cbench results before the change:
cbench
RESULT: 16 switches 15 tests min/max/avg/stdev = 8257.99/8485.97/8348.71/70.46 
responses/s
cbench -t
RESULT: 16 switches 15 tests min/max/avg/stdev = 
8050.82/20660.79/14935.69/3820.58 responses/s

after:
cbench
RESULT: 16 switches 15 tests min/max/avg/stdev = 8667.97/8952.98/8784.83/100.40 
responses/s
cbench -t
RESULT: 16 switches 15 tests min/max/avg/stdev = 
7519.74/26297.58/16418.37/7023.93 responses/s

Signed-off-by: YAMAMOTO Takashi <[email protected]>
---
 ryu/controller/controller.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ryu/controller/controller.py b/ryu/controller/controller.py
index 9dc745a..1e029e9 100644
--- a/ryu/controller/controller.py
+++ b/ryu/controller/controller.py
@@ -155,7 +155,7 @@ class Datapath(object):
 
         count = 0
         while self.is_active:
-            ret = self.socket.recv(required_len)
+            ret = self.socket.recv(4096)
             if len(ret) == 0:
                 self.is_active = False
                 break
-- 
1.7.12


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