Rechercher dans le manuel MySQL
27.4.3.51 The waits_by_user_by_latency and x$waits_by_user_by_latency Views
These views summarize wait events, grouped by user and event. By default, rows are sorted by user and descending total latency. Idle events are ignored.
The waits_by_user_by_latency
and
x$waits_by_user_by_latency
views
have these columns:
user
The user associated with the connection.
event
The event name.
total
The total number of occurrences of the event for the user.
total_latency
The total wait time of timed occurrences of the event for the user.
avg_latency
The average wait time per timed occurrence of the event for the user.
max_latency
The maximum single wait time of timed occurrences of the event for the user.
Document created the 26/06/2006, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/mysql-rf-sys-waits-by-user-by-latency.html
The infobrol is a personal site whose content is my sole responsibility. The text is available under CreativeCommons license (BY-NC-SA). More info on the terms of use and the author.
References
These references and links indicate documents consulted during the writing of this page, or which may provide additional information, but the authors of these sources can not be held responsible for the content of this page.
The author This site is solely responsible for the way in which the various concepts, and the freedoms that are taken with the reference works, are presented here. Remember that you must cross multiple source information to reduce the risk of errors.