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Jordan Whited 7bc2ddaedc go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GSO for Linux (#12869) ... This commit implements TCP GSO for packets being read from gVisor on Linux. Windows support will follow later. The wireguard-go dependency is updated in order to make use of newly exported GSO logic from its tun package. A new gVisor stack.LinkEndpoint implementation has been established (linkEndpoint) that is loosely modeled after its predecessor (channel.Endpoint). This new implementation supports GSO of monster TCP segments up to 64K in size, whereas channel.Endpoint only supports up to 32K. linkEndpoint will also be required for GRO, which will be implemented in a follow-on commit. TCP throughput from gVisor, i.e. TUN read direction, is dramatically improved as a result of this commit. Benchmarks show substantial improvement through a wide range of RTT and loss conditions, sometimes as high as 5x. The iperf3 results below demonstrate the effect of this commit between two Linux computers with i5-12400 CPUs. There is roughly ~13us of round trip latency between them. The first result is from commit 57856fc without TCP GSO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 2.51 GBytes 2.15 Gbits/sec 154 sender [ 5] 0.00-10.00 sec 2.49 GBytes 2.14 Gbits/sec receiver The second result is from this commit with TCP GSO. Starting Test: protocol: TCP, 1 streams, 131072 byte blocks - - - - - - - - - - - - - - - - - - - - - - - - - Test Complete. Summary Results: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 12.6 GBytes 10.8 Gbits/sec 6 sender [ 5] 0.00-10.00 sec 12.6 GBytes 10.8 Gbits/sec receiver Updates #6816 Signed-off-by: Jordan Whited <jordan@tailscale.com>		2 months ago
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childproc	all: update copyright and license headers	2 years ago
debug.go	net/netmon, add: add netmon.State type alias of interfaces.State	5 months ago
depaware.txt	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GSO for Linux (#12869)	2 months ago
generate.go	cmd/mkmanifest, cmd/tailscale, cmd/tailscaled: remove Windows arm32 resources from OSS	2 years ago
install_darwin.go	all: update copyright and license headers	2 years ago
install_windows.go	all: update copyright and license headers	2 years ago
manifest_windows_386.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	2 years ago
manifest_windows_amd64.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	2 years ago
manifest_windows_arm64.syso	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	2 years ago
proxy.go	all: update copyright and license headers	2 years ago
required_version.go	all: require Go 1.21	1 year ago
sigpipe.go	all: adjust some build tags for plan9	1 year ago
ssh.go	all: update copyright and license headers	2 years ago
taildrop.go	taildrop: remove breaking abstraction layers for apple (#10728)	9 months ago
tailscaled.defaults	cmd/tailscaled: rename relaynode reference in defaults file comment	5 years ago
tailscaled.go	net/dns, cmd/tailscaled: plumb system health tracker into dns cleanup (#12969)	2 months ago
tailscaled.openrc	tstest/integration/vms: use an in-process logcatcher (#2360)	3 years ago
tailscaled.service	cmd/tailscaled: move cleanup to an implicit action during startup	6 months ago
tailscaled_bird.go	all: update copyright and license headers	2 years ago
tailscaled_notwindows.go	all: update copyright and license headers	2 years ago
tailscaled_test.go	all: do not depend on the testing package	4 months ago
tailscaled_windows.go	cmd/tailscaled, net/dns, wgengine/router: start Windows child processes with DETACHED_PROCESS when I/O is being piped	3 months ago
windows-manifest.xml	cmd/{tailscale,tailscaled}: embed manifest into Windows binaries	2 years ago
with_cli.go	all: update copyright and license headers	2 years ago