File: bench_memptr_fill.rb

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require_relative 'bench_helper'

module BenchMemptrFill
  iter = ITER

  puts "Benchmark MemoryPointer#put_array_of_float performance, #{iter}x"

  5.times {
    ptr = FFI::MemoryPointer.new(:float, 8, false)
    puts Benchmark.measure {
      iter.times {
        ptr.put_array_of_float(0, [ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 ])
      }
    }
  }


  puts "Benchmark MemoryPointer.new(:float, 8, false)).put_array_of_float performance, #{iter}x"
  5.times {
    puts Benchmark.measure {
      iter.times {
        ptr = FFI::MemoryPointer.new(:float, 8, false)
        ptr.put_array_of_float(0, [ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 ])
      }
    }
  }

  module LibTest
    extend FFI::Library
    ffi_lib LIBTEST_PATH

    attach_function :bench, :bench_P_v, [ :buffer_in ], :void
  end

  puts "Benchmark MemoryPointer alloc+fill+call performance, #{iter}x"
  5.times {
    puts Benchmark.measure {
      iter.times {
        ptr = FFI::MemoryPointer.new(:float, 8, false)
        ptr.put_array_of_float(0, [ 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 ])
        LibTest.bench(ptr)
      }
    }
  }
end