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The primary line in a call graph entry is the line that
describes the function which the entry is about and gives the overall
statistics for this function.
For reference, we repeat the primary line from the entry for function
report
in our main example, together with the heading line that
shows the names of the fields:
index % time self children called name
...
[3] 100.0 0.00 0.05 1 report [3]
Here is what the fields in the primary line mean:
index

Entries are numbered with consecutive integers. Each function
therefore has an index number, which appears at the beginning of its
primary line.
Each crossreference to a function, as a caller or subroutine of
another, gives its index number as well as its name. The index number
guides you if you wish to look for the entry for that function.
% time

This is the percentage of the total time that was spent in this
function, including time spent in subroutines called from this
function.
The time spent in this function is counted again for the callers of
this function. Therefore, adding up these percentages is meaningless.
self

This is the total amount of time spent in this function. This
should be identical to the number printed in the
seconds
field
for this function in the flat profile.
children

This is the total amount of time spent in the subroutine calls made by
this function. This should be equal to the sum of all the
self
and children
entries of the children listed directly below this
function.
called

This is the number of times the function was called.
If the function called itself recursively, there are two numbers,
separated by a `+'. The first number counts nonrecursive calls,
and the second counts recursive calls.
In the example above, the function
report
was called once from
main
.
name

This is the name of the current function. The index number is
repeated after it.
If the function is part of a cycle of recursion, the cycle number is
printed between the function's name and the index number
(see section How Mutually Recursive Functions Are Described). For example, if function
gnurr
is part of
cycle number one, and has index number twelve, its primary line would
be end like this:
gnurr <cycle 1> [12]
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