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require 'benchmark'
require 'ffi'
require 'etc'
iter = 1000000
module Posix
extend FFI::Library
attach_function :getlogin, [], :string
end
if Posix.getlogin != Etc.getlogin
raise ArgumentError, "FFI getlogin returned incorrect value"
end
puts "Benchmark FFI getlogin(2) performance, #{iter}x"
10.times {
puts Benchmark.measure {
iter.times { Posix.getlogin }
}
}
puts "Benchmark Etc.getlogin performance, #{iter}x"
10.times {
puts Benchmark.measure {
iter.times { Etc.getlogin }
}
}
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