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Tweak input/output/kernel weights (1/21/3) (#2006)

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Antioch Peverell 2018-11-24 20:32:08 +00:00 committed by Ignotus Peverell
parent 5992542152
commit 71342d11b1
1 changed files with 10 additions and 11 deletions
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19
core/src/consensus.rs
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@ -104,24 +104,23 @@ pub const STATE_SYNC_THRESHOLD: u32 = 2 * DAY_HEIGHT as u32;
pub const BLOCK_INPUT_WEIGHT: usize = 1;
/// Weight of an output when counted against the max block weight capacity
pub const BLOCK_OUTPUT_WEIGHT: usize = 10;
pub const BLOCK_OUTPUT_WEIGHT: usize = 21;
/// Weight of a kernel when counted against the max block weight capacity
pub const BLOCK_KERNEL_WEIGHT: usize = 2;
pub const BLOCK_KERNEL_WEIGHT: usize = 3;
/// Total maximum block weight. At current sizes, this means a maximum
/// theoretical size of:
/// * `(674 + 33 + 1) * 4_000 = 2_832_000` for a block with only outputs
/// * `(1 + 8 + 8 + 33 + 64) * 20_000 = 2_280_000` for a block with only kernels
/// * `(674 + 33 + 1) * (40_000 / 21) = 1_348_571` for a block with only outputs
/// * `(1 + 8 + 8 + 33 + 64) * (40_000 / 3) = 1_520_000` for a block with only kernels
/// * `(1 + 33) * 40_000 = 1_360_000` for a block with only inputs
///
/// Given that a block needs to have at least one kernel for the coinbase,
/// and one kernel for the transaction, practical maximum size is 2_831_440,
/// (ignoring the edge case of a miner producing a block with all coinbase
/// outputs and a single kernel).
/// Regardless of the relative numbers of inputs/outputs/kernels in a block the maximum
/// block size is around 1.5MB
/// For a block full of "average" txs (2 inputs, 2 outputs, 1 kernel) we have -
/// `(1 * 2) + (21 * 2) + (3 * 1) = 47` (weight per tx)
/// `40_000 / 47 = 851` (txs per block)
///
/// A more "standard" block, filled with transactions of 2 inputs, 2 outputs
/// and one kernel, should be around 2.66 MB
pub const MAX_BLOCK_WEIGHT: usize = 40_000;
/// Fork every 6 months.