perf: fs optimizations - part 1 (#15873)

1 files changed, 26 insertions, 0 deletions

diff --git a/cli/bench/fs/README.md b/cli/bench/fs/README.md
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+## `fs` benchmarks
+
+### adding new benchmarks
+
+```js
+const copyFileSync = getFunction("copyFileSync");
+bench(() => copyFileSync("test", "test2"));
+
+// For functions with side-effects, clean up after `bench` like so:
+const removeSync = getFunction("removeSync");
+removeSync("test2");
+```
+
+### running
+
+```bash
+deno run -A --unstable run.mjs
+node run.js
+```
+
+### view report
+
+```bash
+deno run --allow-net=127.0.0.1:9000 serve.jsx
+# View rendered report at http://127.0.0.1:9000/
+```