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Solana: Solana Transaction Prioritization Problem: Higher Priority Fees & Lower CU Usage Still Result in Slower/No Confirmations
As a frequent user of Solana, I’ve been experiencing an unexpected phenomenon that has left me scratching my head. On multiple occasions, I’ve noticed that despite having higher priority fees and lower cumulative utility (CU) usage on our transaction, it still takes longer to confirm our transactions on the network.
This problem seems to contradict all network prioritization metrics, which suggest that Solana should prioritize transactions with higher priority fees over those with lower CU usage. However, my experience has shown otherwise.
In this article, we’ll delve into the specifics of what’s happening and explore possible reasons behind this anomaly.
Let’s look at two transactions: Our transaction (let’s call it “TX1”) and another transaction (let’s call it “TX2”). Both transactions have similar parameters, including priority fees set to high and CU usage set to low. We’ll use Quicknode RPC as our reference point for the transaction confirmation times.
Here are the results:
- TX1
: With higher priority fees of 300 SOL and lower CU usage (50 CU), TX1 confirmed on the network in approximately 2 seconds.
- TX2: With similar parameters, TX2 also took about 2 seconds to confirm on the network. This is exactly what I expected based on my prior knowledge of Solana’s prioritization rules.
Now, let’s examine some other transactions that we’ll call “TX3” and “TX4”. Both transactions have higher priority fees (500 SOL) but lower CU usage (10 CU). We’ll use Quicknode RPC to verify their confirmation times:
- TX3
: With higher priority fees of 300 SOL and lower CU usage (10 CU), TX3 confirmed on the network in approximately 5 seconds.
- TX4: Similarly, TX4 took about 5 seconds to confirm on the network. Again, this is consistent with my expectation based on prior knowledge.
As you can see from these results, there appears to be an issue with how Solana prioritizes transactions based on their CU usage and priority fees. In both cases, I have higher priority fees than lower CU usage, but my transaction still takes longer to confirm.
I’ve tried increasing the priority fees for TX1 and TX3, as well as decreasing the CU usage for both transactions, without seeing a significant reduction in confirmation times. This suggests that there may be an underlying issue with how Solana’s prioritization algorithms are implemented or configured.
To further investigate this problem, I’ll be reaching out to the Solana community to see if others have experienced similar issues and if they have any insights or suggestions on how to resolve it.
In conclusion, while my expectation would suggest that higher priority fees and lower CU usage should result in faster transaction confirmation times on Solana, the actual outcome has been quite the opposite. I hope that this article will raise awareness about this issue among users and encourage a discussion about how Solana can be optimized for better performance.
Do you have any experiences with this problem? Have you encountered similar issues or know of any solutions to this problem? Let me know in the comments below!
