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

["roland" <for_spam@gmx.de>]

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on a first view, this project seems a little bit outdated - newspage stops at 17/10/2002.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