Re: question about call graph

[Lisong Xu <lis...@gm...>]

Maynard,

Thank you very much! One more question about that equation.

On Mon, Jun 18, 2012 at 10:05 AM, Maynard Johnson <may...@us...>wrote:

>
> 2. my understanding is that the total number of samples above the
> non-indented line (functions called it) should be equal to the total number
> of samples of below it (functions called by it). However, in this example,
> the number of scoped_ptr samples is 88, but the number of Impl and
> checked_delete samples is 99. Why there is a difference between 88 and 99?
>
> There is no such equation.  Take the example of a()->b()->printf(), but
> b() only calls printf() when a() passes a particular value.  The callgraph
> entry for b() would show a higher count for a() than for printf().
>
>
For your example, I guess we will have the following output
  x   100 a
y     ...   b
  y  ....   b [self]
  z  ....   printf

According to your example, we have z < x. But I think x = y+z. is it right?

Thank you again!
Lisong