Slow Shadowsocks + ShadowTLS on Windows

[soranerai]

Welcome

• [X] Yes, I'm using the latest major release. Only such installations are supported.
• [X] Yes, I'm using the latest Golang release. Only such installations are supported.
• [X] Yes, I've searched similar issues on GitHub and didn't find any.
• [X] Yes, I've included all information below (version, config, log, etc).

Description of the problem

When connecting via sing-box on android, the speed is about 400Mbps, but when connected on windows, the speed is about 30Mbps (both tested with speedtest.net). Server max speed is 1Gbps.

Version of sing-box

windows amd64 version 1.1b4

Server and client configuration file

Client:

{
  "dns": {
     "servers": [
         {
           "tag": "google",
           "address": "tls://1.1.1.1",
           "detour": "direct"
         }
     ],
     "strategy": "ipv4_only"
   },
  "inbounds": [
    {
      "type": "tun",
      "tag": "tun-in",
      "interface_name": "tun0",
      "inet4_address": "172.19.0.1/30",
      "inet6_address": "fdfe:dcba:9876::1/128",
      "mtu": 1500,
      "auto_route": true,
      "strict_route": true,
      "sniff": true,
      "stack": "gvisor"
    }
  ],
  "outbounds": [
    {
      "type": "shadowsocks",
      "tag": "shadowsocks-out",
      "method": "2022-blake3-aes-128-gcm",
      "password": "****",
      "multiplex": {
        "enabled": true,
        "max_connections": 4,
        "min_streams": 4
      },
      "domain_strategy": "ipv4_only",
      "detour": "shadowtls-out"
    },
    {
      "type": "shadowtls",
      "tag": "shadowtls-out",
      "server": "****",
      "server_port": 8443,
      "tls": {
        "enabled": true,
        "server_name": "cloudflare.com"
      }
    },
    {
      "type": "direct",
      "tag": "direct"
    },
    {
      "type": "dns",
      "tag": "dns-out"
    }
  ],
  "route": {
    "rules": [
      {
        "protocol": "dns",
        "outbound": "dns-out"
      }
    ],
    
    "geoip": {
      "path": "geoip.db",
      "download_url": "https://github.com/SagerNet/sing-geoip/releases/latest/download/geoip.db",
      "download_detour": "direct"
    },
	
    "geosite": {
      "path": "geosite.db",
      "download_url": "https://github.com/SagerNet/sing-geosite/releases/latest/download/geosite.db",
      "download_detour": "direct"
    },
	
	"final": "shadowsocks-out",
	"auto_detect_interface": true
  }
}

Server config similar to example in documentation

Server and client log file

the logs are almost identical to the android logs, no errors or crashes, just logs

[nekohasekai]

So you need to switch to linux?

[soranerai]

the solution definitely work 👍

[malikshi]

the solution definitely work 👍

Sir, would you share the iptables rules?

[nekohasekai]

Well, or try the system tun stack in 1.1-beta.

[soranerai]

Well, or try the system tun stack in 1.1-beta.

Tried it, same result. the problem is not in the tunnel i think, direct outbound works at full speed.

[nekohasekai]

Is it the same for the 1.0 stable version?

[soranerai]

yes

[soranerai]

1.1b4 speed: 40mbps 1.0 stable speed: 20mbps

[soranerai]

socks5 speed at 1.1b4 - 130mbps

[github-actions[bot]]

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