benchmark.yml

# Copyright (c) Facebook, Inc. and its affiliates.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

name: "Ubuntu Benchmark"

on:
  pull_request:
    paths:
      - 'velox/**'
      - '!velox/docs/**'
      - 'third_party/**'
      - 'pyvelox/**'
      - '.github/workflows/benchmark.yml'
  push:
    branches: [main]

permissions:
  contents: read

defaults:
  run:
    shell: bash
#TODO  concurrency groups?
jobs:
  benchmark:
    if: github.repository == 'facebookincubator/velox'
    runs-on: 8-core
    env:
      CCACHE_DIR: "${{ github.workspace }}/.ccache/"
      CCACHE_BASEDIR: "${{ github.workspace }}"
      BINARY_DIR: "${{ github.workspace }}/benchmarks/"
      LINUX_DISTRO: "ubuntu"
      RESULTS_ROOT: "${{ github.workspace }}/benchmark-results"
      BASELINE_OUTPUT_PATH: "${{ github.workspace }}/benchmark-results/baseline/"
      CONTENDER_OUTPUT_PATH: "${{ github.workspace }}/benchmark-results/contender/"
    steps:

      - name: "Restore ccache"
        uses: actions/cache/restore@v3
        id: restore-cache
        with:
          path: ".ccache"
          key: ccache-benchmark-${{ github.sha }}
          restore-keys: |
            ccache-benchmark-
      
      - name: "Checkout Repo"
        if: ${{ github.event_name == 'pull_request' }}
        uses: actions/checkout@v3
        with:
          path: 'velox'
          repository: ${{ github.event.pull_request.head.repo.full_name }}
          ref: ${{ github.head_ref }}
          fetch-depth: 0
          submodules: 'recursive'

      - name: "Install dependencies"
        if: ${{ github.event_name == 'pull_request' }}
        run: source velox/scripts/setup-ubuntu.sh

      - name: "Checkout Merge Base"
        if: ${{ github.event_name == 'pull_request' }}
        working-directory: velox
        run: |
          # Choose merge base from upstream main to avoid issues with
          # outdated fork branches
          git fetch origin
          git remote add upstream https://github.com/facebookincubator/velox
          git fetch upstream
          git status
          merge_base=$(git merge-base 'upstream/${{ github.base_ref }}' 'origin/${{ github.head_ref }}') || \
            { echo "::error::Failed to find merge base"; exit 1; }
          echo "Merge Base: $merge_base"
          git checkout $merge_base
          git submodule update --init --recursive
          echo $(git log -n 1)

      - name: Build Baseline Benchmarks
        if: ${{ github.event_name == 'pull_request' }}
        working-directory: velox
        run: |
            n_cores=$(nproc)
            make benchmarks-basic-build NUM_THREADS=$n_cores MAX_HIGH_MEM_JOBS=$n_cores MAX_LINK_JOBS=$n_cores
            ccache -s
            mkdir -p ${BINARY_DIR}/baseline/
            cp -r --verbose _build/release/velox/benchmarks/basic/* ${BINARY_DIR}/baseline/

      - name: "Checkout Contender PR"
        if: ${{ github.event_name == 'pull_request' }}
        working-directory: velox
        run: |
          git checkout '${{ github.event.pull_request.head.sha }}'

      - name: "Checkout Contender"
        if: ${{ github.event_name == 'push' }}
        uses: actions/checkout@v3
        with:
          path: 'velox'
          ref: ${{ github.sha }}
          submodules: 'recursive'

      - name: "Install dependencies"
        run: source velox/scripts/setup-ubuntu.sh

      - name: Build Contender Benchmarks
        working-directory: velox
        run: |
            n_cores=$(nproc)
            make benchmarks-basic-build NUM_THREADS=$n_cores MAX_HIGH_MEM_JOBS=$n_cores MAX_LINK_JOBS=$n_cores
            ccache -s
            mkdir -p  ${BINARY_DIR}/contender/
            cp -r --verbose _build/release/velox/benchmarks/basic/*  ${BINARY_DIR}/contender/

