https://github.com/frectonz/fcp-vs-bun-cp

Is bun's cp faster than fcp
https://github.com/frectonz/fcp-vs-bun-cp

Last synced: about 2 months ago
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Is bun's cp faster than fcp

• Host: GitHub
• URL: https://github.com/frectonz/fcp-vs-bun-cp
• Owner: frectonz
• Created: 2023-09-09T12:53:35.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2023-09-09T18:20:47.000Z (almost 3 years ago)
• Last Synced: 2025-03-03T17:13:44.499Z (over 1 year ago)
• Language: Nix
• Homepage:
• Size: 462 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# `fcp` vs `bun cp`

If you have nix installed, this command will install `bun`, `fcp` and `hyperfine`.

```bash

nix develop

```

The test command is this. Don't forget to have a large file in `/tmp/huge`.

```bash

hyperfine "fcp /tmp/huge /tmp/dest" "bun ./cp-r.mjs /tmp/huge /tmp/dest" --prepare="rm -rf /tmp/dest" --warmup=20

```

# Context

This repo was created to test [Jarred Sumner's](https://twitter.com/jarredsumner/status/1697106543920271524) (creator of bun) claim that bun's `cp` implementation is faster than the rust based `fcp` in this [tweet](https://twitter.com/jarredsumner/status/1697106543920271524).

# Sample Runs

`bun` `1.04x` faster than `fcp`

![frectonz-1](./runs/frectonz-1.jpg)

----

`fcp` `1.19x` faster than `bun`

![frectonz-2](./runs/frectonz-2.jpg)

---

`fcp` `1.02x` faster than `bun`

![alex-1](./runs/alex-1.jpg)

---

`bun` `1.20x` faster than `fcp`

![alex-2](./runs/alex-2.jpg)

---

`fcp` `1.09x` faster than `bun`

![yohannestz-1](./runs/yohannestz-1.jpg)

---

`fcp` `1.04x` faster than `bun`

![dgcp3-1](./runs/dgcp3-1.jpg)