title: Interpreting openssl speed output for rsa with multi option
body: <p>I am trying to evaluate CPU performance.  I have an Intel(R) Xeon(R) CPU E5-1650 v2 @ 3.50GHz and ran the following command: <code>openssl speed rsa  -multi 12 2&gt;&amp;1 |tee openssl-log.txt</code> and got the following output:</p>
  
  <pre><code>                   sign   verify   sign/s   verify/s
  rsa  512 bits 0.000008s 0.000001s 118050.6 1200000.0
  rsa 1024 bits 0.000038s 0.000002s  26098.7 451567.0
  rsa 2048 bits 0.000239s 0.000007s   4183.6 135606.3
  rsa 4096 bits 0.001713s 0.000028s    583.7  35778.4
  </code></pre>
  
  <p>Can someone please help me understand the output?  What does the column sign and verify mean?  The docs does not seem to explain much:
  <a href="https://www.openssl.org/docs/apps/speed.html" rel="noreferrer">https://www.openssl.org/docs/apps/speed.html</a></p>
  
  <p>Thank you in advance.</p>