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ab5af9ca72test: Add test for coinselection tracepoints (Andrew Chow)ca02b68e8adoc: document coin selection tracepoints (Andrew Chow)8e3f39e4fawallet: Add some tracepoints for coin selection (Andrew Chow)15b58383d0wallet: compute waste for SelectionResults of preset inputs (Andrew Chow)912f1ed181wallet: track which coin selection algorithm produced a SelectionResult (Andrew Chow) Pull request description: Tracepoints can be useful for coin selection as they would allow us to observe what is being selected, selection parameters, and calculation results. So this PR adds 4 new tracepoints: 1. After `SelectCoins` returns in order to observe the `SelectionResult` 2. After the first `CreateTransactionInternal` to observe the created transaction 3. Prior to the second `CreateTransactionInternal` to notify that the optimistic avoid partial spends selection is occurring 4. After the second `CreateTransactionInternal` to observe the created transaction and inform which solution is being used. This PR also adds an algorithm enum to `SelectionResult` so that the first tracepoint will be able to report which algorithm was used to produce that result. The primary use case for these tracepoints is in running coin selection simulations. The script I use to run these simulations use these tracepoints in order to gather data on the algorithm used and the calculated waste. ACKs for top commit: jb55: crACKab5af9ca72josibake: crACKab5af9ca720xB10C: ACKab5af9ca72. Code reviewed, ran the `interface_usdt_coinselection.py` test, and tested with the above bpftrace script (updated `%d` -> `%ld` where necessary, ty achow101). Tree-SHA512: a4bf7a910cdf464622f2f3b5d44c15b891f24852df6e7f8c5b177fe3d8aaa4a1164593a24c3960eb22b16544fa7140e5c745345367b9e291b78395084c0ac8ff
Bitcoin Core
Setup
Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires a few hundred gigabytes of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.
To download Bitcoin Core, visit bitcoincore.org.
Running
The following are some helpful notes on how to run Bitcoin Core on your native platform.
Unix
Unpack the files into a directory and run:
bin/bitcoin-qt(GUI) orbin/bitcoind(headless)
Windows
Unpack the files into a directory, and then run bitcoin-qt.exe.
macOS
Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.
Need Help?
- See the documentation at the Bitcoin Wiki for help and more information.
- Ask for help on Bitcoin StackExchange.
- Ask for help on #bitcoin on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
- Ask for help on the BitcoinTalk forums, in the Technical Support board.
Building
The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.
- Dependencies
- macOS Build Notes
- Unix Build Notes
- Windows Build Notes
- FreeBSD Build Notes
- OpenBSD Build Notes
- NetBSD Build Notes
- Android Build Notes
Development
The Bitcoin repo's root README contains relevant information on the development process and automated testing.
- Developer Notes
- Productivity Notes
- Release Notes
- Release Process
- Source Code Documentation (External Link)
- Translation Process
- Translation Strings Policy
- JSON-RPC Interface
- Unauthenticated REST Interface
- Shared Libraries
- BIPS
- Dnsseed Policy
- Benchmarking
Resources
- Discuss on the BitcoinTalk forums, in the Development & Technical Discussion board.
- Discuss project-specific development on #bitcoin-core-dev on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
Miscellaneous
- Assets Attribution
- Assumeutxo design
- bitcoin.conf Configuration File
- CJDNS Support
- Files
- Fuzz-testing
- I2P Support
- Init Scripts (systemd/upstart/openrc)
- Managing Wallets
- Multisig Tutorial
- P2P bad ports definition and list
- PSBT support
- Reduce Memory
- Reduce Traffic
- Tor Support
- Transaction Relay Policy
- ZMQ
License
Distributed under the MIT software license.