From 97c2c4203cd7c42960cac895987c43a17dff052e Mon Sep 17 00:00:00 2001
From: Carl Lerche <me@carllerche.com>
Date: Fri, 13 Nov 2020 19:30:52 -0800
Subject: chore: automate running benchmarks (#3140)

Uses Github actions to run benchmarks.
---
 .github/workflows/bench.yml | 55 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 .github/workflows/bench.yml

(limited to '.github')

diff --git a/.github/workflows/bench.yml b/.github/workflows/bench.yml
new file mode 100644
index 00000000..98925986
--- /dev/null
+++ b/.github/workflows/bench.yml
@@ -0,0 +1,55 @@
+name: Benchmark
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  benchmark:
+    name: Benchmark
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        bench:
+          - rt_multi_threaded
+          - sync_mpsc
+          - sync_rwlock
+          - sync_semaphore
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Rust
+        run: rustup update stable
+
+      # Run benchmark with `go test -bench` and stores the output to a file
+      - name: Run benchmark
+        run: cargo bench --bench ${{ matrix.bench }} | tee ../output.txt
+        working-directory: benches
+
+      # Download previous benchmark result from cache (if exists)
+      - name: Download previous benchmark data
+        uses: actions/cache@v1
+        with:
+          path: ./cache
+          key: ${{ runner.os }}-benchmark
+
+      # Run `github-action-benchmark` action
+      - name: Store benchmark result
+        uses: rhysd/github-action-benchmark@v1
+        with:
+          name: ${{ matrix.bench }}
+          # What benchmark tool the output.txt came from
+          tool: 'cargo'
+          # Where the output from the benchmark tool is stored
+          output-file-path: output.txt
+          # # Where the previous data file is stored
+          # external-data-json-path: ./cache/benchmark-data.json
+          # Workflow will fail when an alert happens
+          fail-on-alert: true
+          # GitHub API token to make a commit comment
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          # Enable alert commit comment
+          comment-on-alert: true
+          alert-comment-cc-users: '@tokio-rs/maintainers'
+          auto-push: true
+
+      # Upload the updated cache file for the next job by actions/cache
\ No newline at end of file
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