ALTMEM(4) FreeBSD Kernel Interfaces Manual ALTMEM(4)
NAME
altmem - Alternative memory disk driver
SYNOPSIS
altmem* at altmemdev?
DESCRIPTION
The altmem driver enables use of physical memory that is normally
inaccessible by the machine-dependent pmap(9) as a swap device.
When an alternative memory disk device is present, this device is
generally 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 ALSO
md(4), fstab(5), swapctl(8)
HISTORY
The altmem device driver appeared in NetBSD 6.0.
AUTHORS
Jared D. McNeill <
[email protected]>
FreeBSD 14.1-RELEASE-p8 March 11, 2009 FreeBSD 14.1-RELEASE-p8