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This commit only changes a benchmark test file used to measure wallet coin-selection performance. It replaces an old, unrealistic benchmark with a more diverse and deterministic one. There is no change to production wallet code, consensus …
0429c503by Murch+82−331 fileThis is a minor code cleanup in a benchmark test file. It removes an unused wallet parameter from a helper function used only for performance testing of coin selection. The change does not affect live wallet behavior, network consensus, or…
ec1eefdaby Murch+4−41 fileThis is a minor code cleanup in a benchmark file. It changes a function parameter type from signed to unsigned to match how it is actually used, and removes a duplicated comment. It does not affect the live Bitcoin wallet or network code a…
e6c4ffb9by Murch+3−41 fileThis commit is a routine optimization to Bitcoin Core's coin-selection algorithm. It makes the wallet skip more redundant combinations when choosing which coins to spend, slightly reducing the number of attempts the algorithm tries. There …
7249b376by Murch+39−162 filesThis commit is a pure performance optimization for Bitcoin Core's coin selection algorithm. It avoids re-evaluating equivalent combinations of coins when choosing which inputs to include in a transaction. There is no security vulnerability…
52042918by Murch+26−52 filesThis commit is a performance optimization to Bitcoin Core's coin-selection algorithm. It pre-computes a running total ('lookahead') of remaining coin values so the Branch-and-Bound search can skip dead-end branches faster. The change is pu…
ba1807b9by Murch+33−183 filesThis commit is a performance optimization for Bitcoin Core's coin selection algorithm. It teaches the Branch-and-Bound (BnB) coin picker to skip exploring input combinations that are guaranteed to be worse at high transaction fees. It does…
fa226ab9by Murch+11−22 filesThis commit changes how Bitcoin Core's coin-selection algorithm tracks whether it finished its search. Previously, the code created the result object after the loop, so it could not record whether the Branch-and-Bound (BnB) search hit its …
7ecea1dcby Murch+3−11 fileThis commit rewrites an internal Bitcoin wallet algorithm called Branch-and-Bound (BnB) coin selection so it works more like another existing algorithm, CoinGrinder. The change removes two documented speed optimizations (lookahead pruning …
3ca0f361by Murch+104−973 filesThis commit only adds an internal counter that records how many candidate combinations the coin-selection algorithm examined before picking inputs for a Bitcoin transaction. It does not change how coins are actually selected, nor does it a…
2e737398by Murch+25−143 filesThis is a small improvement to how Bitcoin Core's wallet picks which coins to spend. When two coins are equally valuable for making a payment, the code now prefers the lighter-weight one, which saves on transaction fees. It is not a securi…
eff9e798by Murch+8−12 filesThis commit only adds and reorganizes automated tests for the wallet's coin-selection algorithm. It does not change any production code that handles Bitcoin transactions, keys, networking, or consensus rules. There is no security vulnerabi…
858a0a9cby Murch+8−732 filesThis commit only adds new test cases for an existing coin-selection algorithm called SRD (Single Random Draw). It does not change any production wallet code, network rules, or consensus behavior. The change is purely in the test suite and …
fe9f53bfby Murch+18−01 fileThis commit only changes test code for Bitcoin Core's coin selection logic. It moves and expands tests that check what happens when a wallet doesn't have enough funds to make a transaction. No production wallet code is changed, so this can…
2840f041by Murch+25−182 filesThis commit only changes test code. It updates the list of transaction fee rates used in wallet coin-selection unit tests to reflect a recent lowering of Bitcoin Core's default minimum fee rate and to cover more edge cases. No production c…
64ab9746by Murch+16−31 fileThis commit only changes Bitcoin Core's internal coin-selection unit tests. It refactors how test parameters are initialized so that the fee rate can be passed in directly, and it makes sure one group of failure tests uses the same paramet…
65900f8dby Murch+28−301 fileThis commit adds a new automated fuzz test for Bitcoin Core's coin selection algorithm. It does not change any production wallet code, network behavior, or consensus rules. The test brute-forces small coin-selection problems and checks tha…
54d03930by Murch+126−01 file