Add shell-spawn microbenchmark

bench/package.json

@@ -8,10 +8,12 @@
     "braces": "^3.0.2",
     "esbuild": "^0.14.12",
     "eventemitter3": "^5.0.0",
+    "execa": "^8.0.1",
     "fast-glob": "3.3.1",
     "fdir": "^6.1.0",
     "mitata": "^0.1.6",
-    "string-width": "^7.0.0"
+    "string-width": "^7.0.0",
+    "zx": "^7.2.3"
   },
   "scripts": {
     "ffi": "cd ffi && bun run deps && bun run build && bun run bench",

bench/snippets/shell-spawn.mjs

@@ -0,0 +1,38 @@
+import { $ as zx } from "zx";
+import { $ as execa$ } from "execa";
+import { bench, run, group } from "./runner.mjs";
+
+const execa = execa$({ stdio: "ignore", cwd: import.meta.dirname });
+
+group("echo hi", () => {
+  if (typeof Bun !== "undefined")
+    bench("$`echo hi`", async () => {
+      await Bun.$`echo hi`.quiet();
+    });
+
+  bench("execa`echo hi`", async () => {
+    await execa`echo hi`;
+  });
+
+  bench("zx`echo hi`", async () => {
+    await zx`echo hi`.quiet();
+  });
+});
+
+group("ls .", () => {
+  if (typeof Bun !== "undefined")
+    bench("$`ls .`", async () => {
+      await Bun.$`ls .`.quiet();
+    });
+
+  bench("execa`ls .`", async () => {
+    await execa`ls .`;
+  });
+
+  bench("zx`ls .`", async () => {
+    await zx`ls .`.quiet();
+  });
+});
+
+
+await run();