LTT in UML ?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

i was wondering if some other talented soul has
done this and would make the patches available?
the only message in the archives related to this
is (in 2001) here:

~ http://marc.theaimsgroup.com/?l=user-mode-linux-user&m=99601814424122&w=2

and there's no reply....

the patches here http://www.opersys.com/LTT/ apply to many archs, including i386. but the arch/um differs significantly from arch/i386 so applying the changes isn't something i have great hope of doing successfully myself...

here's a blurb from the LTT site:

~ The following are some of LTT's main features:

~ * Linux kernel tracing capabilities with 48 unique trace points
~ <http://www.opersys.com/LTT/dox/trace-points.html>.

~        * Variable-length events minimizing overall trace size.
~        * Micro-second event time-stamps.
~        * Minimal performance overhead (< 2.5 %).
~        * Completely configurable trace option during kernel build.
~        * Multi-platform support: i386, PowerPC, S/390, SuperH, ARM, and MIPS.
~        * Fully-featured graphical user interface
~          <http://www.opersys.com/LTT/screenshots.html>
~          with event graph, system and per-process analysis, and raw event descriptions.
~        * Cross-platform trace reading capabilities.
~        * Single copy of traces between kernel-space and permanent storage.
~        * User-selectable and dynamically configurable event trace mask.
~        * Dynamic creation and logging of custom events both in kernel and in user space.
~        * Support for custom formatting of custom events.
~        * Dynamic probe integration with IBM's DProbes

~ <http://oss.software.ibm.com/developer/opensource/linux/projects/dprobes/>.
~ * Support for the Real-Time Application Interface
~ <http://www.aero.polimi.it/projects/rtai/> (aka RTAI).
~ * General hooking interface available within kernel trace facility.

~    Many of these features hide many sub-features which contribute
~    to the completeness of the  toolset provided. We invite you to
~    read through the website and, if need be, ask questions on the
~    LTT mailing list.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (MingW32)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFAmPxk3XQ4zakZ3z4RAhFuAJ9gmTvPV7iEIdK8dVlMpydvM4P9RACeN+ki rVKGcIu2H9D6lW/EikInUvA=
=57iq
-----END PGP SIGNATURE-----

-------------------------------------------------------
This SF.Net email is sponsored by: Oracle 10g
Get certified on the hottest thing ever to hit the market... Oracle 10g. Take an Oracle 10g class now, and we'll give you the exam FREE.
http://ads.osdn.com/?ad_id=3149&alloc_id=8166&op=click
_______________________________________________
User-mode-linux-user mailing list [email protected]
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user

probably, having an LTT option for the uml-kernel could give some benefit (performance optimization?) for the uml project ?

probably, having an LTT option for the uml-kernel could give some

for the uml project ?

You can do that already. Run LTT on the host and "trace" the UML processes ;)

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

right. yet, not what i was going for. i'd like to profile applications running under/within the uml itself.

still, looks like it's just me that's interested in this so i'll give it a go when i get a chance and post specific questions to this list when i'm lost.

- --
db

Nuno Silva wrote:

| roland wrote:
|
| [..]
|
|  >
|  > probably, having an LTT option for the uml-kernel could give some
| benefit (performance optimization?)
|  > for the uml project ?
|  >
|
| You can do that already. Run LTT on the host and "trace" the UML
| processes ;)
|
| Regards,
| Nuno Silva

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.2.4 (MingW32)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org

iD8DBQFAn7GQ3XQ4zakZ3z4RApfJAJ4/95BNqYzt/uRWCPWPwHlozVBvrACfTkjH 2qU4ecl/5pHhbe0Pl+MfB+8=
=yEiC
-----END PGP SIGNATURE-----