FTP_HOST = "ftp.pepe.com"
FTP_USER = "coco"
FTP_PASS = "coco"
#  create>> dd if=/dev/zero of=output.file bs=1024 count=1024
UPLOAD_FILE = File.new("./output.file")

def upload_file
  file_time = Time.now.strftime("%Y%m%d%H%M%S%L")
  file_name = "file_#{file_time}-#{Thread.current.object_id}-.xxx"
  puts "Uploading: #{file_name} [size: #{UPLOAD_FILE.size}]"

  puts Benchmark.measure {
   Net::FTP.open(FTP_HOST, FTP_USER, FTP_PASS) do |ftp|
    ftp.putbinaryfile(UPLOAD_FILE, file_name)
   end
  }
end



threads = []
130.times {
  threads << Thread.new { upload_file }
}

threads.each { |thr| thr.join }