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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>		3 months ago
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art	all: use Go 1.22 range-over-int	7 months ago
captivedetection	net/captivedetection: call SetHealthy once connectivity restored (#12974)	4 months ago
connstats	all: use Go 1.22 range-over-int	7 months ago
dns	net/dns, cmd/tailscaled: plumb system health tracker into dns cleanup (#12969)	4 months ago
dnscache	net/dnscache: use parent context to perform lookup	5 months ago
dnsfallback	net/dnsfallback: set CanPort80 in static DERPMap (#12929)	4 months ago
flowtrack	net/flowtrack: fix, test String method	5 months ago
ipset	go.mod: bump bart	4 months ago
ktimeout	net/ktimeout: add a package to set TCP user timeout	9 months ago
memnet	net/memnet: export the network name (#9111)	1 year ago
netaddr	all: update copyright and license headers	2 years ago
netcheck	health: introduce captive-portal-detected Warnable (#12707)	4 months ago
neterror	net/neterror, wgengine/magicsock: use UDP GSO and GRO on Linux (#7791)	2 years ago
netkernelconf	ipn/{ipnlocal,localapi},net/netkernelconf,client/tailscale,cmd/containerboot: optionally enable UDP GRO forwarding for containers (#12410)	5 months ago
netknob	all: update copyright and license headers	2 years ago
netmon	all: add test for package comments, fix, add comments as needed	4 months ago
netns	net/netns: add Windows support for bind-to-interface-by-route	5 months ago
netstat	all: add test for package comments, fix, add comments as needed	4 months ago
netutil	all: add test for package comments, fix, add comments as needed	4 months ago
packet	net/flowtrack: optimize Tuple type for use as map key	5 months ago
ping	net/ping: fix ICMP echo code field to 0	1 year ago
portmapper	all: use math/rand/v2 more	5 months ago
proxymux	all: cleanup unused code, part 1 (#10661)	11 months ago
routetable	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
socks5	net/socks5: add password auth support	2 years ago
sockstats	net/{interfaces,netmon}, all: merge net/interfaces package into net/netmon	7 months ago
speedtest	all: update copyright and license headers	2 years ago
stun	ci: enable checklocks workflow for specific packages	5 months ago
stunserver	all: use Go 1.22 range-over-int	7 months ago
tcpinfo	all: use Go 1.22 range-over-int	7 months ago
tlsdial	tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing	7 months ago
tsaddr	net/ipset, wgengine/filter/filtertype: add split-out packages	5 months ago
tsdial	go.mod: bump bart	4 months ago
tshttpproxy	all: use Go 1.22 range-over-int	7 months ago
tstun	go.mod,net/tstun,wgengine/netstack: implement gVisor TCP GSO for Linux (#12869)	3 months ago
wsconn	ci: enable checklocks workflow for specific packages	5 months ago