dtrace discuss - Sep 2006 - Are there any major application vedors creating USDT probes?

Does any one know about major software vendors creating their own application
probes? Could we expect Oracle and the application (GlassFish?) server vendors
to do this?

Regards,
Rikard
 
 
This message posted from opensolaris.org

Oracle has had detailed instrumentation in their database engine code for
long time already, both in server and client libraries side. I hope that
now, having Dtrace, nobody falls into the pit of starting diagnosing SQL
performance problems with Dtrace (right tools for right problems!)

While there are definitely cases where Oracle''s own instrumentation is
not
enough (like problems which you have to follow down to kernel level etc), I
don''t think Oracle will put much effort on Dtrace integration. 
Especially considering that Dtrace works only on couple of platforms in
which Oracle is interested in (and the Mac OS platform is an insignificant
niche anyway).

Don''t know about any other vendors though...

Tanel.
> -----Original Message-----
> From: dtrace-discuss-bounces at opensolaris.org 
> [mailto:dtrace-discuss-bounces at opensolaris.org] On Behalf Of 
> Rikard Thulin
> Sent: Sunday, September 03, 2006 17:41
> To: dtrace-discuss at opensolaris.org
> Subject: [dtrace-discuss] Are there any major application 
> vedors creatingUSDT probes?
> 
> Does any one know about major software vendors creating their 
> own application probes? Could we expect Oracle and the 
> application (GlassFish?) server vendors to do this?

On 9/3/06, Rikard Thulin <rikard at thulin.pp.se>
wrote:
> Does any one know about major software vendors creating their own
application probes? Could we expect Oracle and the application (GlassFish?)
server vendors to do this?
>
if you check this groups previous threads you will find info about
postgres getting probes, the others I have found are listed in
http://uadmin.blogspot.com/2006/05/what-is-dtrace.html not sure if any
major applications have them but most of the major subsystems of the
solaris kernel have them. And apache, perl and java do as well not
sure they are inturgrated yet.

James Dickens
uadmin.blogspot.com

> Regards,
> Rikard
>
>
> This message posted from opensolaris.org
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
>

On Sun, Sep 03, 2006 at 02:41:26AM -0700, Rikard Thulin
wrote:
> Does any one know about major software vendors creating their own
application probes? Could we expect Oracle and the application (GlassFish?)
server vendors to do this?
(not necessary USDT probes) symantec/veritas in VxVM/VxFS

przemol

On 9/4/06, przemolicc at poczta.fm <przemolicc at poczta.fm>
wrote:
> On Sun, Sep 03, 2006 at 02:41:26AM -0700, Rikard Thulin wrote:
> > Does any one know about major software vendors creating their own
application probes? Could we expect Oracle and the application (GlassFish?)
server vendors to do this?
>
in oracle, not likely oracle runs on too many platforms and right now
dtrace runs on only one of them, so its not worth effort, perhaps
years from now they may add them to a development version or maybe if
solaris takes off and becomes the #1 platform by far for oracle.

glassfish may do it, because as far as I know its a sun supported
project so they have a vested interest in to adding them.
> (not necessary USDT probes) symantec/veritas in VxVM/VxFS
>
symantec/veritas runs on too many platforms to worry about adding a
feature to one of them. Let''s face it, today windows is the #1 server
platform, well its where they make the most money, they are not going
to invest the money for coding, testing and more testing to a platform
that they dont see as there future, they support solaris and it works
why add more complexity to give some performance data that their other
versions dont or can''t give.

but at least with a program like VxVM/VxFS, DTrace gives you  io
probes that allow you  to watch the entry points into vxvm and vxfs
and you can then figure out which functions inside vxvm and vmfs that
are important to get the information you need. Yes it requires some
work on your part but the payoff could be worth it.

James Dickens
uadmin.blogspot.com

> przemol
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
>