chore(ci): automatically publish benchmarks in a graph

.github/workflows/bench.yml

@@ -0,0 +1,58 @@
+name: Benchmark
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  benchmark:
+    name: Benchmark
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        bench:
+          - connect
+          - end_to_end
+          - pipeline
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Rust
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          override: true
+
+      # Run benchmark and stores the output to a file
+      - name: Run benchmark
+        run: cargo bench --bench ${{ matrix.bench }} | tee output.txt
+
+      # 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: seanmonstar/github-action-benchmark@v1-patch-1
+        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: '@seanmonstar'
+          auto-push: true
+
+      # Upload the updated cache file for the next job by actions/cache

benches/pipeline.rs

@@ -16,7 +16,7 @@ use hyper::{Body, Response, Server};
 const PIPELINED_REQUESTS: usize = 16;
 
 #[bench]
-fn hello_world(b: &mut test::Bencher) {
+fn hello_world_16(b: &mut test::Bencher) {
     let _ = pretty_env_logger::try_init();
     let (_until_tx, until_rx) = oneshot::channel::<()>();