getloadavg(3) - NetBSD Manual Pages

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GETLOADAVG(3)           NetBSD Library Functions Manual          GETLOADAVG(3)


NAME

     getloadavg -- get system load averages


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <stdlib.h>

     int
     getloadavg(double loadavg[], int nelem);


DESCRIPTION

     The getloadavg() function returns the number of processes in the system
     run queue averaged over various periods of time.  Up to nelem samples are
     retrieved and assigned to successive elements of loadavg[].  The system
     imposes a maximum of 3 samples, representing averages over the last 1, 5,
     and 15 minutes, respectively.


RETURN VALUES

     If the load average was unobtainable, -1 is returned; otherwise, the num-
     ber of samples actually retrieved is returned.


SEE ALSO

     uptime(1), kvm_getloadavg(3), sysctl(3)


HISTORY

     The getloadavg() function appeared in 4.3BSD-Reno.

NetBSD 6.1.2                    April 12, 2011                    NetBSD 6.1.2