ALTMEM(4) BSD Kernel Interfaces Manual ALTMEM(4)NAMEaltmem — Alternative memory disk driver
SYNOPSIS
altmem* at altmemdev?
DESCRIPTION
The altmem driver enables use of physical memory that is normally inac‐
cessible by the machine-dependent pmap(9) as a swap device.
When an alternative memory disk device is present, this device is gener‐
ally preferred to hard disk-based swap space. See the swapctl(8) and
fstab(5) man pages for instructions on how to assign priorities to swap
devices.
FILES
/dev/altmem?? block mode alternative memory disk devices.
/dev/raltmem?? raw mode alternative memory disk devices.
SEE ALSOmd(4), fstab(5), swapctl(8)HISTORY
The altmem device driver appeared in NetBSD 6.0.
AUTHORS
Jared D. McNeill ⟨jmcneill@NetBSD.org⟩
BSD March 11, 2009 BSD