[tor-commits] [torspec/master] 276 update w comments from teor

nickm at torproject.org nickm at torproject.org
Mon Feb 27 00:35:38 UTC 2017


commit b1e94492ac661db37fab2efc0182d2b2998d5e3b
Author: Nick Mathewson <nickm at torproject.org>
Date:   Sun Feb 26 19:35:32 2017 -0500

    276 update w comments from teor
---
 proposals/276-lower-bw-granularity.txt | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/proposals/276-lower-bw-granularity.txt b/proposals/276-lower-bw-granularity.txt
index 4d3735c..bca544b 100644
--- a/proposals/276-lower-bw-granularity.txt
+++ b/proposals/276-lower-bw-granularity.txt
@@ -33,20 +33,24 @@ Target: 0.3.1.x-alpha
 
 3. Proposal
 
-   I propose that we round the bandwidth values as they are placed in
-   the votes to two no more than significant digits.  In addition, for
+   I propose that we round the bandwidth values, as they are placed in votes,
+   to no more than two significant digits.  In addition, for
    values beginning with decimal "2" through "4", we should round the
    first two digits the nearest multiple of 2.  For values beginning
    with decimal "5" though "9", we should round to the nearest multiple
    of 5.
 
-   This change does not require a consensus method; it will take effect
-   once enough authorities have upgraded.
+   The change will take effect progressively as authorities upgrade: since
+   the median value is used, when one authority upgrades, 1/5 of the
+   bandwidths will be rounded (on average).
+
+   Once all authorities upgrade, all bandwidths will be rounded like this.
 
 4. Analysis
 
-   The rounding proposed above will not round any value by more than
-   5%, so the overall impact on bandwidth balancing should be small.
+   The rounding proposed above will not round any value by more than 5% more
+   than current rounding, so the overall impact on bandwidth balancing should
+   be small.
 
    In order to assess the bandwidth savings of this approach, I
    smoothed the January 2017 consensus documents' Bandwidth fields,



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