- LTTng 2.x Tracer Toolchain
- Trace viewers
- Userspace RCU
- Feature matrix
- Bug tracker
LTTng Toolchain 2.1.0 is out!
Just in time for the end of the world/holidays, the LTTng 2.1 tracer toolchain is finally available!
You will find below the respective new features/changelog for each projects:
LTTng Tools 2.1.0:
New features now:
Introduce the new lttng-relayd component used to receive the trace on a
remote host. For this, we've added the new lttng enable-consumer command
that allow the user to control the consumer destination of the session
(disk or network). The lttng_set_consumer_url() API call is added with
enable_consumer and disable_consumer as well.
Filtering for UST
A --filter has been added to lttng enable-event command and a new
lttng_enable_event_with_filter() API call.
Now, by default, the stop command waits for the data traced to be
written completely on disk or over the network before returning. This
means that right after the command returns, you are assured that the
data is available for any viewer. This can be override by --no-wait or
by using the lttng_stop_session_no_wait. Also we've added the
lttng_data_pending() API call.
Using lttng_health_check() with the right health component (see
lttng.h), you can now monitor the health of the session daemon for most
of its subsystems. See lttng-health-check(3) for more information.
This version concludes more than a year of development which introduce
very exciting set of features. As usual here is the changelog:
2012-12-20 (13th Baktun) lttng-tools 2.1.0:
LTTng UST 2.1.0:
Highlights of the 2.1 UST release:
Filtering by event field content is now supported.
lttng enable-event -u 'myevent' --filter 'myfield > 50 && otherfield < 100'
(see lttng(1) for details)
Applications built against lttng-ust 2.0 still work with
lttng-ust 2.1, but it is recommended to rebuild the tracepoint probes
if you want to be able to use filters on those events.
It must be used with lttng-tools 2.1, which supports network
streaming over TCP.
Detailed Changelog since 2.1.0-rc2:
2012-12-20 (13th Baktun) lttng-ust 2.1.0:
LTTng Modules 2.1.0:
Highlights of the 2.1 lttng-mo