[openbeos] Re: Question about Jobs(Command Line)
- From: "Axel Dörfler" <axeld@xxxxxxxxxxxxxxxx>
- To: openbeos@xxxxxxxxxxxxx
- Date: Thu, 12 Sep 2002 18:29:34 CEST (+0200)
Andrew wrote:
> One feature that would be really nice is if cat would use DMA.
> Currently the BFS driver uses DMA if you request a sufficiently large
block size. (>64KB?)
>
> This size is settable in the kernel file, but I have no idea how to
> programmatically access the current setting. If anyone knows that
information I would really like to know it for media kit purposes as
well.
I don't think it's possible - although you could always load that
kernel settings file.
Anyway, I think of having an additional open mode to have uncached file
access - it's already there for BSD, so we could just copy their flag
(O_DIRECT or O_NOCACHE).
It's already part of fcntl.h in the repository, and maybe we will
implement it already in R1.
Adios...
Axel.
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