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caching-build.yml
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name: build-and-test
on:
# only runs on main, hourly cache update used by all branches
schedule:
- cron: "0 * * * *"
push:
pull_request:
merge_group:
jobs:
lint:
runs-on: ubuntu-24.04
steps:
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- name: Install deps
run: |
curl https://sh.rustup.rs -sSf | RUSTUP_INIT_SKIP_PATH_CHECK=yes sh -s -- -y
rustup show # installs the toolchain from rust-toolchain.toml
export PATH="~/.cargo/bin:$PATH"
- uses: actions/checkout@v4
# Lint code
- run: cargo fmt
- run: git diff --exit-code
build-kernel:
runs-on: [ "self-hosted", "linux", "x64" ]
steps:
# Uncomment these if reverting to GitHub hosted runners
# - name: Install Nix
# uses: DeterminateSystems/nix-installer-action@main
# Make very basic dependencies available in PATH
- name: Install basic dependencies
run: |
nix profile install nixpkgs#{git,openssl,gawk,gnutar,zstd}
echo "$HOME/.nix-profile/bin" >> $GITHUB_PATH
# get latest head commit of sched_ext for-next
- run: echo "SCHED_EXT_KERNEL_COMMIT=$(git ls-remote https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git heads/for-6.13 | awk '{print $1}')" >> $GITHUB_ENV
# check for cached kernel without downloading
- name: Cache Kernel
id: cache-kernel
uses: actions/cache@v4
with:
path: |
linux/arch/x86/boot/bzImage
linux/usr/include
linux/**/*.h
key: kernel-build-${{ env.SCHED_EXT_KERNEL_COMMIT }}-7
lookup-only: true
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
uses: actions/checkout@v4
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
uses: nicknovitski/nix-develop@v1
with:
arguments: ./.github/workflows#build-kernel
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: Clone Kernel
uses: cytopia/[email protected]
with:
retries: 10
pause: 18
command: git clone --single-branch -b for-6.13 --depth 1 https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git linux
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: Select correct commit for cache hash
run: |
cd linux
git switch --detach ${{ env.SCHED_EXT_KERNEL_COMMIT }}
git log -1 --pretty=format:"%h %ad %s" --date=short
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
# Build a minimal kernel (with sched-ext enabled) using virtme-ng
run: cd linux && virtme-ng -v --build --config ../.github/workflows/sched-ext.config
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
# Generate kernel headers
run: cd linux && make headers
integration-test:
runs-on: ubuntu-24.04
needs: build-kernel
strategy:
matrix:
scheduler: [ scx_bpfland, scx_lavd, scx_layered, scx_rlfifo, scx_rustland, scx_rusty ]
fail-fast: false
steps:
- uses: actions/checkout@v4
- run: echo "SCHED_EXT_KERNEL_COMMIT=$(git ls-remote https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git heads/for-6.13 | awk '{print $1}')" >> $GITHUB_ENV
# use cached kernel if available, create after job if not
- name: Cache Kernel
id: cache-kernel
uses: actions/cache@v4
with:
path: |
linux/arch/x86/boot/bzImage
linux/usr/include
linux/**/*.h
key: kernel-build-${{ env.SCHED_EXT_KERNEL_COMMIT }}-7
# need to re-run job when kernel head changes between build and test running.
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: exit if cache stale
run: exit -1
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- uses: Swatinem/rust-cache@v2
with:
key: ${{ matrix.scheduler }}
prefix-key: "4"
- uses: ./.github/actions/install-deps-action
# cache virtiofsd (goes away w/ 24.04)
- name: Cache virtiofsd
id: cache-virtiofsd
uses: actions/cache@v4
with:
path: |
/usr/lib/virtiofsd
key: virtiofsd-binary
- if: ${{ steps.cache-virtiofsd.outputs.cache-hit != 'true' }}
run: cargo install virtiofsd && sudo cp -a ~/.cargo/bin/virtiofsd /usr/lib/
# veristat
- run: wget https://github.com/libbpf/veristat/releases/download/v0.3.2/veristat-v0.3.2-amd64.tar.gz
- run: tar -xvf veristat-v0.3.2-amd64.tar.gz && sudo cp veristat /usr/bin/
- run: sudo chmod +x /usr/bin/veristat && sudo chmod 755 /usr/bin/veristat
# The actual build:
- run: meson setup build -Dkernel=../linux/arch/x86/boot/bzImage -Dkernel_headers=../linux -Denable_stress=true -Dvng_rw_mount=true
- run: meson compile -C build ${{ matrix.scheduler }}
# Print CPU model before running the tests (this can be useful for
# debugging purposes)
- run: grep 'model name' /proc/cpuinfo | head -1
# Test schedulers
- run: meson compile -C build test_sched_${{ matrix.scheduler }}
# this is where errors we want logs on start occurring, so always generate debug info and save logs
if: always()
# Stress schedulers
- uses: cytopia/[email protected]
name: stress test
if: always()
with:
retries: 3
command: meson compile -C build stress_tests_${{ matrix.scheduler }}
- run: meson compile -C build veristat_${{ matrix.scheduler }}
if: always()
- run: sudo cat /var/log/dmesg > host-dmesg.ci.log
if: always()
- run: mkdir -p ./log_save/
if: always()
# no symlink following here (to avoid cycle`s)
- run: sudo find '/home/runner/' -iname '*.ci.log' -exec mv {} ./log_save/ \;
if: always()
- name: upload debug logs, bpftrace, veristat, dmesg, etc.
