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slow custom facts #1273

Description

@otheus

The package_provider.rb facts can be optimized simply by moving the require lines into the setcode block. This reduces stand-alone puppet runs by 0.5s on modern systems. (On puppet-agent runs, no such savings are observed, probably because the libraries are already required by the puppet agent itself. Apparently, the facter command evaluates the outer and inner blocks in different contexts.

Interestingly, moving the corresponding lines in service_provider.rb has no measurable performance benefit.

Current version

# bench 3 "facter -p >/dev/null"
Run 1
Run 2
Run 3
1665392723.165300291
1665392730.070952629
2.3018

With recommended change

# bench 3 "facter -p >/dev/null"
Run 1
Run 2
Run 3
1665392652.861524963
1665392661.744424272
2.9609

Activity

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