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Vitalik Buterin 2019-10-29 11:12:55 -07:00 committed by Danny Ryan
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specs/core/1_new_shards.md
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@ -61,8 +61,8 @@ This document describes the shard transition function (data layer only) and the
| `SHARD_BLOCK_OFFSETS` | `[1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233]` | | | `SHARD_BLOCK_OFFSETS` | `[1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233]` | |
| `MAX_SHARD_BLOCKS_PER_ATTESTATION` | `len(SHARD_BLOCK_OFFSETS)` | | | `MAX_SHARD_BLOCKS_PER_ATTESTATION` | `len(SHARD_BLOCK_OFFSETS)` | |
| `EMPTY_CHUNK_ROOT` | `hash_tree_root(BytesN[SHARD_BLOCK_CHUNK_SIZE]())` | | | `EMPTY_CHUNK_ROOT` | `hash_tree_root(BytesN[SHARD_BLOCK_CHUNK_SIZE]())` | |
| `MAX_SHARD_GASPRICE` | `2**14` (= 16,384) | Gwei | | | `MAX_GASPRICE` | `2**14` (= 16,384) | Gwei | |
| `SHARD_GASPRICE_ADJUSTMENT_COEFFICIENT` | `2**3` (= 8) | | | `GASPRICE_ADJUSTMENT_COEFFICIENT` | `2**3` (= 8) | |
## Containers ## Containers
@ -203,12 +203,12 @@ def get_indexed_attestation(beacon_state: BeaconState, attestation: Attestation)
```python ```python
def update_gasprice(prev_gasprice: Gwei, length: uint8) -> Gwei: def update_gasprice(prev_gasprice: Gwei, length: uint8) -> Gwei:
if length > BLOCK_SIZE_TARGET: if length > BLOCK_SIZE_TARGET:
delta = prev_gasprice * (length - BLOCK_SIZE_TARGET) // BLOCK_SIZE_TARGET // SHARD_GASPRICE_ADJUSTMENT_COEFFICIENT delta = prev_gasprice * (length - BLOCK_SIZE_TARGET) // BLOCK_SIZE_TARGET // GASPRICE_ADJUSTMENT_COEFFICIENT
return min(prev_gasprice + delta, MAX_SHARD_GASPRICE) return min(prev_gasprice + delta, MAX_GASPRICE)
else: else:
delta = prev_gasprice * (BLOCK_SIZE_TARGET - length) // BLOCK_SIZE_TARGET // SHARD_GASPRICE_ADJUSTMENT_COEFFICIENT delta = prev_gasprice * (BLOCK_SIZE_TARGET - length) // BLOCK_SIZE_TARGET // GASPRICE_ADJUSTMENT_COEFFICIENT
if delta > prev_gasprice - SHARD_GASPRICE_ADJUSTMENT_COEFFICIENT: if delta > prev_gasprice - GASPRICE_ADJUSTMENT_COEFFICIENT:
return SHARD_GASPRICE_ADJUSTMENT_COEFFICIENT return GASPRICE_ADJUSTMENT_COEFFICIENT
else: else:
return prev_gasprice - delta return prev_gasprice - delta
``` ```