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sys_attrs_kevm(5)					    sys_attrs_kevm(5)



NAME

  sys_attrs_kevm - kevm	subsystem attributes

DESCRIPTION

  This reference page lists and	describes attributes for the Kernel Event
  Manager (kevm) subsystem. See	sys_attrs(5) for general guidelines about
  changing system attributes. See evm(5) for more information about Event
  Manager software.

  An asterisk (*) preceding the	name of	an attribute in	the following list
  means	that the attribute can be configured at	run time. Values of other
  attributes cannot be changed without rebooting the system.

  * do_reset_stats
      A	value that can be used to reinitialize all of the kevm stats_* attri-
      butes. Changing do_reset_stats to	any non-zero value causes all the
      stats_* attributes to be reset to	zero, and then do_reset_stats itself
      is automatically reset to	zero.

      Default value: 0

      Minimum value: 0

      Maximum value: 2,147,483,647

      If you use dxkerneltuner to change the value of do_reset_stats, the
      updated attribute	values are not visible until you exit and restart
      dxkerneltuner.

  events_in_queue_count
      The number of EVM	events currently queued	in kernel space	for collec-
      tion by the EVM daemon.  This attribute is query only.

  evm_interrupt_buffer_size
      The size (in bytes) of the fixed buffer used to queue any	EVM events
      that are posted while the	kernel is executing at interrupt level.
      Events are moved out of the buffer as soon as the	system returns to
      normal operating mode. The default buffer	size should be adequate	for
      most systems.

      Default value: 65, 536 (bytes)

      Minimum value: 1

      Maximum value: 1,844,674,407,370

  kevm_is_open
      A	value that indicates whether a process (such as	kevmd) currently has
      or does not have the kevm	interface in an	open state. The	value 1	means
      that a process has the interface open (always the	case if	kevmd is run-
      ning) and	the value 0 means that no process has the interface open.
      This attribute is	query only.

  kevm_major
      The major	device number being used by the	kevm interface.	This attri-
      bute is query only.

  * stats_events_in
      The number of EVM	events that have been posted in	the kernel since the
      the system was started or	the counter was	reset.	You can	reset
      stats_events_in directly,	or by changing do_reset_stats to a non-zero
      value.

      Minimum value: 0

      Maximum value: 2,147,483,647

  * stats_events_read
      The number of EVM	events that have been read from	kernel space by	the
      EVM daemon (evmd)	since the system was started or	the counter was
      reset.  You can reset stats_events_read manually or by changing
      do_reset_stats to	a non-zero value.

      Minimum value: 0

      Maximum value: 2,147,483,647

  * stats_queue_high_watermark
      The highest number of EVM	events that have been queued in	kernel space
      waiting to be collected by the EVM daemon	since the the system was
      started or the counter was reset.	 You can reset
      stats_queue_high_watermark manually or by	changing do_reset_stats	to a
      non-zero value.

      Minimum value: 0

      Maximum value: 2,147,483,647

SEE ALSO

  Commands: dxkerneltuner(8), sysconfig(8), sysconfigdb(8)

  Others: evm(5), sys_attrs(5)

  System Administration

  System Configuration and Tuning