On Mon, 14 Mar 2016, Yuchung Cheng wrote:

On Thu, Mar 3, 2016 at 10:06 AM, Bendik Rønning Opstad
[off-list ref] wrote:

quoted

Redundant Data Bundling (RDB) is a mechanism for TCP aimed at reducing
the latency for applications sending time-dependent data.

...

quoted

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6a92b15..8f3f3bf 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt

@@ -716,6 +716,21 @@ tcp_thin_dpifl_itt_lower_bound - INTEGER
        calculated, which is used to classify whether a stream is thin.
        Default: 10000

+tcp_rdb - BOOLEAN
+       Enable RDB for all new TCP connections.

  Please describe RDB briefly, perhaps with a pointer to your paper.
   I suggest have three level of controls:
   0: disable RDB completely
   1: enable indiv. thin-stream conn. to use RDB via TCP_RDB socket
options
   2: enable RDB on all thin-stream conn. by default

   currently it only provides mode 1 and 2. but there may be cases where
   the administrator wants to disallow it (e.g., broken middle-boxes).

quoted

+       Default: 0

A per route setting to enable or disable tcp_rdb, overriding
the global setting, could also be useful to the administrator.
Just a suggestion for potential followup work.

					-Bill