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system call -rusage

Posted on 2009-05-07
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Last Modified: 2012-05-06
hi,

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.
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Question by:zizi21
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2 Comments
 
LVL 40

Accepted Solution

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mrjoltcola earned 500 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.
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Author Closing Comment

by:zizi21
ID: 31579282
Thanks a million
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