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gh-158897: Optimize io.BufferedReader.readline() by calling memchr() #212557

gh-158897: Optimize io.BufferedReader.readline() by calling memchr()

gh-158897: Optimize io.BufferedReader.readline() by calling memchr() #212557

Triggered via pull request October 7, 2026 12:45
Status Success
Total duration 31m 47s
Artifacts 3

build.yml

on: pull_request
Change detection  /  Create context from changed files
15s
Change detection / Create context from changed files
Matrix: Address sanitizer
Matrix: build-macos
Matrix: build-san
Matrix: Ubuntu SSL tests
Matrix: build-ubuntu
Matrix: build-windows
Matrix: cifuzz
Docs  /  Doctest
7m 30s
Docs / Doctest
Docs  /  Check EPUB
2m 17s
Docs / Check EPUB
Check if Autoconf files are up to date
24s
Check if Autoconf files are up to date
Check if generated files are up to date
5m 0s
Check if generated files are up to date
C API Docs  /  Check if all C APIs are documented
14s
C API Docs / Check if all C APIs are documented
Ubuntu (installed)  /  build, install and test
6m 19s
Ubuntu (installed) / build, install and test
iOS
25m 42s
iOS
Emscripten  /  build and test
20m 4s
Emscripten / build and test
WASI  /  build and test
4m 19s
WASI / build and test
Hypothesis tests on Ubuntu
10m 36s
Hypothesis tests on Ubuntu
Lazy imports enabled  /  Run Tests with lazy_imports=all
9m 49s
Lazy imports enabled / Run Tests with lazy_imports=all
Cross build Linux
4m 52s
Cross build Linux
Matrix: build-android
Docs  /  ...  /  Check for removed HTML IDs
2m 41s
Docs / Check for removed HTML IDs / Check for removed HTML IDs
All required checks pass
3s
All required checks pass
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Annotations

2 errors, 4 warnings, and 13 notices
Docs / Check EPUB
Process completed with exit code 1.
Docs / Docs
Process completed with exit code 2.
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-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS (free-threading) / build and test (macos-26)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
macOS / build and test (macos-26-intel)
`$HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK` is set: not checking for outdated dependents or dependents with broken linkage!
Change detection / Create context from changed files
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
C API Docs / Check if all C APIs are documented
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check EPUB
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Docs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Docs / Check for removed HTML IDs / Check for removed HTML IDs
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
Android (aarch64)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
macOS (free-threading) / build and test (macos-26)
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
CIFuzz / cpython3 (address)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
CIFuzz / cpython3 (undefined)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
CIFuzz / cpython3 (memory)
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"
iOS
Due to capacity constraints, jobs targeting macOS arm64 runners may experience longer queue times.
All required checks pass
"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

Artifacts

Produced during runtime
Name Size Digest
MSan-logs-default
209 Bytes
sha256:33dcd73123c2554e34a36873de622023aca9fb5ab2043e3f794f611342448f44
UBSan-logs-default
1.5 KB
sha256:a7787a97073915cfb01d12f2d8eb37cfbd654d1ee3f4f1f999e757c5661ed0fb
html-ids-head.json.gz
130 KB
sha256:acf576f89941043cd32d5c45f7b83a213e9a8df72a4bbc9fa6f46c8f7e074ff7