Gprof does not generate a gmon.out-file at all :-(

[Dave Korn]

----Original Message----
>From: Clemens Eisserer
>Sent: 16 September 2005 09:19

> Hmm, could it be that gprof just accumulates the time of all external
> functions (=functions in libs not compiled with -pg) to main?

  Most likely; and also any static c-tors that need running at startup, etc.
I'm not a gprof user myself, but I would expect that non-profiled functions
would be absorbed into their callers' times.

> I have tons of fread's all over my code and I think that those are the
> bottlenecks, however since the profile of gprof seems to be "wrong" I
> do not start to work and maybe I am just complicating the code
> although this would not be needed.

>>  Zeit   seconds   seconds  Aufrufe ms/Aufru ms/Aufru  Name
>>  79.40      3.96     3.96                             main
>>  20.25      4.97     1.01  1572864     0.00     0.00  getpix
>>   0.40      4.99     0.02        2    10.01    10.01  fixH11ByteOrder

  So, are we talking about xwdtopnm.c (or some custom variation of it) here?
Yeh, unless you recompile your X-devel and libnetpbm libs with -pg, then
_all_ those function calls to X and pm_* functions that we see in main are
just going to be added into the time recorded for main.

    cheers,
      DaveK
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