From: Sergio Demian Lerner <sergio.d.lerner@gmail•com>
To: Matt Corallo <lf-lists@mattcorallo•com>
Cc: bitcoin-dev <bitcoin-dev@lists•linuxfoundation.org>
Subject: Re: [bitcoin-dev] Some real-world results about the current Segwit Discount
Date: Tue, 9 May 2017 16:15:32 -0300 [thread overview]
Message-ID: <CAKzdR-pN0B-wjhPh3n6Jw7L6wsz9yQ=kyVX7NYx5ACZC3bg8OA@mail.gmail.com> (raw)
In-Reply-To: <CAKzdR-pyE2f0jdsU+QGbJQ9gMepsyS880kntE9MRvDBLG_Nchg@mail.gmail.com>
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Let n be the non-segwit bytes. Let the seg/noseg ratio be 1.7.
Segwit with 75% discount: (let WITNESS_SCALE_FACTOR=4)
n*WITNESS_SCALE_FACTOR+n*1.7 = 4,000,000
Then n=4,000,000 / 5.7 = 701K
Average block size = 701K*(1+1.7)=1.8 Mbytes
Maximum block size = 4 MBytes
Segwit with 50% discount + 2MB HF: (let WITNESS_SCALE_FACTOR=2)
n*2+n*1.7 = 4,000,000
n = 4,000,000/ 3.7 = 1.08M
Average block size = 1.08M*(1+1.7)=2.9 Mbytes
Maximum block size = 4 MBytes
The capacity of Segwit(50%)+2MbHF is 50% more than Segwit, and the maximum
block size is the same.
On Tue, May 9, 2017 at 3:58 PM, Sergio Demian Lerner <
sergio.d.lerner@gmail•com> wrote:
>
>>
>> You suggested "If the maximum block weight is set to 2.7M, each byte of
>> non-witness block costs 1.7", but these numbers dont work out - setting
>> the discount to 1.7 gets you a maximum block size of 1.7MB (in a soft
>> fork), not 2.7MB.
>
>
> Yes. In a soft-fork is true.
> I was thinking about what a HF could do to optimize the balance, and I
> forgot I was in the context of a SF.
>
>
>
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next prev parent reply other threads:[~2017-05-09 19:16 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-08 22:42 Sergio Demian Lerner
2017-05-08 23:47 ` Alphonse Pace
2017-05-09 13:49 ` Sergio Demian Lerner
2017-05-09 14:33 ` James Hilliard
2017-05-09 15:45 ` Johnson Lau
2017-05-09 16:19 ` Sergio Demian Lerner
2017-05-09 16:27 ` Johnson Lau
2017-05-09 16:27 ` James Hilliard
2017-05-09 18:15 ` Matt Corallo
2017-05-09 18:58 ` Sergio Demian Lerner
2017-05-09 19:15 ` Sergio Demian Lerner [this message]
2017-05-09 19:30 ` Gregory Maxwell
2017-05-09 19:42 ` Matt Corallo
2017-05-09 20:13 ` Gregory Maxwell
2017-05-09 20:58 ` Sergio Demian Lerner
2017-05-10 5:37 ` Jorge Timón
2017-05-10 14:05 ` Matt Corallo
2017-05-10 15:25 ` Sergio Demian Lerner
2017-05-10 16:39 ` Matt Corallo
2017-05-10 19:40 ` Sergio Demian Lerner
2017-05-08 23:56 ` Gregory Maxwell
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