OpenTNF at SourceForge:
<http://sourceforge.net/projects/opentnf/>
From the README:
OpenTNF is a system-level tracing facility for capturing and presenting
diagnostic information and performance metrics. To use OpenTNF, a
developer first instruments one or more of the programs in a system with
``probes''. The system is then run under the control of the `trex' (TRace
EXecution) command. Under trex control, data from the embedded probes is
captured by the OpenTNF kernel subsystem. The `tnfdump' command may then
be used to extract the captured data into a TNF (Trace Normal Form) file
for subsequent analysis.
OpenTNF is currently available for the following platform:
Linux/Intel (kernel 2.2.x)
The OpenTNF project is seeking developers for ports to other platforms.
Note that some expertise in kernel module or device driver development
for the target platform is required.
The current release of OpenTNF includes the following components:
tnf.o loadable kernel module for trace buffering subsystem,
accessed via /proc/tnf/...
tnfdump extracts trace events from the kernel buffers and outputs
them to stdout in Trace Normal Form
trex TRace EXecution is a command-line tool for controlling
trace generation
twrite reads stdin one line at a time and writes each line to an
active trace buffer
Support for adding probes to programs written in various languages is
available in the `packages' subdirectory. See the package-specific
`README' files for details.
acl Allegro Common Lisp
java Java
lispworks Xanalys Lispworks
See the file `INSTALL' for installation instructions.
See the file `NEWS' for a list of major changes in the current release.
A Word of Caution
=================
This is an Alpha release of OpenTNF for Intel-based Linux systems. OpenTNF
includes a kernel subsystem as a loadable kernel module. This module has
to date seen only limited use in a relatively controlled development
environment. While there are presently no known kernel hangs or crashes,
it is important to be aware that any bugs in this module have the
potential to seriously destabilize the operating system. For this reason,
installation of this OpenTNF release should be restricted to development
and QA machines.
-- Kaelin Colclasure <······@acm.org>
2001.01.13