Example 2:

Set the MAXRATES interval to one day and and the start time for the interval timer to midnight of the
current day.

MAXRATES MIDNIGHT

5.49 MEMLOCK (Lock Hercules memory)

5.49.1 Function

The MEMLOCK system parameter is used to lock Hercules memory in storage. It defines the locking
state of the allocated Hercules memory (page lock by host operating system). If the Hercules memory is
locked in storage it cannot be paged out by the host operating system. This may result in some perfor-
mance improvements.

This system parameter is available if Hercules is built with option “_HAVE_MLOCKALL”. Currently
MEMLOCK is only supported under Linux host operating systems.

5.49.2 Syntax

Descriptive

OFF

Diagram

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OFF

5.49.3 Parameter

ON

ON indicates that the memory is to be locked into storage.

OFF

OFF indicates that the memory is not to be locked into the storage.

5.49.4 Examples

Example 1:

Lock the Hercules memory in the storage.

MEMLOCK ON

Example 2:

Do not lock the Hercules memory in the storage.

MEMLOCK OFF