[prev in list] [next in list] [prev in thread] [next in thread] 

List:       ipng
Subject:    Re: Preliminary report on flow label hash algorithms
From:       Brian E Carpenter <brian.e.carpenter () gmail ! com>
Date:       2011-06-19 19:48:52
Message-ID: 4DFE52A4.2040207 () gmail ! com
[Download RAW message or body]

A small update on this:

1. David Malone found a bug in my C code, which changes the conclusion.
Of the algorithms I tried, the one designated #2 apparently performs best
of the three, once the bug is fixed. I can't complete the tests and post
an updated report until mid-July, due to travel.

2. From the feedback I've received, it's clear that there is great scope
for experimenting with various algorithms to find the best one. Assuming
we leave an example algorithm in the draft, the text needs to make this
clear. We can wait for the Area Director's review before deciding what
to do about this.

Regards
   Brian

On 2011-06-01 17:13, Brian E Carpenter wrote:
> In summary: the algorithm suggested in the Appendix to
> draft-ietf-6man-flow-3697bis-04 doesn't perform very well
> on real packets, and I have an improved version to suggest.
> 
> This doesn't affect the normative text in the draft, so I
> believe it can be fixed.
> 
> The full story, with fonts, tables and pictures:
> 
> http://www.cs.auckland.ac.nz/~brian/flowhash.html
> 
--------------------------------------------------------------------
IETF IPv6 working group mailing list
ipv6@ietf.org
Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
--------------------------------------------------------------------
[prev in list] [next in list] [prev in thread] [next in thread]