system call -rusage

Posted on 2009-05-07
Medium Priority
Last Modified: 2012-05-06

could anyone pls help?i am using getrusage to get the max memory use and it is returning o..
this is the code:

      struct rusage usage;
      getrusage (RUSAGE_SELF, &usage);
      fprintf(stderr,"Memory Usage : %ld",usage.ru_maxrss);
thanks a miilion.
Question by:zizi21
LVL 40

Accepted Solution

mrjoltcola earned 2000 total points
ID: 24332486
ru_maxrss and other members are not implemented on Linux.

From the man page:

      The above struct was taken from 4.3BSD Reno.  Not all fields are meaningful under Linux.  In linux 2.4 only the
       fields  ru_utime,  ru_stime,  ru_minflt, and ru_majflt are maintained.  Since Linux 2.6, ru_nvcsw and ru_nivcsw
       are also maintained.

Author Closing Comment

ID: 31579282
Thanks a million

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