2011-12-12: For user-space tracing, only the global UST domain ("-u" alone) is
supported meaning that if you enable a tracepoint for user-space it will be
-enabled for all applications for the current tracing session you are working
+enabled for all applications for the current recording session you are working
on.
QUICKSTART
in three sections respectively kernel tracing, user-space tracing and reading a
trace.
-See the README.md file for installation procedure or use the various Linux
+See the README.adoc file for installation procedure or use the various Linux
distribution packages.
In order to trace the kernel, you'll need the lttng-modules 2.0 compiled and
-installed. See http://lttng.org/lttng2.0 for more instructions for that part.
+installed. See https://lttng.org/lttng2.0 for more instructions for that part.
For user-space tracing, you'll need an instrumented application with lttng-ust
2.0.
lttng-tools provide a session daemon (lttng-sessiond) that acts as a tracing
registry. To trace any instrumented applications or the kernel, a registered
-tracing session is needed beforehand. To interact with the session daemon and a
-tracing session, you should use the lttng command line UI (lttng). It is also
+recording session is needed beforehand. To interact with the session daemon and a
+recording session, you should use the lttng command line UI (lttng). It is also
possible to use the liblttngctl library for tracing control (lttng.h).
Here is a list of some powerful features the LTTng 2.0 kernel tracer offers:
# lttng list -k
-1) Create a tracing session. The .lttng directory will be created with .lttngrc
+1) Create a recording session. The .lttng directory will be created with .lttngrc
file in $HOME containing the session name (here 'mysession') you are working
on.
rights, only applications of that user will be traced.
So, after instrumenting you applications with LTTng-ust 2.0
-(http://lttng.org/lttng2.0), upon startup, it will automatically register to
+(https://lttng.org/lttng2.0), upon startup, it will automatically register to
the session daemon. If there is none running, it will simply wait on a seperate
thread for a session daemon to appear and then register.
$ lttng list -u
-1) Create a tracing session. The .lttng directory will be created with a
+1) Create a recording session. The .lttng directory will be created with a
.lttngrc file in $HOME containing the session name (here 'mysession') you are
working on.