Looking Glass

Looking Glass is a tracer and profiler for Erlang/OTP.

Goals

Looking Glass is the next generation profiling tool. It is implemented as an erl_tracer NIF and thus requires Erlang/OTP 22.0 or above.

Looking Glass aims to provide a very efficient tool usable both in development and production settings, and capable of running for a long amount of time even on busy systems.

Online documentation

• User guide

Offline documentation

• While still online, run make docs

• User guide available in doc/ in PDF and HTML formats

• Function reference man pages available in doc/man3/ and doc/man7/

• Run make install-docs to install man pages on your system

• Full documentation in Asciidoc available in doc/src/

• Examples available in examples/