From 58eaa330aff16ca5fb47d0baafcbd1136d239da4 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Wed, 6 May 2026 00:12:21 +0200
Subject: [PATCH] Set TCP_NODELAY on profiler data channel.

---
 public/common/TracySocket.cpp | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/public/common/TracySocket.cpp b/public/common/TracySocket.cpp
index 767593f6..b18846b6 100644
--- a/public/common/TracySocket.cpp
+++ b/public/common/TracySocket.cpp
@@ -31,6 +31,7 @@
 #  include <errno.h>
 #  include <fcntl.h>
 #  include <netinet/in.h>
+#  include <netinet/tcp.h>
 #  include <netdb.h>
 #  include <unistd.h>
 #  include <poll.h>
@@ -70,6 +71,18 @@ void InitWinSock()
 #endif
 
 
+static void SetNoDelay( int sock )
+{
+#ifdef _WIN32
+    unsigned long val = 1;
+    setsockopt( sock, IPPROTO_TCP, TCP_NODELAY, (const char*)&val, sizeof( val ) );
+#else
+    int val = 1;
+    setsockopt( sock, IPPROTO_TCP, TCP_NODELAY, &val, sizeof( val ) );
+#endif
+}
+
+
 constexpr size_t BufSize = 128 * 1024;
 
 Socket::Socket()
@@ -150,6 +163,7 @@ bool Socket::Connect( const char* addr, uint16_t port )
         int flags = fcntl( m_connSock, F_GETFL, 0 );
         fcntl( m_connSock, F_SETFL, flags & ~O_NONBLOCK );
 #endif
+        SetNoDelay( m_connSock );
         m_sock.store( m_connSock, std::memory_order_relaxed );
         freeaddrinfo( m_res );
         m_ptr = nullptr;
@@ -218,7 +232,7 @@ bool Socket::Connect( const char* addr, uint16_t port )
     int flags = fcntl( sock, F_GETFL, 0 );
     fcntl( sock, F_SETFL, flags & ~O_NONBLOCK );
 #endif
-
+    SetNoDelay( sock );
     m_sock.store( sock, std::memory_order_relaxed );
     return true;
 }
@@ -529,6 +543,8 @@ Socket* ListenSocket::Accept()
         setsockopt( sock, SOL_SOCKET, SO_NOSIGPIPE, &val, sizeof( val ) );
 #endif
 
+        SetNoDelay( sock );
+
         auto ptr = (Socket*)tracy_malloc( sizeof( Socket ) );
         new(ptr) Socket( sock );
         return ptr;