21 Nov
2017
21 Nov
'17
3:56 a.m.
From: Larry McVoy
So tape I can see being more weird, but isn't raw
disk just "don't put
it in buffer cache"?
One machines/controllers which are capable of it, with raw devices DMA happens
directly into the buffers in the process (which obviously has to be resident
while the I/O is happening).
Noel