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require_relative 'bench_helper'
module BenchTime
module Posix
extend FFI::Library
ffi_lib FFI::Library::LIBC
if FFI::Library::LIBC =~ /ucrtbase/
attach_function :time, :_time64, [ :buffer_out ], :uint64, ignore_error: true
else
attach_function :time, [ :buffer_out ], :ulong, ignore_error: true
end
end
puts "Benchmark FFI time(3) with nil argument performance, #{ITER}x"
10.times {
puts Benchmark.measure {
ITER.times { Posix.time(nil) }
}
}
puts "Benchmark FFI time(3) with pre-allocated buffer performance, #{ITER}x"
buf = FFI::Buffer.new(:time_t)
10.times {
puts Benchmark.measure {
ITER.times { Posix.time(buf) }
}
}
puts "Benchmark FFI time(3) with loop-allocated buffer performance, #{ITER}x"
10.times {
puts Benchmark.measure {
ITER.times { Posix.time(FFI::Buffer.new(:time_t)) }
}
}
puts "Benchmark FFI time(3) with pre-allocated pointer performance, #{ITER}x"
buf = FFI::MemoryPointer.new(:time_t)
10.times {
puts Benchmark.measure {
ITER.times { Posix.time(buf) }
}
}
puts "Benchmark Time.now performance, #{ITER}x"
10.times {
puts Benchmark.measure {
ITER.times { Time.now }
}
}
end
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