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gh-124951: Optimize base64 encode & decode for an easy 2-3x speedup [no SIMD] #178412

gh-124951: Optimize base64 encode & decode for an easy 2-3x speedup [no SIMD]

gh-124951: Optimize base64 encode & decode for an easy 2-3x speedup [no SIMD] #178412

Triggered via pull request December 29, 2025 02:09
Status Cancelled
Total duration 14m 7s
Artifacts 1

build.yml

on: pull_request
Change detection  /  Create context from changed files
11s
Change detection / Create context from changed files
Matrix: build-android
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests with AWS-LC
Matrix: Ubuntu SSL tests with OpenSSL
Matrix: build-ubuntu
Matrix: build-windows-msi
Waiting for pending jobs
Matrix: build-windows
Matrix: CIFuzz
Docs  /  Docs
1m 46s
Docs / Docs
Docs  /  Doctest
5m 29s
Docs / Doctest
Docs  /  Check EPUB
1m 54s
Docs / Check EPUB
Check if Autoconf files are up to date
28s
Check if Autoconf files are up to date
Check if generated files are up to date
4m 39s
Check if generated files are up to date
iOS
13m 2s
iOS
WASI  /  build and test
4m 32s
WASI / build and test
Hypothesis tests on Ubuntu
8m 59s
Hypothesis tests on Ubuntu
Cross build Linux
4m 9s
Cross build Linux
All required checks pass
5s
All required checks pass
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Annotations

40 errors and 16 warnings
Docs / Docs
Process completed with exit code 2.
Docs / Check EPUB
Process completed with exit code 1.
Windows / Build and test (arm64)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Windows / Build and test (arm64)
The operation was canceled.
Windows / Build and test (Win32)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Windows / Build and test (Win32)
The operation was canceled.
Windows (free-threading) / Build and test (arm64)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Windows (free-threading) / Build and test (arm64)
The operation was canceled.
Windows / Build and test (x64)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Windows / Build and test (x64)
The operation was canceled.
Android (x86_64)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Android (x86_64)
The operation was canceled.
Windows (free-threading) / Build and test (x64)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Windows (free-threading) / Build and test (x64)
The operation was canceled.
Ubuntu (bolt) / build and test (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Ubuntu (bolt) / build and test (ubuntu-24.04)
The operation was canceled.
Address sanitizer (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Address sanitizer (ubuntu-24.04)
The operation was canceled.
Sanitizers / UBSan
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Sanitizers / UBSan
The operation was canceled.
Ubuntu (free-threading) / build and test (ubuntu-24.04)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Ubuntu (free-threading) / build and test (ubuntu-24.04)
The operation was canceled.
Sanitizers / TSan (free-threading)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Sanitizers / TSan (free-threading)
The operation was canceled.
macOS / build and test (macos-15-intel)
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
macOS / build and test (macos-15-intel)
The operation was canceled.
iOS
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
iOS
The operation was canceled.
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
Tests
Canceling since a higher priority waiting request for Tests-gpshead-opt-base64-cpu exists
All required checks pass
Process completed with exit code 1.
Hypothesis tests on Ubuntu
No files were found with the provided path: /home/runner/work/cpython/cpython-builddir/.hypothesis/examples/. No artifacts will be uploaded.
macOS / build and test (macos-14)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS / build and test (macos-14)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-14)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS / build and test (macos-14)
xz 5.8.1 is already installed and up-to-date. To reinstall 5.8.1, run: brew reinstall xz
macOS / build and test (macos-14)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf
macOS (free-threading) / build and test (macos-14)
Already linked: /opt/homebrew/Cellar/tcl-tk/9.0.3
macOS (free-threading) / build and test (macos-14)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-14)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS (free-threading) / build and test (macos-14)
xz 5.8.1 is already installed and up-to-date. To reinstall 5.8.1, run: brew reinstall xz
macOS (free-threading) / build and test (macos-14)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf
macOS / build and test (macos-15-intel)
Already linked: /usr/local/Cellar/tcl-tk/9.0.3
macOS / build and test (macos-15-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-15-intel)
gdbm 1.26 is already installed and up-to-date. To reinstall 1.26, run: brew reinstall gdbm
macOS / build and test (macos-15-intel)
xz 5.8.1 is already installed and up-to-date. To reinstall 5.8.1, run: brew reinstall xz
macOS / build and test (macos-15-intel)
pkgconf 2.5.1 is already installed and up-to-date. To reinstall 2.5.1, run: brew reinstall pkgconf

Artifacts

Produced during runtime
Name Size Digest
UBSan-logs-default
16.6 KB
sha256:44189798fd910b183958d99192fec485c3cc869f458182a737689cc60dafa8a1