Ryuta Kamizono 0adcec4954 PERF: Avoid extra delegation to LazyAttributeHash ... The extra delegation to `LazyAttributeHash` has non-negligible overhead. Avoiding that delegation makes attributes access about 45% faster for readonly (non-mutation) usage. https://gist.github.com/kamipo/4002c96a02859d8fe6503e26d7be4ad8 Before: ``` IPS Warming up -------------------------------------- attribute access 1.000 i/100ms Calculating ------------------------------------- attribute access 3.444 (± 0.0%) i/s - 18.000 in 5.259030s MEMORY Calculating ------------------------------------- attribute access 38.902M memsize ( 0.000 retained) 350.044k objects ( 0.000 retained) 15.000 strings ( 0.000 retained) ``` After (with `immutable_strings_by_default = true`): ``` IPS Warming up -------------------------------------- attribute access 1.000 i/100ms Calculating ------------------------------------- attribute access 5.066 (±19.7%) i/s - 25.000 in 5.024650s MEMORY Calculating ------------------------------------- attribute access 27.382M memsize ( 0.000 retained) 160.044k objects ( 0.000 retained) 15.000 strings ( 0.000 retained) ```		2020-06-15 09:26:24 +09:00
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active_model	PERF: Avoid extra delegation to LazyAttributeHash	2020-06-15 09:26:24 +09:00
active_model.rb	Bump license years from 2019 to 2020 [ci skip]	2020-01-01 15:10:31 +05:30