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ci: cache target dir for CUDA codspeed bench (~7× faster build) #8256

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ci: cache target dir for CUDA codspeed bench (~7× faster build) #8256

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13 changes: 12 additions & 1 deletion .github/workflows/codspeed.yml
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Expand Up @@ -77,7 +77,7 @@ jobs:
name: "Benchmark with Codspeed (CUDA Shard #${{ matrix.shard }} - ${{ matrix.name }})"
timeout-minutes: 30
runs-on: >-
runs-on=${{ github.run_id }}/family=g5/cpu=8/image=ubuntu24-gpu-x64/tag=bench-codspeed-cuda-${{ matrix.shard }}
runs-on=${{ github.run_id }}/family=g5/cpu=8/image=ubuntu24-gpu-x64/tag=bench-codspeed-cuda-${{ matrix.shard }}/extras=s3-cache
steps:
- uses: runs-on/action@v2
with:
Expand All @@ -86,6 +86,17 @@ jobs:
- uses: ./.github/actions/setup-rust
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
# Unlike the CPU bench shards (which run on a prebuilt -pre-v2 AMI), the CUDA shards
# run on ephemeral GPU runners with a cold cargo target/ every run. Restore target/
# with rust-cache (as publish-dry-runs.yml does), keyed per shard and only saved on
# develop so PRs restore from develop's cache. `extras=s3-cache` on the runner above
# routes it to the same S3 bucket as sccache (like bench.yml), so there is no separate
# GitHub Actions cache backend.
- name: Rust target cache
uses: Swatinem/rust-cache@e18b497796c12c097a38f9edb9d0641fb99eee32 # v2
with:
shared-key: "bench-codspeed-cuda-${{ matrix.shard }}"
save-if: ${{ github.ref_name == 'develop' }}
- name: Display NVIDIA SMI details
run: |
nvidia-smi
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