On a Debian-derived distro (Kubuntu 9.04) on a Dell Inspiron (2 GHz
Intel, 2 GiB RAM), I notice that my hard drive does not have DMA
enabled:
$ sudo hdparm /dev/sda
/dev/sda:
IO_support = 0 (default)
readonly = 0 (off)
readahead = 256 (on)
geometry = 9729/255/63, sectors = 156301488, start = 0
This is my first sata hard drive, so I do not know if sata drives need
DMA or if maybe the sata controller does the copying instead of the
CPU. Googling the subject leaves me with no definite conclusion. What
say the laptop list?
Thanks!