1 title: The <span class="reset-text-transform">LTTng</span> Documentation
4 title: What's new in LTTng 2.7?
9 title: What is tracing?
10 - id: lttng-alternatives
11 title: Alternatives to LTTng
12 - id: installing-lttng
13 title: Installing <span class="reset-text-transform">LTTng</span>
15 - id: desktop-distributions
16 title: Desktop distributions
21 - id: ubuntu-official-repositories
22 title: Official repositories
29 - id: enterprise-distributions
30 title: "Enterprise distributions (<abbr title=\"Red Hat Enterprise Linux\">RHEL</abbr>, <abbr title=\"SUSE Linux Enterprise Server\">SLES</abbr>)"
31 - id: building-from-source
32 title: Building from source
34 title: Getting started with <span class="reset-text-transform">LTTng</span>
36 - id: tracing-the-linux-kernel
37 title: Tracing the Linux kernel
38 - id: tracing-your-own-user-application
39 title: Tracing your own user application
40 - id: viewing-and-analyzing-your-traces
41 title: Viewing and analyzing your traces
42 - id: understanding-lttng
43 title: Understanding <span class="reset-text-transform">LTTng</span>
49 title: Tracing session
55 - id: channel-overwrite-mode-vs-discard-mode
56 title: Overwrite and discard event loss modes
57 - id: channel-subbuf-size-vs-subbuf-count
58 title: Sub-buffers count and size
59 - id: channel-switch-timer
61 - id: channel-buffering-schemes
62 title: Buffering schemes
68 - id: plumbing-overview
73 title: Consumer daemon
76 - id: liblttng-ctl-lttng
77 title: Control library and command line interface
79 title: User space tracing library
81 title: <span class="reset-text-transform">LTTng</span> kernel modules
83 title: Using <span class="reset-text-transform">LTTng</span>
91 - id: tracepoint-provider
92 title: Tracepoint provider
94 title: Using <code>lttng-gen-tp</code>
95 - id: defining-tracepoints
96 title: Defining tracepoints
97 - id: using-tracepoint-classes
98 title: Using tracepoint classes
99 - id: assigning-log-levels
100 title: Assigning log levels to tracepoints
101 - id: probing-the-application-source-code
102 title: Probing the application's source code
103 - id: building-tracepoint-providers-and-user-application
104 title: Building/linking tracepoint providers and the user application
107 title: Static linking
108 - id: dynamic-linking
109 title: Dynamic linking
110 - id: using-lttng-ust-with-daemons
111 title: Using <span class="reset-text-transform">LTTng</span>-UST with daemons
112 - id: lttng-ust-pkg-config
113 title: <span class="reset-text-transform">pkg-config</span>
115 title: Using <code>tracef()</code>
117 title: Using <code>tracelog()</code>
118 - id: lttng-ust-environment-variables-compiler-flags
119 title: <span class="reset-text-transform">LTTng</span>-UST environment variables and special compilation flags
120 - id: cxx-application
121 title: C++ application
122 - id: prebuilt-ust-helpers
123 title: Prebuilt user space tracing helpers
125 - id: liblttng‑ust‑libc‑pthread-wrapper
126 title: C standard library and POSIX threads tracing
127 - id: liblttng‑ust‑cyg‑profile
128 title: Function tracing
129 - id: liblttng‑ust‑dl
130 title: Dynamic linker tracing
131 - id: java-application
132 title: Java application
135 title: <code>java.util.logging</code>
137 title: Apache log4j 1.2
138 - id: python-application
139 title: Python application
140 - id: instrumenting-linux-kernel
143 - id: instrumenting-linux-kernel-itself
144 title: Instrumenting the Linux kernel for <span class="reset-text-transform">LTTng</span>
146 - id: mainline-trace-event
147 title: Defining/using tracepoints with mainline <code>TRACE_EVENT()</code> infrastructure
148 - id: lttng-adaptation-layer
149 title: Adding the <span class="reset-text-transform">LTTng</span> adaptation layer
150 - id: instrumenting-linux-kernel-tracing
152 - id: instrumenting-out-of-tree-linux-kernel
153 title: Instrumenting an out-of-tree Linux kernel module for <span class="reset-text-transform">LTTng</span>
154 - id: proc-lttng-logger-abi
155 title: <span class="reset-text-transform">LTTng</span> logger ABI
156 - id: advanced-instrumenting-techniques
157 title: Advanced techniques
159 - id: instrumenting-32-bit-app-on-64-bit-system
160 title: Instrumenting a 32-bit application on a 64-bit system
162 - id: building-32-bit-userspace-rcu
163 title: Building 32-bit Userspace RCU
164 - id: building-32-bit-lttng-ust
165 title: Building 32-bit <span class="reset-text-transform">LTTng</span>-UST
166 - id: building-32-bit-lttng-tools
167 title: Building 32-bit <span class="reset-text-transform">LTTng</span>-tools
168 - id: building-64-bit-lttng-tools
169 title: Building 64-bit <span class="reset-text-transform">LTTng</span>-tools
170 - id: building-instrumented-32-bit-c-application
171 title: Building an instrumented 32-bit C application
172 - id: running-32-bit-and-64-bit-c-applications
173 title: Running 32-bit and 64-bit versions of an instrumented C application
174 - id: controlling-tracing
175 title: Controlling tracing
177 - id: creating-destroying-tracing-sessions
178 title: Creating and destroying tracing sessions
179 - id: enabling-disabling-events
180 title: Enabling and disabling events
181 - id: basic-tracing-session-control
182 title: Basic tracing session control
183 - id: enabling-disabling-channels
184 title: Enabling and disabling channels
186 - id: fine-tuning-channels
187 title: Fine-tuning channels
189 title: Adding some context to channels
191 title: Tracking process IDs
192 - id: saving-loading-tracing-session
193 title: Saving and loading tracing session configurations
194 - id: sending-trace-data-over-the-network
195 title: Sending trace data over the network
197 title: Viewing events as they arrive
198 - id: taking-a-snapshot
199 title: Taking a snapshot
201 title: Machine interface
202 - id: persistent-memory-file-systems
203 title: Recording trace data on persistent memory file systems
207 - id: online-lttng-manpages
208 title: Online <span class="reset-text-transform">LTTng</span> man pages
210 title: <span class="reset-text-transform">LTTng</span>-UST
213 title: <span class="reset-text-transform">LTTng</span>-UST library (<code>liblttng‑ust</code>)
215 - id: liblttng-ust-tp-fields
216 title: Tracepoint fields macros (for <code>TP_FIELDS()</code>)
217 - id: liblttng-ust-tracepoint-loglevel
218 title: Tracepoint log levels (for <code>TRACEPOINT_LOGLEVEL()</code>)
219 - id: lttng-modules-ref
220 title: <span class="reset-text-transform">LTTng</span>-modules
222 - id: lttng-modules-tp-struct-entry
223 title: Tracepoint fields macros (for <code>TP_STRUCT__entry()</code>)
224 - id: lttng-modules-tp-fast-assign
225 title: Tracepoint assignment macros (for <code>TP_fast_assign()</code>)