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Reduce iOS TCP buffers

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This commit is contained in:
世界 2026-04-07 14:14:19 +08:00
parent 24b12270db
commit 1664d083fb
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GPG key ID: CD109927C34A63C4
1 changed files with 45 additions and 18 deletions
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63
stack_gvisor.go
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@ -87,7 +87,7 @@ func (t *GVisor) Start() error {
return err return err
} }
linkEndpoint = &LinkEndpointFilter{linkEndpoint, t.broadcastAddr, t.tun} linkEndpoint = &LinkEndpointFilter{linkEndpoint, t.broadcastAddr, t.tun}
ipStack, err := NewGVisorStackWithOptions(linkEndpoint, nicOptions, false) ipStack, err := newGVisorStack(linkEndpoint, nicOptions, false, true)
if err != nil { if err != nil {
return err return err
} }
@ -135,6 +135,10 @@ func NewGVisorStack(ep stack.LinkEndpoint) (*stack.Stack, error) {
} }
func NewGVisorStackWithOptions(ep stack.LinkEndpoint, opts stack.NICOptions, allowRawEndpoint bool) (*stack.Stack, error) { func NewGVisorStackWithOptions(ep stack.LinkEndpoint, opts stack.NICOptions, allowRawEndpoint bool) (*stack.Stack, error) {
return newGVisorStack(ep, opts, allowRawEndpoint, false)
}
func newGVisorStack(ep stack.LinkEndpoint, opts stack.NICOptions, allowRawEndpoint bool, isLocalStack bool) (*stack.Stack, error) {
stackOptions := stack.Options{ stackOptions := stack.Options{
NetworkProtocols: []stack.NetworkProtocolFactory{ NetworkProtocols: []stack.NetworkProtocolFactory{
ipv4.NewProtocol, ipv4.NewProtocol,
@ -175,23 +179,46 @@ func NewGVisorStackWithOptions(ep stack.LinkEndpoint, opts stack.NICOptions, all
tcpRecoveryOpt := tcpip.TCPRecovery(0) tcpRecoveryOpt := tcpip.TCPRecovery(0)
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRecoveryOpt) err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRecoveryOpt)
} }
tcpRXBufOpt := tcpip.TCPReceiveBufferSizeRangeOption{ if isLocalStack || runtime.GOOS == "ios" {
Min: tcpRXBufMinSize, const iOSBufferDefault = 1 << 15
Default: tcpRXBufDefSize, const iOSBufferMax = 1 << 17
Max: tcpRXBufMaxSize, tcpRXBufOpt := tcpip.TCPReceiveBufferSizeRangeOption{
} Min: tcpRXBufMinSize,
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRXBufOpt) Default: iOSBufferDefault,
if err != nil { Max: iOSBufferMax,
return nil, gonet.TranslateNetstackError(err) }
} err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRXBufOpt)
tcpTXBufOpt := tcpip.TCPSendBufferSizeRangeOption{ if err != nil {
Min: tcpTXBufMinSize, return nil, gonet.TranslateNetstackError(err)
Default: tcpTXBufDefSize, }
Max: tcpTXBufMaxSize, tcpTXBufOpt := tcpip.TCPSendBufferSizeRangeOption{
} Min: tcpTXBufMinSize,
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpTXBufOpt) Default: iOSBufferDefault,
if err != nil { Max: iOSBufferMax,
return nil, gonet.TranslateNetstackError(err) }
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpTXBufOpt)
if err != nil {
return nil, gonet.TranslateNetstackError(err)
}
} else {
tcpRXBufOpt := tcpip.TCPReceiveBufferSizeRangeOption{
Min: tcpRXBufMinSize,
Default: tcpRXBufDefSize,
Max: tcpRXBufMaxSize,
}
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpRXBufOpt)
if err != nil {
return nil, gonet.TranslateNetstackError(err)
}
tcpTXBufOpt := tcpip.TCPSendBufferSizeRangeOption{
Min: tcpTXBufMinSize,
Default: tcpTXBufDefSize,
Max: tcpTXBufMaxSize,
}
err = ipStack.SetTransportProtocolOption(tcp.ProtocolNumber, &tcpTXBufOpt)
if err != nil {
return nil, gonet.TranslateNetstackError(err)
}
} }
return ipStack, nil return ipStack, nil
} }