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dawn / dawn / b16cf3f2a96b6aebff5ad4b702182ad6a8c2e7c4
commitb16cf3f2a96b6aebff5ad4b702182ad6a8c2e7c4[log] [tgz]
authorKyle Charbonneau <kylechar@google.com>Wed Mar 05 06:47:59 2025 -0800
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Mar 05 06:47:59 2025 -0800
tree5c35155f3502dc576d925aef755fdf804b0a8213
parent9bc4cf50aca88debc1f2e4c4762f09773f6ee6e7 [diff]
Add SlabAllocator::DeleteEmptySlabs()

SlabAllocator never freed allocated memory until it was deleted
previously. This means for SlabAllocator that grew and then shrunk it
could be holding onto unnecessary memory. Add DeleteEmptySlabs() that
will delete any slabs with zero allocations in them. This will be called
from Device::ReduceMemoryUsage() as a follow up.

Bug: 399826580, 42242057
Change-Id: I0e4d8582ff9a5f440fa67950c595dc2c4a895a50
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/228814
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Kyle Charbonneau <kylechar@google.com>
3 files changed
tree: 5c35155f3502dc576d925aef755fdf804b0a8213
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-tidy
  20. .git-blame-ignore-revs
  21. .gitattributes
  22. .gitignore
  23. .gitmodules
  24. .gn
  25. AUTHORS
  26. BUILD.bazel
  27. BUILD.gn
  28. CMakeLists.txt
  29. CMakeSettings.json
  30. CODE_OF_CONDUCT.md
  31. codereview.settings
  32. CONTRIBUTING.md
  33. CPPLINT.cfg
  34. DEPS
  35. DIR_METADATA
  36. go.mod
  37. go.sum
  38. go_presubmit_support.py
  39. LICENSE
  40. OWNERS
  41. PRESUBMIT.py
  42. README.chromium
  43. README.md
  44. WATCHLISTS
  45. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.