devstack/roles/capture-performance-data/README.rst
Dan Smith c2772c2984 Gather performance data after tempest
This makes us gather a bunch of consistent statistics after we run
tempest that can be use to measure the impact of a given change. These
are stable metrics such as "number of DB queries made" and "how much
memory is each service using after a tempest run."

Note that this will always run after devstack to generate the JSON
file, but there are two things that control its completeness:

 - MYSQL_GATHER_PERFORMANCE must be enabled to get per-db stats
 - Unless tls-proxy is enabled, we will only get API stats for keystone

Change-Id: Ie3b1504256dc1c9c6b59634e86fa98494bcb07b1
2022-04-20 13:07:22 -07:00

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Generate performance logs for staging
Captures usage information from mysql, systemd, apache logs, and other
parts of the system and generates a performance.json file in the
staging directory.
**Role Variables**
.. zuul:rolevar:: stage_dir
:default: {{ ansible_user_dir }}
The base stage directory
.. zuul:rolevar:: devstack_conf_dir
:default: /opt/stack
The base devstack destination directory
.. zuul:rolevar:: debian_suse_apache_deref_logs
The apache logs found in the debian/suse locations
.. zuul:rolevar:: redhat_apache_deref_logs
The apache logs found in the redhat locations