Hi,

OK, correction, the probes from the io provider are correctly triggered with 
forcedirectio enabled but only once !

Here is where I am :
Let create a file with mkfile 100m <path>

fbt:ufs:directio_start:entry probe is fired multiple times but the probes from 
the io provider are only fired once each. Like this :
[...]
20   4641              bdev_strategy:start io start
20   4631               biowait:wait-start io wait-start
20   4630                biowait:wait-done io wait-done
21   4629                     biodone:done io done
[...]

io:::start is triggered at the beginning of the mkfile call and nothing 
afterward.

So going back to the beginning of my problem (which is having io stats on a 
forectdirectio mounted partition); I'm still wondering how to do that... If you 
have some hints...

Seb

-----Original Message-----
From: Adam Leventhal [mailto:[EMAIL PROTECTED] 
Sent: vendredi 23 mai 2008 19:00
To: Jim Mauro
Cc: Sébastien Bouchex Bellomié; [email protected]; [EMAIL 
PROTECTED]
Subject: Re: [dtrace-discuss] IO probes and forcedirectio

On Fri, May 23, 2008 at 12:32:43PM -0400, Jim Mauro wrote:
> I don't understand the question.
> I see "forcedirectio" set as a mount option, so I would expect
> ufs:directio_start:entry to fire....

Yes, but we're wondering why io:::start isn't firing.

Adam

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