@@ -1292,8 +1292,8 @@ async def _sendfile_fallback(self, transp, file, offset, count):
                 read = await self.run_in_executor(None, file.readinto, view)
                 if not read:
                     return total_sent  # EOF
-                await proto.drain()
                 transp.write(view[:read])
+                await proto.drain()
                 total_sent += read
         finally:
             if total_sent > 0 and hasattr(file, 'seek'):
 
@@ -0,0 +1 @@
+Fix sendfile fallback implementation to drain data after writing to transport in :mod:`asyncio`.
Original file line number	Diff line number	Diff line change
@@ -0,0 +1 @@
	1	+ Fix sendfile fallback implementation to drain data after writing to transport in :mod:`asyncio`.