Sha256: aaf0e10ae19fbc05c97c63706cf94d9f365d64e3870b82b51bc8cc2230f50992
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Size: 1.68 KB
Versions: 26
Compression:
Stored size: 1.68 KB
Contents
#!/usr/bin/env ruby
# frozen_string_literal: true
require 'forwardable'
require 'colorator'
require 'liquid'
require 'benchmark/ips'
require 'memory_profiler'
# Set up (memory) profiler
class Profiler
def self.run
yield new(ARGV[0] || 10_000)
end
def initialize(count)
@count = count.to_i
end
def report(label, color, &block)
prof_report = MemoryProfiler.report { @count.to_i.times(&block) }
allocated_memory = prof_report.scale_bytes(prof_report.total_allocated_memsize)
allocated_objects = prof_report.total_allocated
retained_memory = prof_report.scale_bytes(prof_report.total_retained_memsize)
retained_objects = prof_report.total_retained
puts <<~MSG.send(color)
With #{label} calls
Total allocated: #{allocated_memory} (#{allocated_objects} objects)
Total retained: #{retained_memory} (#{retained_objects} objects)
MSG
end
end
# Set up stage
class Drop < Liquid::Drop
def initialize(obj)
@obj = obj
end
end
class ForwardDrop < Drop
extend Forwardable
def_delegators :@obj, :name
end
class StaticDrop < Drop
def name
@obj.name
end
end
class Document
def name
'lipsum'
end
end
# Set up actors
document = Document.new
alpha = ForwardDrop.new(document)
beta = StaticDrop.new(document)
count = ARGV[0] || 10_000
# Run profilers
puts "\nMemory profiles for #{count} calls to invoke drop key:"
Profiler.run do |x|
x.report('forwarded', :cyan) { alpha['name'] }
x.report('static', :green) { beta['name'] }
end
# Benchmark
puts "\nBenchmarking the two scenarios..."
Benchmark.ips do |x|
x.report('forwarded'.cyan) { alpha['name'] }
x.report('static'.green) { beta['name'] }
x.compare!
end
Version data entries
26 entries across 26 versions & 1 rubygems