[squid-dev] [RFC] CRUSH peer selection method

[Alex Rousskov]

On 04/18/2017 01:00 AM, Loic Dachary wrote:

> It turns out [CARP] performs as well as CRUSH


On 04/19/2017 06:51 AM, Loic Dachary wrote:

> I found one use case where CRUSH behaves significantly better than CARP.


FYI, here is how the above statements can be interpreted: "It is all a
mystery to us. Sometimes CRUSH and CARP are about the same, sometimes
one of the algorithms wins, but we cannot tell you when to use CARP or
CRUSH because we cannot generalize their differences. Our experimental
data does not suggest any clear trends."

That unpredictability may be the nature of the beast, of course, but I
currently see no reasoning or experimental data to confirm or deny that
sad hypothesis.

Alex.