O_DIRECT also works for me on ext3 using regular write and async i/o
using 512-byte i/o.
Is your buffer alignment correct?
O_DIRECT requires a 512-byte aligned buffer.
Daniel
On Wed, 2003-08-06 at 14:32, RaTao wrote:
> Hi!
>
> I've correct my (don't know how) misspelled subject :)
>
> Andrew Morton wrote:
>
> [..snip..]
> >
> >
> > It works OK here.
> >
> >
> >>- vmstat doesn't show bi/bo for O_DIRECT's disk access.
> >
> >
> > It does here.
> >
>
> Maybe goofed somewhere. I can't test it again today, I'll do it tomorrow.
>
>
> >
> > I'd be suspecting your test app: is it checking the return value of all
> > syscalls?
>
> I'll double check.
> Thanks,
>
> Ratao
>
>
>
> -
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