71 lines
1.9 KiB
Crystal
71 lines
1.9 KiB
Crystal
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require "benchmark"
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require "./utilities.cr"
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require "../src/lru.cr"
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def add(lru : LRU(Int32) | EfficientLRU(Int32), nb : UInt32)
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i = 0
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while i < nb
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lru << i
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i += 1
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end
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end
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def report_add(lru : LRU(Int32) | EfficientLRU(Int32), nb : UInt32, fname : String)
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File.open("#{Context.report_dir}/#{fname}.raw", "w") do |file|
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i = 0
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while i < nb
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elapsed_time = perform_something { lru << i }
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i += 1
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file.puts "#{i} #{elapsed_time.total_nanoseconds}"
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end
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end
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end
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class Context
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class_property nb_values : UInt32 = 100_000
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class_property lru_size : UInt32 = 10_000
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class_property report_dir = "results"
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end
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if nb_values = ENV["NBVAL"]?
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Context.nb_values = nb_values.to_u32
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end
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if lru_size = ENV["LRUSIZE"]?
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Context.lru_size = lru_size.to_u32
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end
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if ARGV.size > 0
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puts "Usage: benchmark-lru"
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puts ""
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puts "envvar: REPORT_DIR=<directory> where to put the results"
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puts "envvar: REPORT_EACH_ADD=<any> to report the duration of each addition of a value in the structure"
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puts "envvar: NBVAL=<nb> (default: 100_000) nb of values to add to the structure"
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puts "envvar: LRUSIZE=<nb> (default: 10_000) max number of values in the structure"
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exit 0
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end
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ENV["REPORT_DIR"]?.try { |report_dir| Context.report_dir = report_dir }
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Dir.mkdir_p Context.report_dir
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if ENV["REPORT_EACH_ADD"]?
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LRU(Int32).new(Context.lru_size).tap do |lru|
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report_add lru, Context.nb_values, "lru_#{Context.lru_size}_#{Context.nb_values}"
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end
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EfficientLRU(Int32).new(Context.lru_size).tap do |lru|
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report_add lru, Context.nb_values, "efficientlru_#{Context.lru_size}_#{Context.nb_values}"
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end
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else
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Benchmark.ips do |x|
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x.report("adding #{Context.nb_values} values, LRU limited to #{Context.lru_size}") do
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lru = LRU(Int32).new Context.lru_size
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add lru, Context.nb_values
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end
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x.report("adding #{Context.nb_values} values, EfficientLRU limited to #{Context.lru_size}") do
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lru = EfficientLRU(Int32).new Context.lru_size
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add lru, Context.nb_values
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end
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end
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end
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