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sys_attrs_psm(5)


NAME

  sys_attrs_psm - psm subsystem attributes


DESCRIPTION

  This reference page lists and describes attributes for the Process Set
  Manager (psm) kernel subsystem, which monitors the state of vital
  processes. The application interfaces to the psm subsystem are the
  cfg_psm_catops() and cfg_psm_memops() routines in the libcfg library. These
  routines create the process categories and members used by the psm
  software. Refer to cfg_psm_catops(3), cfg_psm_memops(3), and libcfg(3) for
  more information.

  Refer to the sys_attrs(5) reference page for an introduction to the topic
  of kernel subsystem attributes.

  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.

  * psm_cat_max
      The maximum number of process categories.

      Default: 512 (categories)

      Minimum: 0

      Maximum: 18,446,744,073,709,551,615

      Once the psm_cat_max value is reached, an attempt to create an
      additional category results in the [ENOSPC] error. Categories cannot be
      deleted; so, an attempt to delete a category after it is created
      results in the [ENOTSUP] error. Therefore, the psm_cat_max value must
      be increased if the program will create more than 512 categories.

  * psm_debug
      A set of bit flags, defined in the psm.h header file, that enable
      various debugging messages.

      Default: 0 (all debugging messages disabled)

  * psm_mem_autocat
      A value that determines whether new process categories are
      automatically created (1) or not created (0) at the time process
      members are instantiated.

      Default: 1 (new categories are automatically created)

      A specific process instance can be registered in only one category.  An
      attempt to register a currently running process in a category where it
      is already registered results in the [EALREADY] error. The default
      setting simplifies the boot process.

  * psm_mem_max
      The maximum number of process members that can be registered for all
      process categories.

      Default: 1024 (members)

      Minimum: 0

      Maximum: 18,446,744,073,709,551,615

      Once the psm_mem_max value is reached, an attempt to register an
      additional member results in the [ENOSPC] error.

  * psm_memcat_max
      The maximum number of process members that can be registered per
      process category.

      Default: 64 (members)

      Minimum: 0

      Maximum: 18,446,744,073,709,551,615

      Once the psm_memcat_max value is reached for a category, an attempt to
      register another member in that category results in the [ENOSPC] error.

  * psm_noevm
      A set of bit flags, defined in the psm.h header file, that disables the
      posting of selected events.

      Default: 0 (all events are posted)


SEE ALSO

  Functions: cfg_psm_catops(3), cfg_psm_memops(3), libcfg(3)

  Files: psm.h(4)

  Others: sys_attrs(5)

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