File: bench_buffer_fill.rb

package info (click to toggle)
ruby-ffi 1.0.11debian-5
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 1,488 kB
  • sloc: ansic: 6,608; ruby: 6,167; xml: 151; sh: 74; makefile: 12
file content (45 lines) | stat: -rw-r--r-- 1,056 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
require File.expand_path(File.join(File.dirname(__FILE__), "bench_helper"))

require 'benchmark'
require 'ffi'
iter = ITER

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

5.times {
  ptr = FFI::Buffer.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 Buffer.new(:float, 8, false)).put_array_of_float performance, #{iter}x"
5.times {
  puts Benchmark.measure {
    iter.times { 
      ptr = FFI::Buffer.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 Buffer alloc+fill+call performance, #{iter}x"
5.times {
  puts Benchmark.measure {
    iter.times {
      ptr = FFI::Buffer.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)
    }
  }
}