yui-knk 0c34773bf5 Use original Array#sum to speed up calculating ... Use original `Array#sum` when calculating Numeric sum. This commit is related #24804 issue. Issue #24804 reports `Array#sum` becomes much slower when ActiveSupport is included. This commit tries to use original method as far as possible. ```shell $ cat array_sum.rb class Array alias core_sum sum end require 'benchmark/ips' require 'active_support/core_ext/enumerable' ary = [1.0] * 1_000_000 Benchmark.ips do |x| x.report("core sum") { ary.core_sum } x.report("AS's sum") { ary.sum } x.compare! end $ bundle exec ruby -v -I lib array_sum.rb ruby 2.4.0dev (2016-05-01 master 54867) [x86_64-darwin14] Calculating ------------------------------------- core sum 4.000 i/100ms AS's sum 5.000 i/100ms ------------------------------------------------- core sum 50.492 (± 7.9%) i/s - 252.000 AS's sum 50.116 (± 6.0%) i/s - 250.000 Comparison: core sum: 50.5 i/s AS's sum: 50.1 i/s - 1.01x slower ``` Signed-off-by: Jeremy Daer <jeremydaer@gmail.com>		2016-05-07 21:57:00 -07:00
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active_support	Use original Array#sum to speed up calculating	2016-05-07 21:57:00 -07:00
active_support.rb	Add compatibility for Ruby 2.4 to_time changes	2016-04-23 15:03:50 +01:00