internals / rusage

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NAME

rusage() - reports information gathered by the getrusage() system call

SYNOPSIS

mapping rusage( void );

DESCRIPTION

This  efun  collects  information  gathered  via the getrusage() system
call.  Read the getrusage() man  page  for  more  information  on  what
information   will   be  collected.   Some  systems  do  not  have  the
getrusage() system call but do have the times() system call.  On  those
systems,  only  "utime"  and  "stime"  will  be  available.   Times are
reported in milliseconds.

Here is an example usage of rusage():

void
create()
{
mapping info;

info = rusage();
write("user time = " + info["utime"] + "ms\n");
write("system time = " + info["stime"] + "ms\n");
}

The available fields are:

utime, stime,  maxrss,  ixrss,  idrss,  isrss,  minflt,  majflt,
nswap,   inblock,  oublock,  msgsnd,  msgrcv,  nsignals,  nvcsw,
nivcsw.

SEE ALSO

time_expression(3), function_profile(3), time(3), uptime(3)