Use a single FacterDB.get_facts call #158
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The major cost is FacterDB.get_facts. Instead of calling it once for every OS version this instead calls it once with a complex filter. It then uses JGrep to simulate another smaller DB and futher query that.
In my non-scientific test this reduces the load time of puppet-example from 3.5 to 2.5 seconds.
This is VERY hacky and duplicates logic from FacterDB which it really should not do. There is also overhead of serializing to JSON, loading that back and doing symbol conversion. It may be possible to use
JGrep.filter_json
, but that probably fails on the symbol keys. If FacterDB.get_facts could return string keys all of that would be redundant.