LTTng-UST, the Linux Trace Toolkit Next Generation Userspace Tracer, is
port of the low-overhead tracing capabilities of the LTTng kernel tracer
to user-space. The library "liblttng-ust" enables tracing of
applications and libraries.
Changelog:
2012-02-02 lttng-ust 1.9.5
* UST comm ABI: Add padding, push version to 2.0
* Update loglevel names
* Implement loglevels as event and wildcard attributes
* Update loglevel ABI: only loglevel value/enum is known by UST
* Pre-assign fixed loglevels
* Remove old (now unused) loglevel control code entirely
* Update loglevel selection ABI
* Use boot_id as monotonic clock uuid
* clock: add clock description to metadata
* Properly fix the timekeeping overflow detection
* Revert "Fix timestamps for slow-paced event rates"
* Revert "Force 64-bit timestamps"
* Declare struct lttng_ust_calibrate
* Force 64-bit timestamps
* demo program: ensure we don't link demo on useless libs
* ust comm: Receive second FD even if 1st receive failed
* ust consumer: close shm fd after mapping it
* Add a comment about which wait fd is closed early by UST.
* Remove leftover structure in ust-abi.h
* Close stream and channel file descriptors as soon as passed to
sessiond
* Fix AC_LANG_SOURCE usage: only takes one parameter
* Fix timestamps for slow-paced event rates
* configure.ac: Use AC_LANG_SOURCE for if else macros
* Add execution instructions to the demo test program
* Force the building of shared noinst libraries in the demo test
program.
* Only print the futex perror in debug mode
Project website: http://lttng.org/lttng2.0
Download link: http://lttng.org/files/lttng-ust/
(please refer to the README file for installation instructions)
--
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com
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