status-im/nimbus-eth2
2
0
Fork 0
mirror of https://github.com/status-im/nimbus-eth2.git synced 2025-01-10 14:26:26 +00:00
Code Issues Projects Releases Wiki Activity

simplify FC weight computation (#4892)

Browse Source 
Optimizations from https://github.com/ethereum/consensus-specs/pull/3246
avoid a couple unnecessary divisions when calculating proposer boost.
This commit is contained in:
Etan Kissling 2023-05-09 12:16:13 +02:00 committed by GitHub
parent 5b3c211285
commit 5c5fbc088f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
beacon_chain/fork_choice/proto_array.nim
View File

@ -123,24 +123,12 @@ iterator realizePendingCheckpoints*(
# Reset tip tracking for new epoch
self.currentEpochTips.clear()
# https://github.com/ethereum/consensus-specs/blob/v1.1.10/specs/phase0/fork-choice.md#get_latest_attesting_balance
# https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/fork-choice.md#get_weight
func calculateProposerBoost(validatorBalances: openArray[Gwei]): uint64 =
var
total_balance: uint64
num_validators: uint64
var total_balance: uint64
for balance in validatorBalances:
# We need to filter zero balances here to get an accurate active validator
# count. This is because we default inactive validator balances to zero
# when creating this balances array.
if balance != 0:
total_balance += balance
num_validators += 1
if num_validators == 0:
return 0
let
average_balance = total_balance div num_validators.uint64
committee_size = num_validators div SLOTS_PER_EPOCH
committee_weight = committee_size * average_balance
total_balance += balance
let committee_weight = total_balance div SLOTS_PER_EPOCH
(committee_weight * PROPOSER_SCORE_BOOST) div 100
func applyScoreChanges*(self: var ProtoArray,