On 17 March 2014 14:13, Andy Jeffries <a...@andyjeffries.co.uk> wrote:
> According to a quick benchmark on my machine (MacBook Air 2013, Ruby
> 2.1.0p0), using double quotes is about 2% faster:
Or, possibly, slower.
>
> require 'benchmark'
>
> n = 10_000_000
> Benchmark.bm do |x|
> x.report { n.times do ; a = "1"; end }
> x.report { n.times do ; a = '1'; end }
> end
>
> user system total real
> 1.020000 0.000000 1.020000 ( 1.015903)
> 0.990000 0.000000 0.990000 ( 0.992175)
Did you try swapping the two lines round and checking that the result
is consistent?
Colin
>
> However, as you can see it takes about 1 second to do 10 million iterations,
> so in reality, using a " instead of a ' adds on about 2 nanoseconds on a 99
> nanosecond operation. There are much bigger inefficiencies in all of our
> code than worrying about saving the odd 2ns here and there...
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