From baa6193211187305bf2e030259c5b30cbca39532 Mon Sep 17 00:00:00 2001
From: Nate Moore <git@natemoo.re>
Date: Sat, 30 May 2026 04:35:22 -0500
Subject: [PATCH] ref(bench): spawn fixture

---
 .github/workflows/benchmark.yml      | 40 +++++++++++++++++++++++++---
 bench/fixtures/create-term/mod.ts    |  3 +++
 bench/fixtures/render-minimal/mod.ts |  9 +++++++
 bench/fixtures/utils.ts              |  9 +++++++
 bench/startup.bench.ts               | 12 +++++++++
 bench/startup/createTerm.bench.ts    | 14 ----------
 bench/startup/ttfr.bench.ts          | 20 --------------
 7 files changed, 69 insertions(+), 38 deletions(-)
 create mode 100644 bench/fixtures/create-term/mod.ts
 create mode 100644 bench/fixtures/render-minimal/mod.ts
 create mode 100644 bench/fixtures/utils.ts
 create mode 100644 bench/startup.bench.ts
 delete mode 100644 bench/startup/createTerm.bench.ts
 delete mode 100644 bench/startup/ttfr.bench.ts

diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 0b9e7c4..7ec8502 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -50,7 +50,39 @@ jobs:
         with:
           mode: simulation
           # IMPORTANT! deno task bench fails in CI due to incompatible V8 bindings
-          run: |
-            node bench/mod.ts
-            node bench/startup/createTerm.bench.ts
-            node bench/startup/ttfr.bench.ts
+          run: node bench/mod.ts
+
+  startup-process-benchmarks:
+    name: Run process startup benchmarks
+    runs-on: codspeed-macro
+    permissions:
+      contents: read
+      id-token: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          submodules: true
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 22
+
+      - name: Build WASM
+        run: make
+
+      - name: Install dependencies
+        run: deno install
+
+      - name: Run process startup benchmarks
+        uses: CodSpeedHQ/action@v4
+        with:
+          mode: walltime
+          run: node bench/startup.bench.ts
diff --git a/bench/fixtures/create-term/mod.ts b/bench/fixtures/create-term/mod.ts
new file mode 100644
index 0000000..b391f21
--- /dev/null
+++ b/bench/fixtures/create-term/mod.ts
@@ -0,0 +1,3 @@
+import { createTerm } from "../../../term.ts";
+
+await createTerm({ width: 80, height: 24 });
diff --git a/bench/fixtures/render-minimal/mod.ts b/bench/fixtures/render-minimal/mod.ts
new file mode 100644
index 0000000..6430785
--- /dev/null
+++ b/bench/fixtures/render-minimal/mod.ts
@@ -0,0 +1,9 @@
+import { createTerm } from "../../../term.ts";
+import { close, grow, open, text } from "../../../ops.ts";
+
+let term = await createTerm({ width: 80, height: 24 });
+term.render([
+    open("root", { layout: { width: grow(), height: grow(), direction: "ttb" } }),
+    text("Hello, World!"),
+    close(),
+]);
diff --git a/bench/fixtures/utils.ts b/bench/fixtures/utils.ts
new file mode 100644
index 0000000..85014b6
--- /dev/null
+++ b/bench/fixtures/utils.ts
@@ -0,0 +1,9 @@
+import { fileURLToPath } from "node:url";
+import { spawnSync } from "node:child_process";
+
+export const fixture = (name: string) => {
+    return new URL(`./${name}/mod.ts`, import.meta.url);
+}
+
+export const spawnFixture = (name: string) =>
+  spawnSync(process.execPath, [...process.execArgv, fileURLToPath(fixture(name))], { stdio: "ignore" });
diff --git a/bench/startup.bench.ts b/bench/startup.bench.ts
new file mode 100644
index 0000000..679b8e1
--- /dev/null
+++ b/bench/startup.bench.ts
@@ -0,0 +1,12 @@
+import { Bench } from "tinybench";
+import { withCodSpeed } from "@codspeed/tinybench-plugin";
+import { spawnFixture } from './fixtures/utils.ts';
+
+let bench = withCodSpeed(new Bench({ name: "startup" }));
+
+bench
+  .add("createTerm", () => spawnFixture('create-term'))
+  .add("time to first render", () => spawnFixture('render-minimal'));
+
+await bench.run();
+console.table(bench.table());
diff --git a/bench/startup/createTerm.bench.ts b/bench/startup/createTerm.bench.ts
deleted file mode 100644
index ea431c6..0000000
--- a/bench/startup/createTerm.bench.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { Bench } from "tinybench";
-import { withCodSpeed } from "@codspeed/tinybench-plugin";
-import { createTerm } from "../../term.ts";
-
-let bench = withCodSpeed(new Bench({ name: 'startup',  }));
-
-bench
-  .add("createTerm", async () => {
-    await createTerm({ width: 80, height: 24 });
-  });
-
-await bench.run();
-console.table(bench.table());
-
diff --git a/bench/startup/ttfr.bench.ts b/bench/startup/ttfr.bench.ts
deleted file mode 100644
index 2c5abb9..0000000
--- a/bench/startup/ttfr.bench.ts
+++ /dev/null
@@ -1,20 +0,0 @@
-import { Bench } from "tinybench";
-import { withCodSpeed } from "@codspeed/tinybench-plugin";
-import { createTerm } from "../../term.ts";
-import { close, grow, open, text } from "../../ops.ts";
-
-let bench = withCodSpeed(new Bench({ name: 'startup' }));
-
-bench
-  .add("time to first render", async () => {
-    let term = await createTerm({ width: 80, height: 24 });
-    term.render([
-        open("root", { layout: { width: grow(), height: grow(), direction: "ttb" } }),
-        text("Hello, World!"),
-        close(),
-    ]);
-  });
-
-await bench.run();
-console.table(bench.table());
-
-- 
2.51.2