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From: Bryan Bishop <kanzure@gmail.com>
To: Matt Whitlock <bip@mattwhitlock.name>, Bryan Bishop <kanzure@gmail.com>
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] Proposed alternatives to the 20MB step function
Date: Fri, 8 May 2015 11:55:42 -0500	[thread overview]
Message-ID: <CABaSBaweJyQUdMDiegOs0U26dMto-VZt-PB8p5a+3vgyLqoGfA@mail.gmail.com> (raw)
In-Reply-To: <16096345.A1MpJQQkRW@crushinator>

On Fri, May 8, 2015 at 2:20 AM, Matt Whitlock <bip@mattwhitlock.name> wrote:
> - Perhaps the hard block size limit should be a function of the actual block sizes over some
> trailing sampling period. For example, take the median block size among the most recent
> 2016 blocks and multiply it by 1.5. This allows Bitcoin to scale up gradually and organically,
> rather than having human beings guessing at what is an appropriate limit.

Block contents can be grinded much faster than hashgrinding and
mining. There is a significant run-away effect there, and it also
works in the gradual sense as a miner probabilistically mines large
blocks that get averaged into that 2016 median block size computation.
At least this proposal would be a slower way of pushing out miners and
network participants that can't handle 100 GB blocks immediately..  As
the size of the blocks are increased, low-end hardware participants
have to fall off the network because they no longer meet the minimum
performance requirements. Adjustment might become severely mismatched
with general economic trends in data storage device development or
availability or even current-market-saturation of said storage
devices. With the assistance of transaction stuffing or grinding, that
2016 block median metric can be gamed to increase faster than other
participants can keep up with or, perhaps worse, in a way that was
unintended by developers yet known to be a failure mode. These are
just some issues to keep and mind and consider.

- Bryan
http://heybryan.org/
1 512 203 0507



  parent reply	other threads:[~2015-05-08 16:55 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-08  7:20 [Bitcoin-development] Proposed alternatives to the 20MB step function Matt Whitlock
2015-05-08 10:15 ` Mike Hearn
2015-05-08 10:30 ` Clément Elbaz
2015-05-08 12:32   ` Joel Joonatan Kaartinen
2015-05-08 12:48     ` Matt Whitlock
2015-05-08 13:24       ` Matt Whitlock
2015-05-08 12:48     ` Gavin Andresen
2015-05-08 16:51     ` Peter Todd
2015-05-08 22:36       ` Joel Joonatan Kaartinen
2015-05-09 18:30         ` Peter Todd
2015-05-08 15:57 ` Alex Mizrahi
2015-05-08 16:55 ` Bryan Bishop [this message]
2015-05-08 20:33 ` Mark Friedenbach
2015-05-08 22:43   ` Aaron Voisine
2015-05-08 22:45     ` Mark Friedenbach
2015-05-08 23:15       ` Aaron Voisine
2015-05-08 23:58         ` Mark Friedenbach
2015-05-09  3:36   ` Gregory Maxwell
2015-05-09 11:58     ` Gavin Andresen
2015-05-09 13:49       ` Tier Nolan
2015-05-10 17:36     ` Owen Gunden
2015-05-10 18:10       ` Mark Friedenbach
2015-05-10 21:21     ` Gavin Andresen
2015-05-10 21:33       ` Gregory Maxwell
2015-05-10 21:56       ` Rob Golding
2015-05-13 10:43     ` Tier Nolan
2015-05-16  0:22       ` Rusty Russell
2015-05-16 11:09         ` Tier Nolan
2015-05-18  1:42           ` Rusty Russell
2015-05-19  8:59             ` Tier Nolan
2015-05-10 21:48   ` Thomas Voegtlin
2015-05-10 22:31     ` Mark Friedenbach
2015-05-10 23:11       ` Thomas Voegtlin
2015-05-28 15:53 ` Gavin Andresen
2015-05-28 17:05   ` Mike Hearn
2015-05-28 17:19     ` Gavin Andresen
2015-05-28 17:34       ` Mike Hearn
2015-05-28 18:23         ` Gavin Andresen
2015-05-29 11:26           ` Mike Hearn
2015-05-29 11:42             ` Tier Nolan
2015-05-29 11:57               ` Mike Hearn
2015-05-29 12:39                 ` Gavin Andresen
2015-05-29 14:00                   ` insecurity
2015-05-29 14:15                     ` Braun Brelin
2015-05-29 14:09                   ` Tier Nolan
2015-05-29 14:20                     ` Gavin Andresen
2015-05-29 14:22                       ` Mike Hearn
2015-05-29 14:21                     ` Mike Hearn
2015-05-29 14:22                     ` Tier Nolan
2015-05-29 16:39                       ` [Bitcoin-development] Proposed alternatives to the 20MB stepfunction Raystonn .
2015-05-29 18:28                         ` Tier Nolan
2015-05-29 17:53                   ` [Bitcoin-development] Proposed alternatives to the 20MB step function Admin Istrator
2015-05-30  9:03                     ` Aaron Voisine
2015-06-01 11:30                       ` Ricardo Filipe
2015-06-01 11:46                         ` Marcel Jamin
2015-05-29 18:47                   ` Bryan Cheng
2015-05-30  1:36                     ` Cameron Garnham
2015-05-28 17:39       ` [Bitcoin-development] Proposed alternatives to the 20MB stepfunction Raystonn .
2015-05-28 17:59         ` Pieter Wuille
2015-05-28 18:21           ` Gavin Andresen
2015-05-28 17:50       ` [Bitcoin-development] Proposed alternatives to the 20MB step function Peter Todd
2015-05-28 17:14   ` Thomas Voegtlin
2015-05-28 17:34   ` Pieter Wuille
2015-05-29 17:45   ` Aaron Voisine
2015-05-08 14:57 Steven Pine
2015-05-09  0:13 Raystonn
     [not found] <CAAjy6kDdB8uODpPcmS8h4eap8fke7Y2y773NHJZja8tB5mPk4Q@mail.gmail.com>
2015-05-28 16:30 ` Steven Pine
     [not found]   ` <CABsx9T03aNRC5DRbR06nNtsiBdJAcQsGAHvbCOe3pnuRpdvq5w@mail.gmail.com>
2015-05-28 18:25     ` Steven Pine
2015-05-28 18:31       ` Gavin Andresen

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