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| author | Chad Smith <chad.smith@canonical.com> | 2017-08-21 13:46:23 -0600 |
|---|---|---|
| committer | Chad Smith <chad.smith@canonical.com> | 2017-08-21 13:46:23 -0600 |
| commit | e74d7752f1761c3a8d3c19877de4707d00c49d08 (patch) | |
| tree | 0627dd5d06d83b770b38196bceabddd06c0b1b77 /doc/rtd/topics/logging.rst | |
| parent | dc2bd79949492bccdc1d7df0132f98c354d51943 (diff) | |
| download | vyos-cloud-init-e74d7752f1761c3a8d3c19877de4707d00c49d08.tar.gz vyos-cloud-init-e74d7752f1761c3a8d3c19877de4707d00c49d08.zip | |
tools: Add tooling for basic cloud-init performance analysis.
This branch adds cloudinit-analyze into cloud-init proper. It adds an
"analyze" subcommand to the cloud-init command line utility for quick
performance assessment of cloud-init stages and events.
On a cloud-init configured instance, running "cloud-init analyze blame"
will now report which cloud-init events cost the most wall time. This
allows for quick assessment of the most costly stages of cloud-init.
This functionality is pulled from Ryan Harper's analyze work.
The cloudinit-analyze main script itself has been refactored a bit for
inclusion as a subcommand of cloud-init CLI. There will be a followup
branch at some point which will optionally instrument detailed strace
profiling, but that approach needs a bit more discussion first.
This branch also adds:
* additional debugging topic to the sphinx-generated docs describing
cloud-init analyze, dump and show as well as cloud-init single usage.
* Updates the Makefile unittests target to include cloudinit directory
because we now have unittests within that package.
LP: #1709761
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