unlockable_mem(5)

DESCRIPTION

The unlockable_mem tunable is obsolete and has been removed.

Memory locking allows the privileged user to specify which pages need to remain in memory, and unaffected by the swap process. This feature allows you to ensure that memory access times are unaffected by delays introduced by memory paging and swapping. For example, locking is a tool provided to privileged users on a system that is short on physical memory. Instead of having these privileged processes swap like the rest of the processes, they can lock portions of their address space. Once the pages are locked in for the privileged processes, they will no longer have to worry about memory contention. The unprivileged processes however, will have to compete for memory.

unlockable_mem provides you with a limiting factor on this privileged behavior, by setting the amount of memory which cannot be locked by user processes.

WARNINGS

Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation, some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tunable values, consult the documentation for the kernel software being installed. For information about optional kernel software that was factory installed on your system, see HP-UX Release Notes at http://docs.hp.com.

AUTHOR

unlockable_mem was developed by HP.