Possible Issues

[bonedaddy]

• Timing leak delays between tx creation and tx submission
  • https://web.getmonero.org/library/Zero-to-Monero-2-0-0.pdf section 7.3.4
  • Reduce minimum fee variability monero-project/research-lab#70

[UkoeHB]

There is a timing problem since the minimum fee, which is used to compute fee priorities, is recomputed each block based on block reward and block weights, and has full precision. It can be partially avoided by rounding the minimum fee to only a couple significant digits, but then you have fingerprinted your implementation.