[Cake] Fwd: curious about hashing comments on cake

Dave Taht dave.taht at gmail.com
Fri Jan 8 15:58:51 EST 2016


---------- Forwarded message ----------
From: Dave Acker <soldack at gmail.com>
Date: Fri, Jan 8, 2016 at 12:48 PM
Subject: curious about hashing comments on cake
To: dave.taht at gmail.com


On http://www.bufferbloat.net/projects/codel/wiki/CakeTechnical, it
says that the hash used by fq_codel had various issues and that "we
have also found that the hash function fq_codel relies on is
suboptimal."  I believe that fq_codel uses the Jenkins hash like many
other parts of linux.  What was suboptimal about it?  The page notes
the birthday problem but was there anything else?
-Dave Acker


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