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| author | Todd Gamblin <tgamblin@llnl.gov> | 2016-12-05 10:03:58 -0800 |
|---|---|---|
| committer | becker33 <becker33@llnl.gov> | 2016-12-05 10:03:58 -0800 |
| commit | 41b8f31bcd299d4ea7dd40138f725f77576278a3 (patch) | |
| tree | d3f50e9e465860c651ee9856aa3cff53628dc077 /LICENSE | |
| parent | 161d6205b2dcc61296913701f1b088157fcea118 (diff) | |
| download | spack-41b8f31bcd299d4ea7dd40138f725f77576278a3.tar.gz spack-41b8f31bcd299d4ea7dd40138f725f77576278a3.tar.bz2 spack-41b8f31bcd299d4ea7dd40138f725f77576278a3.tar.xz spack-41b8f31bcd299d4ea7dd40138f725f77576278a3.zip | |
Use JSON for the database instead of YAML. (#2189)
* Use JSON for the database instead of YAML.
- JSON is much faster than YAML *and* can preserve ordered keys.
- 170x+ faster than Python YAML when using unordered dicts
- 55x faster than Python YAML (both using OrderedDicts)
- 8x faster than C YAML (with OrderedDicts)
- JSON is built into Python, unlike C YAML, so doesn't add a dependency.
- Don't need human readability for the package database.
- JSON requires no major changes to the code -- same object model as YAML.
- add to_json, from_json methods to spec.
* Add tests to ensure JSON and YAML don't need to be ordered in DB.
* Write index.json first time it's not found instead of requiring reindex.
* flake8 bug.
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