title: Pprof and golang - how to interpret a results?
body: <p>I am trying to use pprof on my program, however, I have slightly different results from articles I read (links below). In my results, I am getting such table:</p>
  
  <pre><code>(pprof) top10
  1.65s of 1.72s total (95.93%)
  Showing top 10 nodes out of 114 (cum &gt;= 0.01s)
        flat  flat%   sum%        cum   cum%
       1.19s 69.19% 69.19%      1.20s 69.77%  syscall.Syscall
       0.16s  9.30% 78.49%      0.16s  9.30%  runtime._ExternalCode
  </code></pre>
  
  <p>what are this columns: <code>flat flat% sum% cum cum%</code>?</p>
  
  <p>Articles I was reading: 
  <a href="https://software.intel.com/en-us/blogs/2014/05/10/debugging-performance-issues-in-go-programs" rel="noreferrer">https://software.intel.com/en-us/blogs/2014/05/10/debugging-performance-issues-in-go-programs</a>
  <a href="http://blog.golang.org/profiling-go-programs" rel="noreferrer">http://blog.golang.org/profiling-go-programs</a></p>