Simply put
- If approved, the Solana block will be dynamically expandable, rather than being capped.
- Validators with powerful machines can discard oversized blocks through skip boats.
- Supporters are seeing increased throughput, while critics warn of risks associated with centralization.
The developers behind Solana are weighing a new proposal that aims to remove restrictions on block size once the upcoming Alpenglow upgrade is activated. This change seeks to enhance the network’s throughput by better leveraging validator hardware.
The proposal, put forth on Friday as SIMD-0370, suggests eliminating the limit on 60 million computing units in Solana. This would allow block sizes to be adjusted dynamically, meaning blocks could accommodate as many transactions as the most efficient validators can handle.
Solana validators are independent entities operating nodes to process transactions, safeguard the network, and earn rewards through staking and transaction fees.
Lifting the cap on Solana blocks could boost throughput by enabling more powerful validators to handle greater numbers of transactions. However, this shift may also skew the rewards towards those with larger, more advanced machines.
The document from Jump Crypto’s Firedancer Development team states, “The current incentive structure for Validator clients and program developers is broken.” They argue that network capacity is determined by arbitrary limits rather than the actual capabilities of the hardware.
Jump Crypto, a division of the Chicago-based Jump Trading Group, recently participated in a significant $1.65 billion investment aimed at strengthening Solana’s public strategy in retaining and deploying Solana Tokens at scale.
Pushback of proposals
However, this proposal has ignited discussions among developers and community members on GitHub.
Some participants caution that lifting the cap might unfairly advantage well-funded operators capable of using high-end hardware, thereby marginalizing smaller validators and heightening centralization risks.
Others expressed concerns that excessively large blocks could lead to delays or might weaken the network if validators opt out of voting during heavy loads. The Jump Crypto team has not provided a response to these comments yet.
The Alpenglow Upgrade for Solana introduces a Skip-Vote feature, which allows smaller validators to withdraw from blocks they can’t manage, helping to maintain consensus even during peak times.
Expected later this year, Alpenglow aims to reduce block finality from around 12.8 seconds to approximately 150 milliseconds while adding features like skip voting.
Firedancer’s proposal connects Solana’s capabilities to the performance of validators, rather than the protocol’s predetermined ceilings.
