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Full Discussion: Help with load average?
Top Forums UNIX for Dummies Questions & Answers Help with load average? Post 302559244 by Corona688 on Monday 26th of September 2011 01:49:12 PM
Depends what you want it to be. If your system is always busy, high is normal. Low is normal on a mostly idle system.

It's more useful for comparison. Sudden, unexpected changes can be indicative of problems. Low average on a system supposed to be busy -- did some daemon crash and die? High average on usually-idle system -- what's causing it?
 
Test Your Knowledge in Computers #879
Difficulty: Easy
Supervisory Control and Data Authorization (SCADA) is a control system architecture .
True or False?

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pm_busy_component(9F)					   Kernel Functions for Drivers 				     pm_busy_component(9F)

NAME
pm_busy_component, pm_idle_component - Control device component availability for Power Management SYNOPSIS
#include <sys/ddi.h> #include <sys/sunddi.h> int pm_busy_component(dev_info_t *dip, int component); int pm_idle_component(dev_info_t *dip, int component); INTERFACE LEVEL
Solaris DDI specific (Solaris DDI) PARAMETERS
pm_busy_component() dip Pointer to the device's dev_info structure. component The number of the component to be power-managed. pm_idle_component() dip Pointer to the device's dev_info structure. component The number of the component to be power-managed. DESCRIPTION
The pm_busy_component() function sets component of dip to be busy. Calls to pm_busy_component() are stacked, requiring a corresponding num- ber of calls to pm_idle_component() to make the component idle again. When a device is busy it will not be power-managed by the system. The pm_idle_component() function marks component idle, recording the time that component went idle. This function must be called once for each call to pm_busy_component(). A component which is idle is available to be power-managed by the system. The pm_idle_component() func- tion has no effect if the component is already idle, except to update the system's notion of when the device went idle. Note - If these functions are called as a result of entry into the driver's attach(9E), detach(9E) or power(9E) entry point, these func- tions must be called from the same thread which entered attach(9E), detach(9E) or power(9E). RETURN VALUES
The pm_busy_component() and pm_idle_component() functions return: DDI_SUCCESS Successfully set the indicated component busy or idle. DDI_FAILURE Invalid component number component or the device has no components. CONTEXT
These functions can be called from user or kernel context. These functions may also be called from interrupt context, providing they are not the first Power Management function called by the driver. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
power.conf(4), pm(7D), attach(9E), detach(9E), power(9E), pm_raise_power(9F), pm(9P), pm-components(9P) Writing Device Drivers SunOS 5.10 21 July 2004 pm_busy_component(9F)

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