On Thu, 11 Jan 2007, Alan wrote:
>
> Well you can - its called SG_IO and that really does get the OS out of
> the way. O_DIRECT gets crazy when you stop using it on devices directly
> and use it on files
Well, on a raw disk, O_DIRECT is fine too, but yeah, you might as well
use SG_IO at that point. All of my issues are all about filesystems.
And filesystems is where people use O_DIRECT most. Almost nobody puts
their database on a partition of its own these days, afaik. Perhaps for
benchmarking or some really high-end stuff. Not "normal users".
Linus
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