Brad Fitzpatrick
1033e714ca
testwrapper ran a separate, sequential "go test" invocation for each package pattern on its command line. That is fine for a single "./..." argument but not for callers that pass an explicit package list: CI jobs in the corp repo passing ~200 packages ran ~200 serial go test processes with no cross-package parallelism and a fixed set of never-cacheable lookups per process, and spent several times longer on process startup, package loading, cache lookups, and serial test binary links than on running tests. See tailscale/corp#48453 for the details. Locally, on 203 packages with a fully warm build and test cache, so measuring only the per-invocation overhead: old (203 go test processes): 26.4s new (1 go test process): 3.6s (7.3x faster) Our own Windows CI job hits the same path: its "sharded:N/M" mode expands to an explicit list of that shard's packages via listpkgs, so each shard ran one go test process per package, and Windows process startup is slower still. Each shard now runs as one invocation. Fixes tailscale/corp#48453 Updates tailscale/corp#47035 Change-Id: I3f796ff1724af40f93be9f918a7ddfde3bb45a91 Signed-off-by: Brad Fitzpatrick <bradfitz@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.