[uml-devel] Re: [uml-user] LTT in UML ?

[uml-devel] Re: [uml-user] LTT in UML ?

[roland]

wow! interesting piece of software! :)

on a first view, this project seems a little bit outdated - newspage stops at 17/10/2002.

what about asking the LTT people (post to LTT Mailinglist), if they would like to add support 
for "just another ARCH" (ARCH=um) in LTT ?

maybe thats not too hard to do for them. 

i`m no kernel hacker, but for me it looks like the biggest part of LTT is a kernel module and 
non-arch-dependent stuff. maybe i`m wrong - perhaps someone more experienced could take a look?
http://www.opersys.com/ftp/pub/LTT/TraceToolkit-0.9.5a.tgz -> 
TraceToolkit-0.9.5/Patches/patch-ltt-linux-2.4.16-vanilla-020415-1.14

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

regards
roland



----- Original Message ----- 
From: "David Bahi" <dbahi@enterasys.com>
To: <user-mode-linux-user@lists.sourceforge.net>
Sent: Wednesday, May 05, 2004 4:38 PM
Subject: [uml-user] 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
> User-mode-linux-user@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
> 


-------------------------------------------------------
This SF.Net email is sponsored by Sleepycat Software
Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to 
deliver higher performing products faster, at low TCO.
http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel

Re: [uml-devel] Re: [uml-user] LTT in UML ?

[Nuno Silva]

[-- Attachment #1: Type: text/plain, Size: 259 bytes --]

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

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 256 bytes --]

Re: [uml-devel] Re: [uml-user] LTT in UML ?

[roland]

 > 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 ;)

me idiot :D



----- Original Message ----- 
From: "Nuno Silva" <nuno.silva@vgertech.com>
To: "roland" <for_spam@gmx.de>
Cc: "David Bahi" <dbahi@enterasys.com>; "uml-user" <user-mode-linux-user@lists.sourceforge.net>;
<user-mode-linux-devel@lists.sourceforge.net>; <info@opersys.com>
Sent: Friday, May 07, 2004 4:20 AM
Subject: Re: [uml-devel] Re: [uml-user] LTT in UML ?




-------------------------------------------------------
This SF.Net email is sponsored by Sleepycat Software
Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to 
deliver higher performing products faster, at low TCO.
http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel

Re: [uml-devel] Re: [uml-user] LTT in UML ?

[David Bahi]

[-- Attachment #1: Type: text/plain, Size: 876 bytes --]

-----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-----

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 254 bytes --]

Re: [uml-devel] Re: [uml-user] LTT in UML ?

[Joe Marzot]

you are not the only one interested. There is a difference in what would 
be shown with tracing UML from the host vs. tracing the guest 
processes/kernel in a UML guest. I have the patches applied here as well 
but it does not look like it is working. let's keep in touch as we 
discover things.

regards, GSM

David Bahi wrote:
> -----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-----





-------------------------------------------------------
This SF.Net email is sponsored by Sleepycat Software
Learn developer strategies Cisco, Motorola, Ericsson & Lucent use to 
deliver higher performing products faster, at low TCO.
http://www.sleepycat.com/telcomwpreg.php?From=osdnemail3
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel