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path: root/contrib/devtools/copyright_header.py
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2020-06-13Replace current benchmarking framework with nanobenchMartin Ankerl
This replaces the current benchmarking framework with nanobench [1], an MIT licensed single-header benchmarking library, of which I am the autor. This has in my opinion several advantages, especially on Linux: * fast: Running all benchmarks takes ~6 seconds instead of 4m13s on an Intel i7-8700 CPU @ 3.20GHz. * accurate: I ran e.g. the benchmark for SipHash_32b 10 times and calculate standard deviation / mean = coefficient of variation: * 0.57% CV for old benchmarking framework * 0.20% CV for nanobench So the benchmark results with nanobench seem to vary less than with the old framework. * It automatically determines runtime based on clock precision, no need to specify number of evaluations. * measure instructions, cycles, branches, instructions per cycle, branch misses (only Linux, when performance counters are available) * output in markdown table format. * Warn about unstable environment (frequency scaling, turbo, ...) * For better profiling, it is possible to set the environment variable NANOBENCH_ENDLESS to force endless running of a particular benchmark without the need to recompile. This makes it to e.g. run "perf top" and look at hotspots. Here is an example copy & pasted from the terminal output: | ns/byte | byte/s | err% | ins/byte | cyc/byte | IPC | bra/byte | miss% | total | benchmark |--------------------:|--------------------:|--------:|----------------:|----------------:|-------:|---------------:|--------:|----------:|:---------- | 2.52 | 396,529,415.94 | 0.6% | 25.42 | 8.02 | 3.169 | 0.06 | 0.0% | 0.03 | `bench/crypto_hash.cpp RIPEMD160` | 1.87 | 535,161,444.83 | 0.3% | 21.36 | 5.95 | 3.589 | 0.06 | 0.0% | 0.02 | `bench/crypto_hash.cpp SHA1` | 3.22 | 310,344,174.79 | 1.1% | 36.80 | 10.22 | 3.601 | 0.09 | 0.0% | 0.04 | `bench/crypto_hash.cpp SHA256` | 2.01 | 496,375,796.23 | 0.0% | 18.72 | 6.43 | 2.911 | 0.01 | 1.0% | 0.00 | `bench/crypto_hash.cpp SHA256D64_1024` | 7.23 | 138,263,519.35 | 0.1% | 82.66 | 23.11 | 3.577 | 1.63 | 0.1% | 0.00 | `bench/crypto_hash.cpp SHA256_32b` | 3.04 | 328,780,166.40 | 0.3% | 35.82 | 9.69 | 3.696 | 0.03 | 0.0% | 0.03 | `bench/crypto_hash.cpp SHA512` [1] https://github.com/martinus/nanobench * Adds support for asymptotes This adds support to calculate asymptotic complexity of a benchmark. This is similar to #17375, but currently only one asymptote is supported, and I have added support in the benchmark `ComplexMemPool` as an example. Usage is e.g. like this: ``` ./bench_bitcoin -filter=ComplexMemPool -asymptote=25,50,100,200,400,600,800 ``` This runs the benchmark `ComplexMemPool` several times but with different complexityN settings. The benchmark can extract that number and use it accordingly. Here, it's used for `childTxs`. The output is this: | complexityN | ns/op | op/s | err% | ins/op | cyc/op | IPC | total | benchmark |------------:|--------------------:|--------------------:|--------:|----------------:|----------------:|-------:|----------:|:---------- | 25 | 1,064,241.00 | 939.64 | 1.4% | 3,960,279.00 | 2,829,708.00 | 1.400 | 0.01 | `ComplexMemPool` | 50 | 1,579,530.00 | 633.10 | 1.0% | 6,231,810.00 | 4,412,674.00 | 1.412 | 0.02 | `ComplexMemPool` | 100 | 4,022,774.00 | 248.58 | 0.6% | 16,544,406.00 | 11,889,535.00 | 1.392 | 0.04 | `ComplexMemPool` | 200 | 15,390,986.00 | 64.97 | 0.2% | 63,904,254.00 | 47,731,705.00 | 1.339 | 0.17 | `ComplexMemPool` | 400 | 69,394,711.00 | 14.41 | 0.1% | 272,602,461.00 | 219,014,691.00 | 1.245 | 0.76 | `ComplexMemPool` | 600 | 168,977,165.00 | 5.92 | 0.1% | 639,108,082.00 | 535,316,887.00 | 1.194 | 1.86 | `ComplexMemPool` | 800 | 310,109,077.00 | 3.22 | 0.1% |1,149,134,246.00 | 984,620,812.00 | 1.167 | 3.41 | `ComplexMemPool` | coefficient | err% | complexity |--------------:|-------:|------------ | 4.78486e-07 | 4.5% | O(n^2) | 6.38557e-10 | 21.7% | O(n^3) | 3.42338e-05 | 38.0% | O(n log n) | 0.000313914 | 46.9% | O(n) | 0.0129823 | 114.4% | O(log n) | 0.0815055 | 133.8% | O(1) The best fitting curve is O(n^2), so the algorithm seems to scale quadratic with `childTxs` in the range 25 to 800.