if: always()
uses: actions/upload-artifact@v4
with:
name: ${{ matrix.scheduler }}_logs_${{ github.run_id }}_${{ github.run_attempt }}
path: ./log_save/*.ci.log
# it's all txt files w/ 90 day retention, lets be nice.
compression-level: 9
layered-matrix:
runs-on: ubuntu-24.04
needs: build-kernel
strategy:
matrix:
scheduler: [ scx_layered ]
topo: ['--disable-topology=false', '--disable-topology=true']
antistall: ['', '--disable-antistall']
fail-fast: false
steps:
- uses: actions/checkout@v4
- run: echo "SCHED_EXT_KERNEL_COMMIT=$(git ls-remote https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git heads/for-6.13 | awk '{print $1}')" >> $GITHUB_ENV
# use cached kernel if available, create after job if not
- name: Cache Kernel
id: cache-kernel
uses: actions/cache@v4
with:
path: |
linux/arch/x86/boot/bzImage
linux/usr/include
linux/**/*.h
key: kernel-build-${{ env.SCHED_EXT_KERNEL_COMMIT }}-7
# need to re-run job when kernel head changes between build and test running.
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: exit if cache stale
run: exit -1
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- uses: Swatinem/rust-cache@v2
with:
key: ${{ matrix.scheduler }}
prefix-key: "4"
- uses: ./.github/actions/install-deps-action
# cache virtiofsd (goes away w/ 24.04)
- name: Cache virtiofsd
id: cache-virtiofsd
uses: actions/cache@v4
with:
path: |
/usr/lib/virtiofsd
key: virtiofsd-binary
- if: ${{ steps.cache-virtiofsd.outputs.cache-hit != 'true' }}
run: cargo install virtiofsd && sudo cp -a ~/.cargo/bin/virtiofsd /usr/lib/
# The actual build:
- run: meson setup build -Dkernel=../linux/arch/x86/boot/bzImage -Dkernel_headers=../linux -Denable_stress=true -Dvng_rw_mount=true -Dextra_sched_args=" ${{ matrix.topo }} ${{ matrix.antistall }}"
- run: meson compile -C build ${{ matrix.scheduler }}
# Print CPU model before running the tests (this can be useful for
# debugging purposes)
- run: grep 'model name' /proc/cpuinfo | head -1
# Stress schedulers
- uses: cytopia/[email protected]
name: stress test ${{ matrix.topo }}
if: always()
with:
retries: 3
command: meson compile -C build stress_tests_${{ matrix.scheduler }}
- run: meson compile -C build veristat_${{ matrix.scheduler }}
if: always()
- run: sudo cat /var/log/dmesg > host-dmesg.ci.log
if: always()
- run: mkdir -p ./log_save/
if: always()
# no symlink following here (to avoid cycle`s)
- run: sudo find '/home/runner/' -iname '*.ci.log' -exec mv {} ./log_save/ \;
if: always()
- name: upload debug logs, bpftrace, dmesg, etc.
if: always()
uses: actions/upload-artifact@v4
with:
name: ${{ matrix.scheduler }}_${{ matrix.topo }}_${{ matrix.test_name }}_logs_${{ github.run_id }}_${{ github.run_attempt }}_${{ matrix.antistall }}
path: ./log_save/*.ci.log
# it's all txt files w/ 90 day retention, lets be nice.
compression-level: 9
rust-test-core:
runs-on: ubuntu-24.04
needs: build-kernel
strategy:
matrix:
component: [scx_loader, scx_rustland_core, scx_stats, scx_utils]
steps:
- uses: actions/checkout@v4
- run: echo "SCHED_EXT_KERNEL_COMMIT=$(git ls-remote https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git heads/for-6.13 | awk '{print $1}')" >> $GITHUB_ENV
- name: Cache Kernel
id: cache-kernel
uses: actions/cache@v4
with:
