Package aware Fee estimator post cluster mempool

Implementation
8

I think you could have an arrangement:

  • T=0600 chunk: A, feerate 20 sat/vb
  • T=0800 chunk: A B, feerate 50 sat/vb
  • T=1000 chunk: A B C, feerate 80 sat/vb
  • T=1500 chunks: [A D] feerate 100 sat/vb, [B] feerate 90 sat/vb, [C] feerate 85 sat/vb

That is, B C and D all CPFP A, but D does so at a much higher feerate than B or C.

In that case B and C have been in the mempool since 0800 and 1000 respectively, but should perhaps only be considered to have been in the mempool at 90sat/vb and 85sat/vb since T=1500.