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| author | Kim Alvefur <zash@zash.se> | 2021-07-08 12:29:50 +0200 |
|---|---|---|
| committer | Kim Alvefur <zash@zash.se> | 2021-07-08 12:29:50 +0200 |
| commit | 575b997d1dd13d4295e5bc2f612f8f639c5d9a60 (patch) | |
| tree | 33617d7b049d804958e91765e1bb4392eec1cff1 | |
| parent | 11017d1130b99b5d0979cf8393ebc2446bea82af (diff) | |
| download | prosody-575b997d1dd13d4295e5bc2f612f8f639c5d9a60.tar.gz prosody-575b997d1dd13d4295e5bc2f612f8f639c5d9a60.zip | |
net.server_epoll: Add support for TCP Fast Open
Requires a patch to LuaSocket adding this socket option,
https://github.com/lunarmodules/luasocket/pull/378
sysctl tweaks
net.ipv4.tcp_fastopen=3
net.ipv4.tcp_fastopen_blackhole_timeout_sec = 0
net.ipv4.tcp_fastopen_key=$(</proc/sys/kernel/random/uuid)
Disabled by default since it an advanced performance tweak unlikely to
be needed by most servers.
| -rw-r--r-- | CHANGES | 1 | ||||
| -rw-r--r-- | net/server_epoll.lua | 9 |
2 files changed, 10 insertions, 0 deletions
@@ -11,6 +11,7 @@ TRUNK - Honour 'weight' parameter during SRV record selection - Support for RFC 8305 "Happy Eyeballs" to improve IPv4/IPv6 connectivity +- Support for TCP Fast Open in server_epoll (pending LuaSocket support) 0.12.0 ====== diff --git a/net/server_epoll.lua b/net/server_epoll.lua index 8e75e072..07fb6dd9 100644 --- a/net/server_epoll.lua +++ b/net/server_epoll.lua @@ -92,6 +92,9 @@ local default_config = { __index = { --- How long to wait after getting the shutdown signal before forcefully tearing down every socket shutdown_deadline = 5; + + -- TCP Fast Open + tcp_fastopen = false; }}; local cfg = default_config.__index; @@ -906,6 +909,9 @@ local function wrapserver(conn, addr, port, listeners, config) log = logger.init(("serv%s"):format(new_id())); }, interface_mt); server:debug("Server %s created", server); + if cfg.tcp_fastopen then + server:setoption("tcp-fastopen", cfg.tcp_fastopen); + end server:add(true, false); return server; end @@ -962,6 +968,9 @@ local function addclient(addr, port, listeners, read_size, tls_ctx, typ, extra) if not conn then return conn, err; end local ok, err = conn:settimeout(0); if not ok then return ok, err; end + if cfg.tcp_fastopen then + pcall(conn.setoption, conn, "tcp-fastopen-connect", 1); + end local ok, err = conn:setpeername(addr, port); if not ok and err ~= "timeout" then return ok, err; end local client = wrapsocket(conn, nil, read_size, listeners, tls_ctx, extra) |