      - name: "Save ccache"
        uses: actions/cache/save@v3
        id: cache
        with:
          path: ".ccache"
          key: ccache-benchmark-${{ github.sha }}

      - name: "Install benchmark dependencies"
        run: |
          python3 -m pip install -r velox/scripts/benchmark-requirements.txt

      - name: "Run Benchmarks - Baseline"
        if: ${{ github.event_name == 'pull_request' }}
        working-directory: 'velox'
        run: |
            make benchmarks-basic-run \
                EXTRA_BENCHMARK_FLAGS="--binary_path ${BINARY_DIR}/baseline/ --output_path ${BASELINE_OUTPUT_PATH}"

      - name: "Run Benchmarks - Contender"
        working-directory: 'velox'
        run: |
            make benchmarks-basic-run \
                EXTRA_BENCHMARK_FLAGS="--binary_path ${BINARY_DIR}/contender/ --output_path ${CONTENDER_OUTPUT_PATH}"
                
      - name: "Compare initial results"
        id: compare
        if: ${{ github.event_name == 'pull_request' }}
        run: |
            ./velox/scripts/benchmark-runner.py compare \
                --baseline_path ${BASELINE_OUTPUT_PATH} \
                --contender_path ${CONTENDER_OUTPUT_PATH} \
                --rerun_json_output "benchmark-results/rerun_json_output_0.json" \
                --do_not_fail

      - name: "Rerun Benchmarks"
        if: ${{ github.event_name == 'pull_request'}}    
        working-directory: 'velox'
        run: |
          for i in 1 2 3 4 5; do
            CURRENT_JSON_RERUN="${RESULTS_ROOT}/rerun_json_output_$((${i} - 1)).json"
            NEXT_JSON_RERUN="${RESULTS_ROOT}/rerun_json_output_${i}.json"
  
            if [ ! -s "${CURRENT_JSON_RERUN}" ]; then
              echo "::notice::Rerun iteration ${i} found empty file. Finalizing."
              break
            fi

            echo "::group::Rerun iteration: ${i}"
            make benchmarks-basic-run \
                EXTRA_BENCHMARK_FLAGS="--binary_path ${BINARY_DIR}/baseline/ --output_path ${BASELINE_OUTPUT_PATH}/rerun-${i}/ --rerun_json_input ${CURRENT_JSON_RERUN}"

            make benchmarks-basic-run \
                EXTRA_BENCHMARK_FLAGS="--binary_path ${BINARY_DIR}/contender/ --output_path ${CONTENDER_OUTPUT_PATH}/rerun-${i}/ --rerun_json_input ${CURRENT_JSON_RERUN}"

            ./scripts/benchmark-runner.py compare \
                --baseline_path ${BASELINE_OUTPUT_PATH}/rerun-${i}/ \
                --contender_path ${CONTENDER_OUTPUT_PATH}/rerun-${i}/ \
                --rerun_json_output ${NEXT_JSON_RERUN} \
                --do_not_fail
          echo "::endgroup::"
          done
          

          echo "::group::Compare final results"
          ./scripts/benchmark-runner.py compare \
                --baseline_path ${BASELINE_OUTPUT_PATH} \
                --contender_path ${CONTENDER_OUTPUT_PATH} \
                --recursive \
                --do_not_fail
          echo "::endgroup::"

      - name: "Save PR number"
        run: echo "${{ github.event.pull_request.number }}" > pr_number.txt

      - name: "Upload PR number"
        uses: actions/upload-artifact@v3
        with:
          path: "pr_number.txt"
          name: "pr_number"
      
      - name: "Upload result artifact"
        uses: actions/upload-artifact@v3
        with:
          path: "benchmark-results"
          name: "benchmark-results"