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man pages section 8: System Administration Commands

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Updated: Thursday, June 13, 2019
 
 

intrd(8)

Name

intrd - interrupt distribution daemon

Synopsis

intrd 

Description

The intrd daemon is started at boot time to monitor the assignments between interrupts and CPUs. If intrd decides that the current assignments are imbalanced and harmful to system performance, it will generate and implement new assignments.

Any notifications will be delivered via syslogd(8).

Because intrd dynamically monitors a system for optimal performance, it consumes a small amount of CPU time, even on an otherwise idle system. This behavior is normal.

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Availability
system/core-os
Interface Stability
Uncommitted

See Also

svcs(1), attributes(7), smf(7), svcadm(8), syslogd(8)

Notes

The interrupt distribution daemon is managed by the service management facility, smf(7), under the service identifier:


svc:/system/intrd:default

Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(8). The service's status can be queried using the svcs(1) command.

A kernel tunable parameter exists that allows the system administrator some control over the frequency at which messages are issued by intrd through syslogd(8). The bal_msg_period variable defines a 'quiet period' in seconds during which message output is suppressed. One instance of a message is output during bal_msg_period with any subsequent calls to output that message suppressed, counted and reported as a total after the period has elapsed. The default value is 1800 seconds, that is, 30 minutes, with the minimum being 10 and the maximum being 86400 seconds, that is, 24 hours. A bal_msg_period value of 0 (zero) switches off message suppression. Any change should be made using system(5).