path: |
linux/arch/x86/boot/bzImage
linux/usr/include
linux/**/*.h
key: kernel-build-${{ env.SCHED_EXT_KERNEL_COMMIT }}-7
# need to re-run job when kernel head changes between build and test running.
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: exit if cache stale
run: exit -1
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- uses: ./.github/actions/install-deps-action
# cache virtiofsd (goes away w/ 24.04)
- name: Cache virtiofsd
id: cache-virtiofsd
uses: actions/cache@v4
with:
path: |
/usr/lib/virtiofsd
key: virtiofsd-binary
- if: ${{ steps.cache-virtiofsd.outputs.cache-hit != 'true' }}
run: cargo install virtiofsd && sudo cp -a ~/.cargo/bin/virtiofsd /usr/lib/
- run: cargo build --manifest-path rust/${{ matrix.component }}/Cargo.toml
- run: vng -v --rw --memory 10G --cpu 8 -r linux/arch/x86/boot/bzImage --network user -- cargo test --manifest-path rust/${{ matrix.component }}/Cargo.toml
rust-test-schedulers:
runs-on: ubuntu-24.04
needs: build-kernel
strategy:
matrix:
scheduler: [ scx_bpfland, scx_lavd, scx_layered, scx_rlfifo, scx_rustland, scx_rusty ]
steps:
- uses: actions/checkout@v4
- run: echo "SCHED_EXT_KERNEL_COMMIT=$(git ls-remote https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git heads/for-6.13 | awk '{print $1}')" >> $GITHUB_ENV
# Cache Kernel alone for rust tests
- name: Cache Kernel
id: cache-kernel
uses: actions/cache@v4
with:
path: |
linux/arch/x86/boot/bzImage
linux/usr/include
linux/**/*.h
key: kernel-build-${{ env.SCHED_EXT_KERNEL_COMMIT }}-7
# need to re-run job when kernel head changes between build and test running.
- if: ${{ steps.cache-kernel.outputs.cache-hit != 'true' }}
name: exit if cache stale
run: exit -1
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- uses: ./.github/actions/install-deps-action
# cache virtiofsd (goes away w/ 24.04)
- name: Cache virtiofsd
id: cache-virtiofsd
uses: actions/cache@v4
with:
path: |
/usr/lib/virtiofsd
key: virtiofsd-binary
- if: ${{ steps.cache-virtiofsd.outputs.cache-hit != 'true' }}
run: cargo install virtiofsd && sudo cp -a ~/.cargo/bin/virtiofsd /usr/lib/
- run: cargo build --manifest-path scheds/rust/${{ matrix.scheduler }}/Cargo.toml
- run: vng -v --rw --memory 10G --cpu 8 -r linux/arch/x86/boot/bzImage --network user -- cargo test --manifest-path scheds/rust/${{ matrix.scheduler }}/Cargo.toml
pages:
runs-on: ubuntu-24.04
if: github.ref == 'refs/heads/main'
permissions:
contents: write # To push a branch
pages: write # To push to a GitHub Pages site
id-token: write # To update the deployment status
steps:
# prevent cache permission errors
- run: sudo chown root /usr/bin/tar && sudo chmod u+s /usr/bin/tar
- uses: actions/checkout@v4
with:
fetch-depth: 0
- uses: ./.github/actions/install-deps-action
- name: Build Book and Linux Docs
run: |
cd / && rustup component add rustfmt && cd $OLDPWD
RUSTDOCFLAGS="--enable-index-page -Zunstable-options" cargo +nightly doc --workspace --no-deps --bins --lib --examples --document-private-items
sudo apt install build-essential graphviz sphinx-doc python3-sphinx-rtd-theme texlive-latex-recommended python3-yaml -y
cargo install htmlq
git clone --single-branch -b for-6.13 --depth 1 https://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git linux
cd linux
make DOCS_THEME=sphinx_rtd_theme SPHINXDIRS=scheduler htmldocs
make DOCS_THEME=sphinx_rtd_theme SPHINXDIRS=bpf htmldocs
cd ..
cp -a linux/Documentation/output/scheduler target/doc/
cp -a linux/Documentation/output/bpf target/doc/
sed -i 's%<li><a href="server/index.html">server</a></li>%<li><a href="server/index.html">server</a></li><li><a href="scheduler/sched-ext.html">Kernel Sched Ext Docs</a></li><li><a href="bpf/helpers.html">Kernel Bpf Helpers Docs</a></li>%' target/doc/index.html
- name: Setup Pages
uses: actions/configure-pages@v4
- name: Upload artifact
uses: actions/upload-pages-artifact@v3
with:
path: 'target/doc'
- name: Deploy to GitHub Pages
id: deployment
uses: actions/deploy-pages@v4