SIMD-0096
Reward full priority fee to validator
Feature Gate Status
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TL;DR
Reward 100% of priority fee to validator.
Summary
Reward 100% of priority fee to validator.
Motivation
To better align validator incentives, priority fee should change from current 50% burn 50% reward to 100% reward to validator.
Key Changes
- When calculate fee for SanitizedMessage, it should separate prioritization_fee
- change FeeStructure.calculate_fee()
- During fee collection, priority fees are accumulated separately from transaction
- change bank.collector_fees and bank.filter_program_errors_and_collect_fee()
- When distributing collected fees, the collector_id receives the sum of priority
- Change bank.distribute_transaction_fee()
- No change to fee payer account validation;
- No change to how much transaction would be paying in total;
Impact
The implemented proposal aims to enhance incentives for validators to prioritize transactions with higher priority fees, thereby providing more substantial compensation for the validators' efforts in processing higher-paying transactions.
Backwards Compatibility
The implementation of this proposal necessitates the use of a feature gate. Although there will be no alteration to the transaction submitter's payment structure, the software incorporating the proposal will allocate a greater portion of fees to the leader compared to other versions. Consequently, a feature gate is essential to ensure that all validators transition to the new functionality at the epoch boundary, thereby preserving consensus.
Security Considerations
None