a2031de849
I occasionally do 'build/man/man systemd.directives' when working on man pages, and it's annoying slow. By paralellizing the parsing of xml, we can make it a bit faster. This is still rather innefficient. Only the parsing part is serialized, xml is still produced serially at the end, which is hard to avoid. $ ninja -C build man/systemd.directives.xml before: 8.20s user 0.21s system 99% cpu 8.460 total 8.33s user 0.18s system 98% cpu 8.619 total 8.72s user 0.19s system 98% cpu 9.019 total after: 13.99s user 0.73s system 345% cpu 4.262 total 14.15s user 0.35s system 348% cpu 4.161 total 14.33s user 0.35s system 339% cpu 4.321 total I.e. it uses almost twice as much cpu, but cuts the wallclock time down (on a 2-core/4-thread cpu) to about half too, which is an overall win if you're just trying to render the man page. The change from list and .append() to set and .add() is something that could have been done before too, but it's noticable now. It cuts down on the serialization/deserialization time (about .2s). |
||
|---|---|---|
| .github | ||
| .lgtm/cpp-queries | ||
| .mkosi | ||
| .semaphore | ||
| catalog | ||
| coccinelle | ||
| docs | ||
| factory/etc | ||
| hwdb.d | ||
| man | ||
| mkosi.default.d | ||
| modprobe.d | ||
| network | ||
| po | ||
| presets | ||
| rules.d | ||
| shell-completion | ||
| src | ||
| sysctl.d | ||
| sysusers.d | ||
| test | ||
| tmpfiles.d | ||
| tools | ||
| units | ||
| xorg | ||
| .clang-format | ||
| .ctags | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .lgtm.yml | ||
| .mailmap | ||
| .packit.yml | ||
| .vimrc | ||
| .ycm_extra_conf.py | ||
| configure | ||
| LICENSE.GPL2 | ||
| LICENSE.LGPL2.1 | ||
| Makefile | ||
| meson.build | ||
| meson_options.txt | ||
| mkosi.build | ||
| NEWS | ||
| README | ||
| README.md | ||
| TODO | ||
System and Service Manager
Details
Most documentation is available on systemd's web site.
Assorted, older, general information about systemd can be found in the systemd Wiki.
Information about build requirements is provided in the README file.
Consult our NEWS file for information about what's new in the most recent systemd versions.
Please see the Hacking guide for information on how to hack on systemd and test your modifications.
Please see our Contribution Guidelines for more information about filing GitHub Issues and posting GitHub Pull Requests.
When preparing patches for systemd, please follow our Coding Style Guidelines.
If you are looking for support, please contact our mailing list or join our IRC channel.
Stable branches with backported patches are available in the stable repo.