Solana: instruction order for prioritization fee

03 Feb Solana: instruction order for prioritization fee

Prioritization Fee Instructions: Understanding the Order

When setting a prioritization fee on Solana, there is an important consideration to keep in mind when determining the correct order for these two instructions. In this article, we will explore the guidelines for setting and executing a prioritization fee instruction.

Understanding the Prioritization Fee

The prioritization fee is a mechanism that allows users of the Solana network to set a priority level for their transactions. This fee is used to incentivize validators on the network to validate transactions in order of priority, ensuring fair distribution of transaction processing capacity.

Setting Instructions: SetComputeUnitLimit and SetComputeUnitPrice

To prioritize the fees received by Solana-based validators, we need to determine the correct order for setting these two instructions. The order is not explicitly defined by official documentation or guidelines from Solana Labs, but there are some general principles that can be applied.

Order Considerations

The order of the two instructions does not matter when it comes to setting prioritization fees. However, it’s essential to consider a few factors:

• Ordering at the beginning

  

  : If you set SetComputeUnitPrice first and then SetComputeUnitLimit, your transaction will be processed with the highest priority possible. This is because SetComputeUnitPrice sets the price of the computed unit (e.g., gas), which affects the transaction’s execution cost, whereas SetComputeUnitLimit limits the number of computations that can be performed.

• Ordering at the end: Conversely, if you set SetComputeUnitLimit first and then SetComputeUnitPrice, your transaction will receive a lower priority.

Conclusion

In summary, when setting prioritization fees on Solana, it’s essential to understand the order of execution for these two instructions: SetComputeUnitLimit and SetComputeUnitPrice. While the order does not matter in terms of the fee structure, it’s crucial to consider the context in which the instructions are executed. By following these guidelines, validators can set their prioritization fees correctly and ensure fair distribution of transaction processing capacity on the Solana network.