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
|
require 'benchmark'
TIMES = 2_000_000
def bench_array(bm)
arr1 = ['a', 'b', 'c', 'd', 'e']
bm.report("grep(/./) { |e| e } (5 element string array)") do
TIMES.times { arr1.grep(/./) { |e| e } }
end
bm.report("grep(/0/) (5 element string array)") do
TIMES.times { arr1.grep(/0/) }
end
arr2 = (0...30).to_a.map { |e| e.to_s }
bm.report("grep(/./) { |e| e } (30 element string array)") do
TIMES.times { arr2.grep(/./) { |e| e } }
end
bm.report("grep(/0/) (30 element string array)") do
TIMES.times { arr2.grep(/0/) }
end
end
if $0 == __FILE__
if ARGV[0]
ARGV[0].to_i.times {
Benchmark.bm(30) { |bm| bench_array(bm) }
}
else
Benchmark.bmbm { |bm| bench_array(bm) }
end
end
|
