Rewrote Swap Allocation Mechanism

In Digital UNIX Version 4.0, the swap allocation mechanism was restructured to further reduce the fragmentation of swap space which could occur over time. Swap space is now allocated and deallocated in contiguous units, so that seek time is greatly reduced, thereby greatly improving performance.

For information on how to tune and configure the virtual memory subsystem, see the System Tuning and Performance Management guide and the System Administration guide.