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# frozen_string_literal: true
require 'benchmark/ips'
require 'json'
# Add benchmarking runner from ruby-bench-suite
# https://github.com/ruby-bench/ruby-bench-suite/blob/master/rails/benchmarks/support/benchmark_rails.rb
module Benchmark
module ActiveModelSerializers
module TestMethods
def request(method, path)
response = Rack::MockRequest.new(BenchmarkApp).send(method, path)
if response.status.in?([404, 500])
fail "omg, #{method}, #{path}, '#{response.status}', '#{response.body}'"
end
response
end
end
# extend Benchmark with an `ams` method
def ams(label = nil, time:, disable_gc: true, warmup: 3, &block)
fail ArgumentError.new, 'block should be passed' unless block_given?
if disable_gc
GC.disable
else
GC.enable
end
report = Benchmark.ips(time, warmup, true) do |x|
x.report(label) { yield }
end
entry = report.entries.first
output = {
label: label,
version: ::ActiveModel::Serializer::VERSION.to_s,
rails_version: ::Rails.version.to_s,
iterations_per_second: entry.ips,
iterations_per_second_standard_deviation: entry.error_percentage,
total_allocated_objects_per_iteration: count_total_allocated_objects(&block)
}.to_json
puts output
output
end
def count_total_allocated_objects
if block_given?
key =
if RUBY_VERSION < '2.2'
:total_allocated_object
else
:total_allocated_objects
end
before = GC.stat[key]
yield
after = GC.stat[key]
after - before
else
-1
end
end
end
extend Benchmark::ActiveModelSerializers
end
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