/4647885/comment/b24ff17b_69849b90/

Bug: 1273291
Change-Id: I8acf4af3ef23f514c83c34b84368eb9f4bf4de73
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4733931
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Commit-Queue: ningxin hu <ningxin.hu@intel.com>
Cr-Commit-Position: refs/heads/main@{#1179421}
24 files changed
tree: fb635bd30fd2a108e6778248f74ca22c1e454d8f
  1. android_webview/
  2. apps/
  3. ash/
  4. base/
  5. build/
  6. build_overrides/
  7. buildtools/
  8. cc/
  9. chrome/
  10. chromecast/
  11. chromeos/
  12. codelabs/
  13. components/
  14. content/
  15. courgette/
  16. crypto/
  17. dbus/
  18. device/
  19. docs/
  20. extensions/
  21. fuchsia_web/
  22. gin/
  23. google_apis/
  24. google_update/
  25. gpu/
  26. headless/
  27. infra/
  28. ios/
  29. ipc/
  30. media/
  31. mojo/
  32. native_client_sdk/
  33. net/
  34. pdf/
  35. ppapi/
  36. printing/
  37. remoting/
  38. rlz/
  39. sandbox/
  40. services/
  41. skia/
  42. sql/
  43. storage/
  44. styleguide/
  45. testing/
  46. third_party/
  47. tools/
  48. ui/
  49. url/
  50. weblayer/
  51. .clang-format
  52. .clang-tidy
  53. .eslintrc.js
  54. .git-blame-ignore-revs
  55. .gitattributes
  56. .gitignore
  57. .gn
  58. .mailmap
  59. .rustfmt.toml
  60. .vpython3
  61. .yapfignore
  62. ATL_OWNERS
  63. AUTHORS
  64. BUILD.gn
  65. CODE_OF_CONDUCT.md
  66. codereview.settings
  67. DEPS
  68. DIR_METADATA
  69. LICENSE
  70. LICENSE.chromium_os
  71. OWNERS
  72. PRESUBMIT.py
  73. PRESUBMIT_test.py
  74. PRESUBMIT_test_mocks.py
  75. README.md
  76. WATCHLISTS
README.md

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