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Re: change the sampling time in the gprof
<perugupa@csee.wvu.edu> writes:
> i am extracting the execution profiles of the test cases on gcc sing
> gprof.the output of the profile has all 0's for the self seconds
> colomn.is there any way to change the sample time so that i can get
> reasonable numbers in the colomn.default is 0.01 sec.i would like to
> change that to 0.001.any help will be appreciated.thank you.
This is not a gcc question.
The profiling routines are part of the system library--glibc on
GNU/Linux systems. Those routines invoke system calls. gprof is part
of the binutils.
On typical Unix systems, as well as on GNU/Linux, the precision of the
gprof timer is determined by the behaviour of the profil() function.
I don't know whether there is any way to adjust that on your
particular system.
Ian