use tinybeanch instead of benchmark.js

.github/workflows/benchmark.yml

@@ -33,7 +33,7 @@ jobs:
         run: npm run build
 
       - name: Run benchmark
-        run: npm run benchmark | tee output.txt
+        run: npm run benchmark
       # Download previous benchmark result from cache (if exists)
       - name: Download previous benchmark data
         uses: actions/cache@v4
@@ -44,16 +44,9 @@ jobs:
       - name: Store benchmark result
         uses: benchmark-action/github-action-benchmark@v1
         with:
-          # What benchmark tool the output.txt came from
-          tool: "benchmarkjs"
-          # Where the output from the benchmark tool is stored
-          output-file-path: output.txt
-          # Where the previous data file is stored
+          tool: "customSmallerIsBetter"
+          output-file-path: bench_result.json
           external-data-json-path: ./cache/benchmark-data.json
-          # GitHub API token to make a commit comment
           github-token: ${{ secrets.GH_TOKEN }}
-          # Enable alert commit comment
           comment-on-alert: true
-          # Enable Job Summary for PRs
           summary-always: true
-      # Upload the updated cache file for the next job by actions/cache

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 .env
-.turbo
+.turbo
+bench_result.json

benchmark/index.js

@@ -1,8 +1,8 @@
 /* eslint-disable no-console */
-import { readFileSync } from "node:fs";
-import Benchmark from "benchmark";
+import { readFileSync, writeFileSync } from "node:fs";
+import { Bench } from "tinybench";
 
-const suite = new Benchmark.Suite();
+const bench = new Bench({ name: "Calendar Benchmark", time: 100 });
 
 import {
   generateIcsCalendar,
@@ -13,15 +13,33 @@ const file = readFileSync("benchmark/calendar.ics", "utf-8");
 
 const parsed = parseIcsCalendar(file);
 
-suite
+bench
   .add("parse Calendar", () => {
     parseIcsCalendar(file);
   })
   .add("generate Calendar", () => {
     generateIcsCalendar(parsed);
-  })
-  .on("cycle", (event) => {
-    // Output benchmark result by converting benchmark result to string
-    console.log(String(event.target));
-  })
-  .run();
+  });
+
+await bench.run();
+
+console.log(bench.table());
+
+writeFileSync(
+  "bench_result.json",
+  JSON.stringify(
+    bench.tasks.flatMap((t) => [
+      {
+        name: `${t.name} - latency`,
+        unit: "ms",
+        value: t.result.latency.mean.toFixed(3),
+        range: t.result.latency.range,
+      },
+      // {
+      //   name: `${t.name} - throughput`,
+      //   unit: "ops/s",
+      //   value: t.result?.throughput.mean.toFixed(0),
+      // },
+    ])
+  )
+);

package.json

@@ -23,7 +23,7 @@
     "@changesets/cli": "^2.27.8",
     "@neuvernetzung/tsconfig": "^1.0.2",
     "@types/node": "^22.5.5",
-    "benchmark": "^2.1.4",
+    "tinybench": "^3.0.6",
     "turbo": "^2.1.2"
   }
 }