Comment by simscitizen

As an example, imagine you sampled a program and got 5 CPU call stack samples.

  c               c
  b               b               d
  a       a       a       a       a
  main    main    main    main    main

In a flamegraph, you would see:

  [c              ]
  [b              ][d     ]
  [a                                     ]
  [main                                  ]