436a5783c7
7e698732836121912f179b7c743a72dd6fdffa72 sync: remove DEBUG_LOCKCONTENTION preprocessor directives (Jon Atack) 9b08006bc502e67956d6ab518388fad6397cac8d log, sync: improve lock contention logging and add time duration (Jon Atack) 3f4c6b87f1098436693c4990f2082515ec0ece26 log, timer: add timing macro in usec LOG_TIME_MICROS_WITH_CATEGORY (Jon Atack) b7a17444e0746c562ae97b26eba431577947b06a log, sync: add LOCK logging category, apply it to lock contention (Jon Atack) Pull request description: To enable lock contention logging, `DEBUG_LOCKCONTENTION` has to be defined at compilation. Once built, the logging is not limited to a category and is high frequency, verbose and in all-caps. With these factors combined, it seems likely to be rarely used. This patch: - adds a `lock` logging category - adds a timing macro in microseconds, `LOG_TIME_MICROS_WITH_CATEGORY` - updates `BCLog::LogMsg()` to omit irrelevant decimals for microseconds and skip unneeded code and math - improves the lock contention logging, drops the all-caps, and displays the duration in microseconds - removes the conditional compilation directives - allows lock contentions to be logged on startup with `-debug=lock` or at run time with `bitcoin-cli logging '["lock"]'` ``` $ bitcoind -signet -debug=lock 2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1920 started 2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1920 completed (4μs) 2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1302 started 2021-09-01T12:40:01Z LockContention: cs_vNodes, net.cpp:1302 completed (4μs) 2021-09-01T12:40:02Z LockContention: cs_vNodes, net.cpp:2242 started 2021-09-01T12:40:02Z LockContention: cs_vNodes, net.cpp:2242 completed (20μs) 2021-09-01T12:43:04Z LockContention: ::cs_main, validation.cpp:4980 started 2021-09-01T12:43:04Z LockContention: ::cs_main, validation.cpp:4980 completed (3μs) $ bitcoin-cli -signet logging "lock": true, $ bitcoin-cli -signet logging [] '["lock"]' "lock": false, $ bitcoin-cli -signet logging '["lock"]' "lock": true, ``` I've tested this with Clang 13 and GCC 10.2.1, on Debian, with and without `--enable-debug`. ACKs for top commit: hebasto: re-ACK 7e698732836121912f179b7c743a72dd6fdffa72, added a contention duration to the log message since my [previous](https://github.com/bitcoin/bitcoin/pull/22736#pullrequestreview-743764606) review. theStack: re-ACK 7e698732836121912f179b7c743a72dd6fdffa72 🔏 ⏲️ Tree-SHA512: c4b5eb88d3a2c051acaa842b3055ce30efde1f114f61da6e55fcaa27476c1c33a60bc419f7f5ccda532e1bdbe70815222ec2b2b6d9226f29c8e94e598aacfee7 |
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.github | ||
.tx | ||
build-aux/m4 | ||
ci | ||
contrib | ||
depends | ||
doc | ||
share | ||
src | ||
test | ||
.cirrus.yml | ||
.dockerignore | ||
.editorconfig | ||
.fuzzbuzz.yml | ||
.gitattributes | ||
.gitignore | ||
.gitlab-ci.yml | ||
.python-version | ||
.style.yapf | ||
autogen.sh | ||
CMakeLists.txt | ||
configure.ac | ||
CONTRIBUTING.md | ||
COPYING | ||
INSTALL.md | ||
libdashconsensus.pc.in | ||
Makefile.am | ||
README.md | ||
SECURITY.md |
Dash Core staging tree
CI | master | develop |
---|---|---|
Gitlab |
For an immediately usable, binary version of the Dash Core software, see https://www.dash.org/downloads/.
Further information about Dash Core is available in the doc folder.
What is Dash?
Dash is an experimental digital currency that enables instant, private payments to anyone, anywhere in the world. Dash uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. Dash Core is the name of the open source software which enables the use of this currency.
For more information read the original Dash whitepaper.
License
Dash Core is released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT.
Development Process
The master
branch is meant to be stable. Development is normally done in separate branches.
Tags are created to indicate new official,
stable release versions of Dash Core.
The develop
branch is regularly built (see doc/build-*.md for instructions) and tested, but is not guaranteed to be
completely stable.
The contribution workflow is described in CONTRIBUTING.md and useful hints for developers can be found in doc/developer-notes.md.
Testing
Testing and code review is the bottleneck for development; we get more pull requests than we can review and test on short notice. Please be patient and help out by testing other people's pull requests, and remember this is a security-critical project where any mistake might cost people lots of money.
Automated Testing
Developers are strongly encouraged to write unit tests for new code, and to
submit new unit tests for old code. Unit tests can be compiled and run
(assuming they weren't disabled in configure) with: make check
. Further details on running
and extending unit tests can be found in /src/test/README.md.
There are also regression and integration tests, written
in Python.
These tests can be run (if the test dependencies are installed) with: test/functional/test_runner.py
The CI (Continuous Integration) systems make sure that every pull request is built for Windows, Linux, and macOS, and that unit/sanity tests are run automatically.
Manual Quality Assurance (QA) Testing
Changes should be tested by somebody other than the developer who wrote the code. This is especially important for large or high-risk changes. It is useful to add a test plan to the pull request description if testing the changes is not straightforward.
Translations
Changes to translations as well as new translations can be submitted to Dash Core's Transifex page.
Translations are periodically pulled from Transifex and merged into the git repository. See the translation process for details on how this works.
Important: We do not accept translation changes as GitHub pull requests because the next pull from Transifex would automatically overwrite them again.