dtrace discuss - Mar 2007 - Information about new plockstat probe points

It seems more probes have been added to the plockstat provider[1] than
what''s mentioned in the big dtrace manual[2]. In particular, the
following
probes are new

mutex-spun
mutex-blocked
rw-blocked

Is there any documentation on when these probes are fired and what the
arguments indicate?

Thanks,
Pratik

[1] <
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/threads/plockstat.d
>
[2] <http://docs.sun.com/app/docs/doc/817-6223/6mlkidlm3?a=view>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://mail.opensolaris.org/pipermail/dtrace-discuss/attachments/20070329/50912ec1/attachment.html>

Hi Pratik,

I was noticing that the plockstat command, which is a dtrace consumer, 
appears to do so by passing script strings to the dtrace command 
parser.  Some of these use the new probes.  I didn''t look any further 
than just noticing that the probes are being used, but inspection of 
these strings, in combination with running the plockstat command, might 
lead you to some conclusions about how the new probes are used.

http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/cmd/plockstat/plockstat.c

Chip

Pratik Solanki wrote:
> It seems more probes have been added to the plockstat provider[1] than 
> what''s mentioned in the big dtrace manual[2]. In particular, the 
> following probes are new
>
> mutex-spun
> mutex-blocked
> rw-blocked
>
> Is there any documentation on when these probes are fired and what the 
> arguments indicate?
>
> Thanks,
> Pratik
>
> [1] < 
>
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libc/port/threads/plockstat.d>
> [2] <http://docs.sun.com/app/docs/doc/817-6223/6mlkidlm3?a=view 
> <http://docs.sun.com/app/docs/doc/817-6223/6mlkidlm3?a=view>>
> ------------------------------------------------------------------------
>
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org