Try 128 minimum

Author: lhoguin

deps/rabbit/src/rabbit_networking.erl

@@ -571,7 +571,7 @@ handshake(Ref, ProxyProtocolEnabled) ->
 
 tune_buffer_size(Sock) ->
 %    case tune_buffer_size1(Sock) of
-    case rabbit_net:setopts(Sock, [{buffer, 1024}]) of
+    case rabbit_net:setopts(Sock, [{buffer, 128}]) of
         ok         -> ok;
         {error, _} -> rabbit_net:fast_close(Sock),
                       exit(normal)

deps/rabbit/src/rabbit_reader.erl

@@ -101,7 +101,7 @@
           throttle,
           proxy_socket,
           %% dynamic buffer
-          dynamic_buffer_size = 1024,
+          dynamic_buffer_size = 128,
           dynamic_buffer_moving_average = 0
 }).
 
@@ -543,7 +543,7 @@ mainloop(Deb, Buf, BufLen, State = #v1{sock = Sock,
 
 maybe_resize_buffer(State=#v1{sock=Sock, dynamic_buffer_size=BufferSize0,
         dynamic_buffer_moving_average=MovingAvg0}, Data) ->
-    LowDynamicBuffer = 1024,
+    LowDynamicBuffer = 128,
     HighDynamicBuffer = 131072,
     DataLen = byte_size(Data),
     MovingAvg = (MovingAvg0 * 31 + DataLen) div 32,