Jordan Whited
960cb50469
To better balance throughput vs backlogged packet memory consumption. These changes reduce peak RSS in UDP TX benchmarks that previously regressed in8fc6dca. All other benchmarks remain largely unchanged. Netstack benchmarks are new, with back-tested results from1e69418. The following throughput and peak RSS benchmarks were performed with iperf3 between two Intel i5-12400 nodes running Ubuntu 24.04 (Linux 6.8). The UDP benchmarks did not use UDP GSO on the sender, so they were roughly equivalent to single packet I/O through wireguard-go. TCP/1 signifies one TCP stream; TCP/128 signifies 128 parallel TCP streams. -NS signifies netstack, and -RX/-TX signify the side netstack was running on, with the other being a natural TUN. Change column is calculated against the oldest baseline (1e69418). Throughput (Mb/s) Test1e694188fc6dcaqueue-size Change TCP/1 10,371 11,354 11,407 +9.98% TCP/1-NS-TX 9,225 10,553 10,481 +13.61% TCP/1-NS-RX 8,573 9,097 9,002 +5.00% TCP/128 7,886 8,404 8,427 +6.85% TCP/128-NS-TX 4,613 6,408 5,448 +18.10% TCP/128-NS-RX 6,730 8,524 8,279 +23.02% UDP/1 2,111 2,853 2,751 +30.33% UDP/1-NS-TX 2,022 1,941 1,904 -5.85% UDP/1-NS-RX 2,087 2,444 2,261 +8.35% UDP/128 1,747 2,235 2,216 +26.87% UDP/128-NS-TX 1,325 1,615 1,424 +7.47% UDP/128-NS-RX 1,743 2,219 2,240 +28.50% Peak memory (VmHWM, kB) Test Side1e694188fc6dcaqueue-size Change TCP/1 TX 98,240 52,596 52,508 -46.55% RX 287,748 73,384 65,404 -77.27% TCP/1-NS-TX TX 254,196 85,116 76,076 -70.07% TCP/1-NS-RX RX 434,952 70,420 70,916 -83.70% TCP/128 TX 101,196 52,812 51,740 -48.87% RX 290,420 63,620 62,716 -78.41% TCP/128-NS-TX TX 1,499,200 1,199,304 821,740 -45.19% TCP/128-NS-RX RX 3,945,960 475,276 153,516 -96.11% UDP/1 TX 58,864 160,840 58,060 -1.37% RX 137,516 49,900 51,732 -62.38% UDP/1-NS-TX TX 214,924 282,400 59,956 -72.10% UDP/1-NS-RX RX 112,152 49,004 49,108 -56.21% UDP/128 TX 66,148 116,096 57,344 -13.31% RX 154,384 56,556 57,572 -62.71% UDP/128-NS-TX TX 187,096 225,080 88,628 -52.63% UDP/128-NS-RX RX 156,108 74,556 75,952 -51.35% Updates tailscale/corp#46716 Updates tailscale/corp#22467 Updates tailscale/corp#36989 Updates tailscale/corp#37878 Signed-off-by: Jordan Whited <jordan@tailscale.com>
Tailscale
Private WireGuard® networks made easy
Overview
This repository contains the majority of Tailscale's open source code.
Notably, it includes the tailscaled daemon and
the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows,
macOS, and to varying degrees
on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's
code, but this repo doesn't contain the mobile GUI code.
Other Tailscale repos of note:
- the Android app is at https://github.com/tailscale/tailscale-android
- the Synology package is at https://github.com/tailscale/tailscale-synology
- the QNAP package is at https://github.com/tailscale/tailscale-qpkg
- the Chocolatey packaging is at https://github.com/tailscale/tailscale-chocolatey
For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.
Using
We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.
Other clients
The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.
Building
We always require the latest Go release, currently Go 1.27. (While we build releases with our Go fork, its use is not required.)
go install tailscale.com/cmd/tailscale{,d}
If you're packaging Tailscale for distribution, use build_dist.sh
instead, to burn commit IDs and version info into the binaries:
./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled
If your distro has conventions that preclude the use of
build_dist.sh, please do the equivalent of what it does in your
distro's way, so that bug reports contain useful version information.
Bugs
Please file any issues about this code or the hosted service on the issue tracker.
Contributing
PRs welcome! But please file bugs. Commit messages should reference bugs.
We require Developer Certificate of
Origin
Signed-off-by lines in commits.
See commit-messages.md (or skim git log) for our commit message style.
About Us
Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:
- https://github.com/tailscale/tailscale/graphs/contributors
- https://github.com/tailscale/tailscale-android/graphs/contributors
Legal
WireGuard is a registered trademark of Jason A. Donenfeld.