SIMD-0175
Disable Partitioned Rent Updates
Feature Gate Status
2B2SBNbUcr438LtGXNcJNBP2GBSxjx81F945SdSkUSfC
TL;DR
Partitioned rent collection should be removed since it will no longer be useful after rent collection is disabled by https://github.com/solana-labs/solana/issues/33946 (https://github.com/solana-foundation/solana-improvement-documents/pull/84) and account rewrites are disabled by https://github.com/solana-labs/solana/issues/26599.
Summary
Partitioned rent collection should be removed since it will no longer be useful after rent collection is disabled by https://github.com/solana-labs/solana/issues/33946 (https://github.com/solana-foundation/solana-improvement-documents/pull/84) and account rewrites are disabled by https://github.com/solana-labs/solana/issues/26599.
Motivation
Since partitioned rent collection is no longer necessary for collecting rent or updating the account rent epoch field, it should be removed to speed up block production and block replay.
Impact
Improved block processing performance by removing the need to load all accounts once per epoch for no good reason. Note that the epoch accounts hash calculation similarly loads all accounts once per epoch but serves the important role of ensuring that all validators have the same set of account state.
Backwards Compatibility
*(Optional)* Changes require feature gates for activation to avoid any backwards incompatiblity
Security Considerations
Rent related code changes often come along with a lot of edge cases to consider so changes should be made carefully to avoid introducing any bugs.