[bitcoin-dev] Managing block size the same way we do difficulty (aka Block75)
pieter.wuille at gmail.com
Sat Dec 10 17:39:57 UTC 2016
On Sat, Dec 10, 2016 at 4:23 AM, Daniele Pinna via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:
> We have models for estimating the probability that a block is orphaned
> given average network bandwidth and block size.
> The question is, do we have objective measures of these two quantities?
> Couldn't we target an orphan_rate < max_rate?
Models can predict orphan rate given block size and network/hashrate
topology, but you can't control the topology (and things like FIBRE hide
the effect of block size on this as well). The result is that if you're
purely optimizing for minimal orphan rate, you can end up with a single
(conglomerate of) pools producing all the blocks. Such a setup has no
propagation delay at all, and as a result can always achieve 0 orphans.
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