On 08/12/2016 04:49, Richard Heck wrote:
I could do a valgrind thing of the same sort if you tell me what command
to run.

it's quite straightforward:

  valgrind --tool=callgrind /usr/bin/lyx
  # play with lyx, especially open a doc with a full page of text, move cursor 
on it, select parts with shift+{r,l,u,d}, etc..., then quit
  # you get a callgrind.out.<PID> file, open it with
  kcachegrind ./callgrind.out.<PID>

I'm now trying oprofile/operf, just to compare output.

        T.

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