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docs: refresh port driver benchmark table #618

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12 changes: 6 additions & 6 deletions docs/port.md
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Expand Up @@ -6,13 +6,13 @@ The default value is `none` (do not expose ports).

| `--port-driver` | Throughput | Source IP | Notes
|----------------------|-------------|----------|-------
| `slirp4netns` | 8.03 Gbps | Propagated |
| `builtin` | 29.9 Gbps | Propagated for TCP (since v3.0) | Source IP propagation (`--source-ip-transparent`) applies to TCP only; UDP is not propagated. In the case of Rootless Docker, userland-proxy has to be disabled for propagating the source IP.
| `implicit` | 37.6 Gbps | Propagated | Requires `pasta` network
| `pesto` (Experimental) | TBD | Propagated | Requires `pasta` network and passt `2026_05_07.1afd4ed` or later. Supports explicit port management through `rootlessctl`.
| `gvisor-tap-vsock` (Experimental) | 3.83 Gbps | Not propagated | Throughput is currently limited; see issue link below for improvement ideas.
| `slirp4netns` | 7.56 Gbps | Propagated |
| `builtin` | 29.3 Gbps | Propagated for TCP (since v3.0) | Source IP propagation (`--source-ip-transparent`) applies to TCP only; UDP is not propagated. In the case of Rootless Docker, userland-proxy has to be disabled for propagating the source IP.
| `implicit` | 39.9 Gbps | Propagated | Requires `pasta` network
| `pesto` (Experimental) | 45.2 Gbps | Propagated | Requires `pasta` network and passt `2026_05_07.1afd4ed` or later. Supports explicit port management through `rootlessctl`.
| `gvisor-tap-vsock` (Experimental) | 3.77 Gbps | Not propagated | Throughput is currently limited; see issue link below for improvement ideas.

Benchmark: iperf3 from the parent to the child is measured on GitHub Actions ([Apr 10, 2026](https://github.com/rootless-containers/rootlesskit/actions/runs/24200485791/job/70642399211))
Benchmark: iperf3 from the parent to the child is measured on GitHub Actions ([Aug 4, 2026](https://github.com/rootless-containers/rootlesskit/actions/runs/30896585927/job/91950824205))

The `builtin` driver is fast and should be the best choice for most use cases.

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