On Mon, May 19, 2008 at 11:59:03PM -0700, S??bastien Bouchex Bellomi?? wrote:
> I'm working on some performance analysis with our database and it seems that
> when the file system (UFS) is mounted with forcedirectio, the IO probe are not
> triggered when an I/O event occurs.
> 
> Could you confirm that ? If so, why ?

That would be quite surprising given that the io provider is implemented by
adding static probes to the low-level I/O routines. Can you explain the
experiment you're doing?

Adam

-- 
Adam Leventhal, Fishworks                        http://blogs.sun.com/ahl
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