title: How to split a big file faster?
body: <p>I have a file whose size is 6TB in AWS EC2, I want to split it to multiple files which size is 1Tb, so that it can be uploaded to AWS s3 bucket
  I use this command</p>
  <p><code>split -b1T -d myfile  myfil.</code>
  but it runs so slow that after 1 hour, only 60G was split out.</p>
  <p>How can i make it faster? or is there any way to split binary files more quickly?</p>