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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>		4 months ago
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addlicense	all: update tools that manage copyright headers	2 years ago
build-webclient	client/web: precompress assets	12 months ago
cloner	cmd/cloner, cmd/viewer: add _test prefix for files generated with the test build tag	5 months ago
connector-gen	cmd/connector-gen: add helper tool for wide app connector configurations	12 months ago
containerboot	cmd/containerboot,cmd/k8s-operator: enable IPv6 for fqdn egress proxies (#12577)	5 months ago
derper	types/opt: add generic Value[T any] for optional values of any types	5 months ago
derpprobe	cmd/derpprobe: support 'local' derpmap to get derp map via LocalAPI	6 months ago
dist	release/dist/qnap: add qnap target builder	7 months ago
get-authkey	util/cmpx: delete now that we're using Go 1.22	10 months ago
gitops-pusher	cmd/gitops-pusher: only use OAuth creds if non-empty string	10 months ago
hello	cmd/hello: link to the Hello KB article (#11022)	10 months ago
k8s-nameserver	cmd/k8s-nameserver: fix AAAA record query response (#12412)	6 months ago
k8s-operator	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GSO for Linux (#12869)	4 months ago
mkmanifest	cmd/mkmanifest, cmd/tailscale, cmd/tailscaled: remove Windows arm32 resources from OSS	2 years ago
mkpkg	go.mod: upgrade nfpm to v2 (#8786)	1 year ago
mkversion	version/mkversion: open-source version generation logic	2 years ago
nardump	all: update copyright and license headers	2 years ago
natc	go.mod: bump bart	5 months ago
netlogfmt	all: use Go 1.22 range-over-int	8 months ago
nginx-auth	tailcfg,all: add and use Node.IsTagged()	2 years ago
pgproxy	tsnet: split user facing and backend logging	7 months ago
printdep	cmd/printdep: print correct toolchain URL	2 years ago
proxy-to-grafana	cmd/proxy-to-grafana: add flag for alternative control server	5 months ago
sniproxy	all: use math/rand/v2 more	6 months ago
speedtest	all: update copyright and license headers	2 years ago
ssh-auth-none-demo	all: replace deprecated ioutil references	1 year ago
stunc	cmd/stunc: support user-specified port (#12469)	6 months ago
stund	types/opt: add generic Value[T any] for optional values of any types	5 months ago
stunstamp	cmd/stunstamp: fix handling of invalid DERP map resp (#12679)	5 months ago
sync-containers	all: adjust some build tags for plan9	1 year ago
tailscale	cmd/tailscale/cli: release portmap after netcheck	4 months ago
tailscaled	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GSO for Linux (#12869)	4 months ago
testcontrol	all: use Go 1.22 range-over-int	8 months ago
testwrapper	cmd/testwrapper: apply results of all unit tests to coverage for all packages	9 months ago
tsconnect	all: use math/rand/v2 more	6 months ago
tsidp	tsnet: split user facing and backend logging	7 months ago
tsshd	all: update copyright and license headers	2 years ago
viewer	cmd/viewer, types/views, util/codegen: add viewer support for custom container types	4 months ago
xdpderper	all: add test for package comments, fix, add comments as needed	5 months ago