diff -r 4daffae06f64 Lib/xmlrpc/client.py
--- a/Lib/xmlrpc/client.py	Fri Jan 08 01:03:03 2016 -0800
+++ b/Lib/xmlrpc/client.py	Fri Jan 08 17:04:55 2016 +0100
@@ -1306,8 +1306,9 @@
 
         p, u = self.getparser()
 
+        chunk_size = 10 * 1024 * 1024
         while 1:
-            data = stream.read(1024)
+            data = stream.read(chunk_size)
             if not data:
                 break
             if self.verbose: