gtpo1m0zOperations

ZACLV-Alter CPU Loop and Create Macro Control Levels

Use this command to change the control levels for the CPU loop, the CREATE macros, or the input list. The CPU loop levels determine when to service the various lists in the loop program. The CREATE macro levels determine when to activate a CREATE macro. Main storage availability determines the levels in each case. You can use this command to tune or change the activity of the real-time system in a dynamic environment.

Requirements and Restrictions

Format




Notes:

  1. You can also separate the parameters with a comma (,).

MXECBS
changes the maximum number of entry control blocks (ECBs) allowed in the TPF system.

MNFRAI
changes the minimum number of frames that must be available to service the input list.

MNCMBI
changes the minimum number of common blocks that must be available to service the input list.

MNECBI
changes the minimum number of ECBs that must be available to service the input list.

MNSWBI
changes the minimum number of system work blocks (SWBs) that must be available to service the input list.

MNIOBI
changes the minimum number of I/O blocks that must be available to service the input list.

MXECBD
changes the maximum number of ECBs in the TPF system that cannot be exceeded to service the deferred list.

MNFRAT
changes the minimum number of frames that must be available to activate the time available supervisor.

MNCMBT
changes the minimum number of common blocks that must be available to activate the time available supervisor.

MNECBT
changes the minimum number of ECBs that must be available to activate the time available supervisor.

MNSWBM
changes the minimum number of SWBs that must be available to activate a CREMC macro.

MNSWBD
changes the minimum number of SWBs that must be available to activate a CREDC macro.

MNSWBX
changes the minimum number of SWBs that must be available to activate a CREXC macro.

value
is a decimal number from 1-32 767.

Additional Information

Examples

New values are assigned to the MXECBS and MNFRAI parameters in the following example.

+--------------------------------------------------------------------------------+
|User:   ZACLV MXECBS-200 MNFRAI-100                                             |
|                                                                                |
|System: ACLV0001I 15.28.54  STORAGE CONTROLS                                    |
|                                                                                |
|             DESCRIPTION     VALUE   ZACLV PARM                                 |
|                                                                                |
|          SYST   MAX ECB       200     MXECBS                                   |
|          INPUT  MIN FRAME     100     MNFRAI                                   |
|                 MIN COMMON     18     MNCMBI                                   |
|                 MIN ECB       100     MNECBI                                   |
|                 MIN SWB        38     MNSWBI                                   |
|                 MIN IOB        51     MNIOBI                                   |
|          DEFER  MAX ECB        40     MXECBD                                   |
|          TAS    MIN FRAME     300     MNFRAT                                   |
|                 MIN COMMON     59     MNCMBT                                   |
|                 MIN ECB       200     MNECBT                                   |
|          CREM   MIN SWB        26     MNSWBM                                   |
|          CRED   MIN SWB        64     MNSWBD                                   |
|          CREX   MIN SWB        64     MNSWBX                                   |
|        NOTE: ABOVE DISPLAY REFLECTS UPDATED LEVELS                             |
+--------------------------------------------------------------------------------+

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