2020-04-16scripted-diff: Bump copyright headersMarcoFalke
-BEGIN VERIFY SCRIPT- ./contrib/devtools/copyright_header.py update ./ -END VERIFY SCRIPT-
2020-01-28test: Add crc32c exception to various linters and generation scriptsWladimir J. van der Laan
2020-01-03script: Update EXLUDE list in copyright_header.pyHennadii Stepanov
2020-01-03script: Add empty line after C++ copyrightHennadii Stepanov
2020-01-03script: Add ability to insert copyright to *.shHennadii Stepanov
2019-10-04scripts: update copyright_header script to include additional filesgchuf
Includes .sh and .bash-completion files in the script as well
2019-09-03devtools: Accomodate block-style copyright blocksBen Woosley
Without this, `copyright_header.py report . verbose` reports: ------------------------------------------------------------------------------- 1 with unexpected copyright holder names ./build_msvc/libsecp256k1_config.h -------------------------------------------------------------------------------
2019-09-03test/contrib: Fix invalid escapes in regex stringsBen Woosley
Flagged by flake8 v3.6.0, as W605, plus a few others identified incidentally, e.g. 59ffecf66cf4d08c4b431e457b083878d66a3fd6. Note that r"\n" matches to "\n" under re.match/search.
2019-06-29Fix: "Bitcoin Core" -> "The Bitcoin Core"Hennadii Stepanov
2019-06-29Drop no-longer-relevant copyright holder nameHennadii Stepanov
2019-06-29Include Objective-C source filesHennadii Stepanov
The copyright_header.py script will process Objective-C source files (*.mm) as other ones.
2019-01-24Scripts and tools: Drop no-longer-relevant copyright holder namesBen Woosley
Now that leveldb, secp256k1, etc. are reliably excluded, these names will not show up in the searched files.
2019-01-24Scripts and tools: Fix devtools/copyright_header.py to always honor exclusionsBen Woosley
This script compared paths relative to the report directory to test for exclusion, meaning the directory exclusions did not work properly, as they were relative to the project root. Fix this by creating absolute paths through the combination of: 'git ls-files --full-name' and 'git rev-parse --show-toplevel'
2018-12-10Compare to None with is/is notDaniel Ingram
2018-11-23Fix detection of copyright holdersCornelius Schumacher
* There is a copyright notice in `src/crypto/sha256_sse4.cpp` in the middle of the file which contains a comma before the copyright holder name. Correctly detect this so it's added to the report. * Add missing copyright holders so that `copyright_header.py report` doesn't show any unexpected copyright holder names anymore. * Exclude files from git subtrees because they are maintained at the original source.
2018-07-27Update copyright headers to 2018DrahtBot
2018-06-12Explicitly specify encoding when opening text files in Python codepracticalswift
2018-05-11Enable W191 and W291 flake8 checks.John Bampton
Remove trailing whitespace from Python files. Convert tabs to spaces.
2018-04-16Minor Python cleanups to make flake8 pass with the new rules enabledpracticalswift
2018-01-03Merge #12075: [scripts] Add missing univalue file to copyright_header.pyMarcoFalke
415f86c6ae [scripts] Add missing univalue file to copyright_header.py (fanquake) Pull request description: This needs to be added so that PRs like #12062 don't modify the subtree. Tree-SHA512: 3642bdb0c8271ae700857a79fa5800b0c26c4b3f126d4406f224293817fb74d498fa1fc581d576ae747fbbb6952d4369fc4ab823ab48fd0946c1e8ccbe93cee6
2018-01-03Increment MIT Licence copyright header year on files modified in 2017Akira Takizawa
2018-01-02[scripts] Add missing univalue file to copyright_header.pyfanquake
2017-03-20Rename rpc-tests directory to functionalJohn Newbery
2017-03-20Rename qa directory to testJohn Newbery
2016-09-10[devtools] script support for managing source file copyright headersisle2983
Three subcommands to this script: 1) ./copyright_header.py report Examines git-tracked files with extensions that match: INCLUDE = ['*.h', '*.cpp', '*.cc', '*.c', '*.py'] Helps to: -> Identify source files without copyright -> Identify source files added with something other than "The Bitcoin Core developers" holder so we can be sure it is appropriate -> Identify unintentional typos in the copyright line 2) ./copyright_header.py update Replaces fix-copyright-headers.py. It does file editing in native python rather than subprocessing out to perl as was the case with fix-copyright-headers.py. It also shares code with the 'report' functions. 3) ./copyright_header.py insert Inserts a copyright header into a source file with the proper format and dates.
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