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https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake.git
synced 2025-10-13 11:11:30 -04:00
Increase smux and QueuePacketConn buffer sizes
This should increase the maximum amount of inflight data and hopefully the performance of Snowflake, especially for clients geographically distant from proxies and the server.
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parent
b203a75c41
commit
e6715cb4ee
3 changed files with 14 additions and 3 deletions
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@ -16,6 +16,11 @@ import (
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"golang.org/x/net/http2"
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)
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const (
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WindowSize = 65535
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StreamSize = 1048576 //1MB
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)
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// Transport is a structure with methods that conform to the Go PT v2.1 API
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// https://github.com/Pluggable-Transports/Pluggable-Transports-spec/blob/master/releases/PTSpecV2.1/Pluggable%20Transport%20Specification%20v2.1%20-%20Go%20Transport%20API.pdf
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type Transport struct {
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@ -168,6 +173,7 @@ func (l *SnowflakeListener) acceptStreams(conn *kcp.UDPSession) error {
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smuxConfig := smux.DefaultConfig()
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smuxConfig.Version = 2
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smuxConfig.KeepAliveTimeout = 10 * time.Minute
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smuxConfig.MaxStreamBuffer = StreamSize
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sess, err := smux.Server(conn, smuxConfig)
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if err != nil {
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return err
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@ -201,7 +207,7 @@ func (l *SnowflakeListener) acceptSessions(ln *kcp.Listener) error {
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conn.SetStreamMode(true)
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// Set the maximum send and receive window sizes to a high number
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// Removes KCP bottlenecks: https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40026
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conn.SetWindowSize(65535, 65535)
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conn.SetWindowSize(WindowSize, WindowSize)
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// Disable the dynamic congestion window (limit only by the
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// maximum of local and remote static windows).
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conn.SetNoDelay(
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