Quoting Dominique Dumont (2021-11-21 18:32:31) > On Saturday, 20 November 2021 11:15:59 CET Jonas Smedegaard wrote: > > I would appreciate some numbers about actual slowdown. > > Fair enough. > > Here are some measurements where the cell content is the "real" time given by > time command. > > This table is to be viewed with a monospace font. > > licensecheck command is: > ┌──── > │ licensecheck --lines 0 --encoding utf8 --copyright --machine > --shortname-scheme=debian,spdx --recursive . > └──── > > This is also the command used internally by cme. > > ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ > package plain cme with licensecheck licensecheck > cme lines=0 with lines=0 > ─────────────────────────────────────────────────────────── > pan 0m2.694s 0m6.553s 0m4.571s 0m9.303s > moarvm 0m3.768s 0m41.772s 0m3.900s 0m40.274s > nqp 0m3.057s 0m3.635s 0m3.682s 0m9.955s > rakudo 0m3.448s 0m9.784s 0m11.358s 0m17.517s > systemd 4m30.489s 4m59.546s 4m31.644s 5m2.661s > ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ > > > The result is surprising as using --lines 0 can be lead to similar time or 10 > times longer...
Thanks. Takes longer indeed. Only systemd is relatively large, though, with only little slowdown. Only moarvm has extreme slowdown, which is vastly reduced by skipping a few large test files codifying random numbers, by adding this option: --ignore '3rdparty/ryu/third_party/double-conversion/test/cctest/gay-.*cc' Also, systemd seems to contain tidy SPDX annotations, which is detected even scanning only top 20 lines of code. A project I know is both relatively large and more messy is emscripten. On my system, scanning emscripten takes 1m21,149s using this command: licensecheck --check '.*' --recursive --copyright --deb-machine --lines 0 --merge-licenses --ignore '.*\.(png|mdl|wav|ogg|mp3|dds)$' -- * Dropping "--lines 0" it takes only 0m35,730s But comparing the output shows quite a few differences - e.g. the FreeType Project is not detected as copyright holder. I find it relevant to take loss of accuracy into account. - Jonas -- * Jonas Smedegaard - idealist & Internet-arkitekt * Tlf.: +45 40843136 Website: http://dr.jones.dk/ [x] quote me freely [ ] ask before reusing [ ] keep private
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