sys_getloadavg(3) [php man page]

SYS_GETLOADAVG(3)							 1							 SYS_GETLOADAVG(3)

sys_getloadavg - Gets system load average

SYNOPSIS

       array sys_getloadavg (void  )

DESCRIPTION

	Returns  three	samples  representing  the average system load (the number of processes in the system run queue) over the last 1, 5 and 15
       minutes, respectively.

RETURN VALUES

	Returns an array with three samples (last 1, 5 and 15 minutes).

EXAMPLES

       Example #1

	      A sys_getloadavg(3) example

	      <?php
	      $load = sys_getloadavg();
	      if ($load[0] > 80) {
		  header('HTTP/1.1 503 Too busy, try again later');
		  die('Server too busy. Please try again later.');
	      }
	      ?>

NOTES

       Note

	      This function is not implemented on Windows platforms.

PHP Documentation Group 													 SYS_GETLOADAVG(3)

pset_getloadavg(3C)					   Standard C Library Functions 				       pset_getloadavg(3C)

NAME

       pset_getloadavg - get system load averages for a processor set

SYNOPSIS

       #include <sys/pset.h>
       #include <sys/loadavg.h>

       int pset_getloadavg(psetid_t pset, double loadavg[], int nelem);

DESCRIPTION

       The  pset_getloadavg()  function  returns the number of processes assigned to the specified processor set that are 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.

       The  LOADAVG_1MIN, LOADAVG_5MIN, and LOADAVG_15MIN indices, defined  in <sys/loadavg.h>, can be used to extract the data from the appropri-
       ate element of the loadavg[] array.

       If pset is PS_NONE, the load average for processes not assigned to a processor set is returned.

       If pset is PS_MYID, the load average for the processor set to which the caller is bound is returned.  If the caller is not bound to a  pro-
       cessor set, the result is the same as if PS_NONE was specified.

RETURN VALUES

       Upon  successful  completion,  the number of samples  actually retrieved is returned. If the load average was unobtainable or the processor
       set does not exist, -1 is returned and errno is set to indicate the error.

ERRORS

       The pset_getloadavg() function will fail if:

       EINVAL	       The number of elements specified is less than 0, or an invalid processor set ID was specified.

		       The caller is in a non-global zone, the pools facility is active, and the specified processor set is not that of the zone's
		       pool.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Stable			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       uptime(1), w(1), psrset(1M), prstat(1M), pset_bind(2), pset_create(2), Kstat(3PERL), attributes(5)

SunOS 5.10							    28 Jun 2004 					       pset_getloadavg(3C)