September 2016
Intermediate to advanced
989 pages
24h 10m
English
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Using LTTng
LTTng is a set of dual licensed GPLv2 and LGPL tracing and profiling tools for both applications and kernel. It produces binary trace files in the production optimized Compact Trace Format (CTF), which can then be analyzed by tools, such as babeltrace.
Getting ready
To include the different LTTng tools in your system, add the following to your conf/local.conf file:
IMAGE_INSTALL_append = " lttng-tools lttng-modules lttng-ust"
They are also part of the tools-profile image feature, so you can also add them with:
EXTRA_IMAGE_FEATURES += "tools-profile"
These are also included in the -sdk images.
Tip
At the time of writing, Yocto 1.7 excludes lttng-modules from the tools-profile feature and sdk images for ARM; so they have to be added manually. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.