TTIME (3)
Get LAM timer value in seconds.
C SYNOPSIS
#include <net.h>
double ttime ();
FORTRAN SYNOPSIS
double precision FTTIME()
DESCRIPTION
The
ttime()
function enables a program running on any LAM node to read the
current value of the system timer in a portable fashion.
This is useful for measuring execution times of program sections.
ttime()
returns the timer value in seconds as a double precision
floating point number.
EXAMPLE
1.5i
#include <stdio.h>
#include <net.h>
double time, start, end;
start = ttime();
my_sub();
end = ttime();
time = end - start;
printf("my_sub took: %f seconds to execute\\n", time);
BUGS
The resolution of the measurements is bound by that of the
underlying system timer used.
man3/ttol.3
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