openstack/deb-ryu
Code Issues Proposed changes

of: set TCP_NODELAY for secure channel socket

Browse Source 
Due to Nagle, an OF message that an application sends might be not
delivered to a switch immediately. This patch disables Nagle. This has
bad effect on throughput. I think that the latency matters for any
management channel. To avoid throughput drop, we could use TCP_CORK on
Linux but it's linux specific.

Reviewed-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
FUJITA Tomonori 2014-03-25 20:31:29 +09:00
parent e33a59554d
commit 0d377522a8
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
ryu/controller/controller.py
View File

@ -22,6 +22,7 @@ from ryu.lib.hub import StreamServer
import traceback import traceback
import random import random
import ssl import ssl
from socket import IPPROTO_TCP, TCP_NODELAY
import ryu.base.app_manager import ryu.base.app_manager
@ -101,6 +102,7 @@ class Datapath(ofproto_protocol.ProtocolDesc):
super(Datapath, self).__init__() super(Datapath, self).__init__()
self.socket = socket self.socket = socket
self.socket.setsockopt(IPPROTO_TCP, TCP_NODELAY, 1)
self.address = address self.address = address
self.is_active = True self.is_active = True